LOCAL CLIMATOLOGICAL DATA
Monthly Summary
December 2006
Station: Round Rock
Latitude: 30° 32' 55" N Longitude: 97° 37' 34" W Elevation (ground): 709 feet Time Zone: Central
+--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+
| | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun |
| +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+
| | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak | Minute| Mean |
| | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ |
| | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I |
| D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n |
| a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d |
| t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e |
| e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | x |
| | | | | | | | | |9 blw snw| | | | | | | | | | | | | | |
| 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 |
+--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
|01| 55.3 | 24.7 | 40.0 | 39.2 | 26| 62| 25| 0|.........| 0| 0.00| 0.0| 30.37| 30.23|30.301| 0.4| 0.1|105| 7|WNW| 3|298| 153 |
|02| 56.0 | 33.2 | 44.6 | 42.9 | 30| 63| 20| 0|.........| 0| 0.00| 0.0| 30.43| 30.26|30.328| 0.8| 0.8| 82| 9| NE| 5| 85| 136 |
|03| 50.8 | 32.1 | 41.4 | 39.6 | 25| 59| 23| 0|.........| 0| 0.00| 0.0| 30.74| 30.42|30.607| 2.5| 2.5| 54| 16| N| 9| 41| 132 |
|04| 53.2 | 24.4*| 38.8 | 37.6 | 20| 52| 26| 0|.........| 0| 0.00| 0.0| 30.75| 30.50|30.638| 0.3| 0.2| 48| 5| NE| 3| 88| 164 |
|05| 61.8 | 29.8 | 45.8 | 47.1 | 29| 52| 19| 0|.........| 0| 0.00| 0.0| 30.50| 30.18|30.358| 1.5| 1.5|233| 15|SSW| 6|229| 152 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|06| 76.1 | 53.1 | 64.6 | 60.9 | 46| 60| 0| 0|.........| 0| 0.00| 0.0| 30.25| 30.08|30.149| 1.6| 1.0|243| 18| SW| 7|239| 141 |
|07| 57.0 | 35.9 | 46.5 | 49.6 | 30| 49| 18| 0|.........| 0| 0.00| 0.0| 30.70| 30.24|30.496| 4.4| 4.4| 56| 17| E| 9| 51| 87 |
|08| 43.9 | 27.5 | 35.7*| 35.7 | 12| 37| 29| 0|.........| 0| 0.00| 0.0| 30.76| 30.56|30.665| 1.1| 1.1| 53| 12|NNW| 6| 50| 107 |
|09| 55.1 | 36.3 | 45.7 | 45.8 | 21| 38| 19| 0|.........| 0| 0.00| 0.0| 30.56| 30.33|30.432| 0.6| 0.6|242| 11|WSW| 4|229| 96 |
|10| 54.4 | 46.1 | 50.3 | 50.0 | 45| 84| 15| 0|12.......| 0| 0.02| 0.0| 30.33| 30.15|30.229| 0.3| 0.2|212| 5| SW| 2|234| 28 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|11| 74.4 | 54.2 | 64.3 | 61.6 | 57| 85| 1| 0|12.......| 0| 0.00| 0.0| 30.17| 30.05|30.118| 1.7| 1.7|233| 18| SW| 9|236| 116 |
|12| 75.6 | 40.9 | 58.3 | 57.8 | 38| 56| 6| 0|.........| 0| 0.01| 0.0| 30.24| 30.11|30.171| 2.5| 2.4|282| 20|WNW| 12|285| 159 |
|13| 76.7 | 34.3 | 55.5 | 54.7 | 33| 49| 9| 0|.........| 0| 0.00| 0.0| 30.25| 30.07|30.156| 0.5| 0.5|234| 13|SSW| 5|236| 157 |
|14| 78.1 | 44.9 | 61.5 | 60.2 | 50| 71| 3| 0|.........| 0| 0.00| 0.0| 30.09| 29.94|30.020| 1.0| 1.0|234| 16|SSW| 6|236| 144 |
|15| 76.0 | 49.5 | 62.8 | 62.0 | 56| 83| 2| 0|12.......| 0| 0.01| 0.0| 30.01| 29.87|29.934| 1.0| 1.0|234| 15| W| 6|227| 119 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|16| 80.3 | 58.7 | 69.5 | 67.4 | 58| 76| 0| 5|.........| 0| 0.00| 0.0| 29.98| 29.86|29.923| 2.6| 2.5|233| 19| W| 9|224| 142 |
|17| 79.8 | 61.3 | 70.6 | 69.5 | 60| 75| 0| 6|.........| 0| 0.00| 0.0| 30.08| 29.98|30.017| 2.3| 2.3|234| 17| S| 8|228| 130 |
|18| 80.9*| 61.3 | 71.1*| 69.0 | 63| 82| 0| 6|.........| 0| 0.00| 0.0| 30.19| 30.07|30.128| 1.0| 0.9| 99| 10|ESE| 4| 90| 95 |
|19| 66.1 | 60.9 | 63.5 | 64.5 | 63| 95| 1| 0|.........| 0| 0.03| 0.0| 30.23| 29.96|30.131| 1.0| 1.0| 83| 12| E| 4| 86| 23 |
|20| 66.0 | 48.8 | 57.4 | 58.5 | 54| 85| 7| 0|.........| 0| 0.12| 0.0| 30.01| 29.89|29.948| 1.3| 1.1|295| 20|NNW| 14|328| 29 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|21| 67.6 | 41.2 | 54.4 | 51.8 | 39| 68| 10| 0|.........| 0| 0.00| 0.0| 30.08| 29.96|30.017| 0.4| 0.3| 4| 11| NW| 6|334| 89 |
|22| 63.7 | 36.2 | 50.0 | 48.5 | 32| 55| 15| 0|.........| 0| 0.00| 0.0| 30.16| 30.03|30.083| 0.6| 0.5| 32| 10|WNW| 4|322| 156 |
|23| 53.3 | 36.5 | 44.9 | 44.7 | 37| 75| 20| 0|.........| 0| 1.15| 0.0| 30.26| 30.11|30.178| 1.8| 1.8| 58| 14|NNE| 7| 56| 55 |
|24| 45.7 | 42.9 | 44.3 | 44.4 | 43| 94| 20| 0|.........| 0| 0.86| 0.0| 30.19| 29.96|30.069| 2.2| 1.8|346| 14| NW| 8|328| 21 |
|25| 53.5 | 33.7 | 43.6 | 44.2 | 31| 64| 21| 0|.........| 0| 0.04| 0.0| 30.24| 29.96|30.125| 6.6| 6.5|323| 31|WNW| 17|318| 141 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|26| 61.2 | 28.4 | 44.8 | 43.2 | 24| 51| 20| 0|.........| 0| 0.00| 0.0| 30.32| 30.17|30.230| 0.3| 0.2|252| 7|WSW| 3|225| 158 |
|27| 66.9 | 34.3 | 50.6 | 50.3 | 37| 64| 14| 0|.........| 0| 0.00| 0.0| 30.17| 29.94|30.054| 1.7| 1.7|243| 17| SW| 8|240| 158 |
|28| 71.6 | 49.6 | 60.6 | 60.7 | 54| 81| 4| 0|.........| 0| 0.00| 0.0| 29.94| 29.77|29.855| 1.8| 0.8|335| 14| SW| 7|258| 74 |
|29| 71.8 | 53.1 | 62.5 | 62.5 | 59| 90| 2| 0|..3.5....| 0| 1.89| 0.0| 29.95| 29.74|29.868| 2.4| 0.6|287| 24|WSW| 13|290| 40 |
|30| 56.6 | 43.1 | 49.8 | 50.9 | 46| 83| 15| 0|.........| 0| 0.39| 0.0| 30.09| 29.87|30.006| 0.8| 0.8|263| 12| NW| 6|327| 62 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|31| 59.6 | 39.5 | 49.5 | 47.4 | 36| 68| 15| 0|.........| 0| 0.01| 0.0| 30.28| 30.09|30.162| 3.6| 3.3|286| 24| W| 14|319| 158 |
+--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- |
+------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+
|1989.0|1296.4|------|------|---|----| 379| 17| Days | 4.53| 0.0| 30.76| 29.74|30.174| 1.6| 0.5|302| 31|WNW| 17|318| ---- |
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg |
+------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+
| 64.2| 41.8| 53.0 | 52.3 | 40|67.9|----|----|>.01 Inch 11|12.74| 0.0| 8 | 29 |------|----|----|---| 25 | 25 | 110|
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+
| | Season |Snow, Ice | | |
| Number of Days | to Date |>1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground |
+------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice |
| Max Temperature | Min Temperature | 568| 374|Thunder 1|Precipitation | Snow, Ice Plts | and Date |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+
| >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 3| 2.26| 29-30| 0.0 | - | 0 | - |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+
| 0 | 0 | 6 | 0 |----|----| Clear 23 Partly Cloudy 2 Cloudy 6 |
+--------+---------+--------+--------+----+----+------------------------------------------+
NOTES:
Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations
Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches.
for 24 hours.
Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours.
Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F.
Data in columns 9, 10, 12 are entered manually by the station observer.
Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations.
Column 23: Sunshine index is measured in Watts/m^2 and is continuously averaged for 24 hours.
Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.
OBSERVATIONS AT 3-HOUR INTERVALS
December 2006: Round Rock
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+
| | | | | | | | | | | | | | | | | | | | | | |
| | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind |
| | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+
| | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | |
| | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | |
| | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | |
| | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | |
| | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | |
| H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G |
| o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u |
| u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s |
| r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 1 | DEC 2 | DEC 3 |
| | | |
|01| 0|30.35| 0.00| 31| 22| 70|27| 0| 3| 0|30.29| 0.00| 37| 29| 73|28| 0| 0| 0|30.44| 0.00| 37| 29| 71|03| 1| 5|
|04| 0|30.33| 0.00| 28| 20| 74|28| 0| 0| 0|30.26| 0.00| 35| 29| 78|28| 0| 0| 0|30.48| 0.00| 36| 31| 81|00| 1| 4|
|07| 0|30.35| 0.00| 25| 20| 83|28| 0| 0| 0|30.31| 0.00| 35| 29| 81|28| 0| 1| 0|30.58| 0.00| 34| 28| 80|05| 2| 6|
|10| 436|30.36| 0.00| 41| 29| 61|24| 0| 2| 272|30.36| 0.00| 45| 33| 65|06| 1| 4| 206|30.66| 0.00| 40| 29| 66|06| 3| 9|
|13| 587|30.28| 0.00| 51| 29| 44|10| 1| 4| 591|30.32| 0.00| 54| 31| 42|07| 1| 6| 517|30.61| 0.00| 49| 28| 45|03| 5| 11|
|16| 311|30.23| 0.00| 54| 29| 39|06| 0| 2| 294|30.29| 0.00| 55| 30| 38|06| 2| 6| 83|30.62| 0.00| 48| 20| 32|05| 6| 14|
|19| 0|30.26| 0.00| 45| 30| 55|11| 0| 1| 0|30.36| 0.00| 44| 32| 62|07| 0| 0| 0|30.69| 0.00| 41| 22| 46|02| 3| 7|
|22| 0|30.28| 0.00| 41| 29| 63|28| 0| 1| 0|30.40| 0.00| 40| 30| 67|03| 0| 1| 0|30.72| 0.00| 34| 21| 58|01| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 4 | DEC 5 | DEC 6 |
| | | |
|01| 0|30.72| 0.00| 32| 19| 60|03| 1| 4| 0|30.49| 0.00| 35| 22| 60|20| 0| 0| 0|30.16| 0.00| 54| 40| 60|24| 1| 5|
|04| 0|30.73| 0.00| 28| 19| 67|32| 1| 4| 0|30.45| 0.00| 31| 22| 70|20| 0| 0| 0|30.14| 0.00| 53| 44| 71|23| 1| 4|
|07| 0|30.73| 0.00| 25| 18| 74|32| 0| 1| 0|30.46| 0.00| 30| 23| 74|20| 0| 0| 0|30.14| 0.00| 54| 46| 75|22| 0| 1|
|10| 422|30.75| 0.00| 39| 22| 51|04| 1| 5| 403|30.47| 0.00| 51| 27| 39|22| 1| 5| 309|30.17| 0.00| 63| 51| 64|23| 5| 12|
|13| 647|30.61| 0.00| 48| 20| 32|08| 1| 4| 605|30.34| 0.00| 60| 26| 27|22| 1| 7| 668|30.10| 0.00| 75| 51| 43|23| 3| 7|
|16| 302|30.53| 0.00| 52| 20| 28|19| 0| 3| 264|30.26| 0.00| 60| 27| 28|25| 3| 11| 315|30.09| 0.00| 73| 49| 44|31| 2| 5|
|19| 0|30.54| 0.00| 42| 22| 44|15| 0| 0| 0|30.24| 0.00| 56| 42| 59|22| 3| 9| 0|30.17| 0.00| 61| 44| 54|04| 0| 3|
|22| 0|30.53| 0.00| 36| 23| 59|15| 0| 0| 0|30.21| 0.00| 55| 41| 59|22| 2| 6| 0|30.22| 0.00| 55| 43| 64|02| 2| 4|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 7 | DEC 8 | DEC 9 |
| | | |
|01| 0|30.25| 0.00| 53| 41| 66|07| 2| 5| 0|30.69| 0.00| 35| 7| 31|05| 4| 9| 0|30.53| 0.00| 37| 19| 48|00| 0| 0|
|04| 0|30.30| 0.00| 50| 41| 70|05| 4| 10| 0|30.69| 0.00| 30| 12| 46|03| 1| 5| 0|30.50| 0.00| 40| 19| 43|22| 0| 2|
|07| 0|30.42| 0.00| 49| 37| 63|06| 3| 10| 0|30.73| 0.00| 28| 10| 46|06| 1| 7| 0|30.49| 0.00| 40| 17| 39|22| 0| 3|
|10| 244|30.53| 0.00| 52| 34| 50|06| 5| 12| 188|30.76| 0.00| 34| 10| 37|05| 2| 7| 148|30.50| 0.00| 43| 17| 34|22| 2| 5|
|13| 236|30.55| 0.00| 54| 29| 39|06| 6| 12| 469|30.67| 0.00| 43| 11| 26|33| 2| 7| 619|30.40| 0.00| 54| 20| 26|24| 1| 5|
|16| 294|30.54| 0.00| 57| 29| 35|04| 6| 15| 86|30.62| 0.00| 42| 11| 27|05| 0| 2| 143|30.35| 0.00| 53| 20| 27|27| 1| 4|
|19| 0|30.61| 0.00| 47| 23| 38|05| 7| 15| 0|30.59| 0.00| 41| 13| 32|05| 0| 0| 0|30.36| 0.00| 50| 23| 35|24| 0| 1|
|22| 0|30.67| 0.00| 40| 15| 36|05| 4| 11| 0|30.59| 0.00| 36| 15| 41|05| 0| 0| 0|30.35| 0.00| 49| 31| 50|22| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 10 | DEC 11 | DEC 12 |
| | | |
|01| 0|30.31| 0.00| 49| 34| 57|22| 1| 4| 0|30.15| 0.00| 55| 54| 96|22| 0| 2| 0|30.11| 0.00| 54| 52| 94|25| 3| 6|
|04| 0|30.28| 0.00| 49| 40| 73|23| 0| 3| 0|30.14| 0.00| 55| 55| 97|22| 0| 2| 0|30.12| 0.00| 54| 51| 91|26| 2| 6|
|07| 0|30.28| 0.00| 47| 41| 78|04| 0| 3| 0|30.13| 0.00| 56| 55| 97|24| 1| 3| 0|30.18| 0.00| 50| 46| 85|24| 3| 7|
|10| 53|30.30| 0.00| 47| 44| 90|11| 0| 2| 385|30.15| 0.00| 66| 60| 81|23| 3| 10| 381|30.23| 0.00| 62| 39| 42|26| 6| 11|
|13| 93|30.22| 0.00| 51| 49| 93|19| 1| 3| 206|30.10| 0.00| 70| 60| 71|23| 4| 13| 636|30.15| 0.00| 74| 28| 18|29| 8| 16|
|16| 74|30.15| 0.00| 53| 51| 93|22| 1| 3| 241|30.06| 0.00| 73| 59| 62|22| 2| 9| 299|30.13| 0.00| 72| 26| 18|30| 3| 11|
|19| 0|30.15| 0.00| 53| 51| 94|21| 0| 2| 0|30.10| 0.00| 62| 57| 84|23| 1| 4| 0|30.18| 0.00| 54| 30| 39|32| 0| 0|
|22| 0|30.17| 0.00| 54| 52| 95|21| 0| 0| 0|30.13| 0.00| 58| 55| 91|24| 2| 5| 0|30.23| 0.00| 45| 32| 61|32| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 13 | DEC 14 | DEC 15 |
| | | |
|01| 0|30.20| 0.00| 40| 32| 72|32| 0| 1| 0|30.07| 0.00| 51| 36| 57|22| 0| 1| 0|29.96| 0.00| 54| 52| 94|24| 0| 1|
|04| 0|30.20| 0.00| 37| 30| 76|32| 0| 0| 0|30.06| 0.00| 47| 41| 80|22| 0| 0| 0|29.93| 0.00| 52| 51| 96|24| 0| 0|
|07| 0|30.23| 0.00| 34| 29| 80|32| 0| 0| 0|30.08| 0.00| 45| 39| 78|22| 0| 1| 0|29.97| 0.00| 53| 52| 98|24| 0| 1|
|10| 396|30.24| 0.00| 58| 38| 49|28| 0| 1| 253|30.08| 0.00| 66| 58| 76|24| 5| 10| 160|30.00| 0.00| 61| 60| 99|23| 1| 5|
|13| 629|30.14| 0.00| 76| 33| 21|24| 3| 9| 533|30.00| 0.00| 74| 58| 57|22| 5| 13| 629|29.93| 0.00| 73| 62| 70|22| 4| 9|
|16| 278|30.07| 0.00| 74| 31| 20|21| 0| 3| 253|29.95| 0.00| 75| 58| 54|22| 1| 7| 258|29.87| 0.00| 75| 58| 57|22| 2| 11|
|19| 0|30.10| 0.00| 61| 32| 33|11| 0| 0| 0|29.97| 0.00| 64| 56| 76|24| 1| 4| 0|29.91| 0.00| 65| 56| 71|21| 0| 2|
|22| 0|30.10| 0.00| 58| 36| 45|22| 2| 3| 0|29.99| 0.00| 57| 53| 89|24| 0| 0| 0|29.92| 0.00| 62| 58| 85|23| 2| 4|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 16 | DEC 17 | DEC 18 |
| | | |
|01| 0|29.91| 0.00| 59| 56| 92|24| 1| 3| 0|29.98| 0.00| 66| 63| 89|23| 4| 12| 0|30.08| 0.00| 65| 63| 95|26| 0| 6|
|04| 0|29.91| 0.00| 61| 60| 96|23| 3| 6| 0|29.99| 0.00| 66| 63| 93|25| 1| 5| 0|30.08| 0.00| 64| 63| 95|14| 0| 2|
|07| 0|29.93| 0.00| 62| 61| 98|24| 2| 8| 0|30.03| 0.00| 65| 63| 91|23| 1| 4| 0|30.13| 0.00| 65| 64| 98|17| 1| 3|
|10| 197|29.97| 0.00| 67| 61| 80|22| 4| 10| 450|30.06| 0.00| 73| 62| 69|23| 3| 13| 102|30.19| 0.00| 69| 65| 87|21| 0| 1|
|13| 594|29.90| 0.00| 79| 58| 50|24| 5| 15| 654|30.00| 0.00| 78| 59| 52|23| 4| 15| 213|30.13| 0.00| 77| 61| 57|09| 2| 4|
|16| 251|29.86| 0.00| 78| 55| 45|22| 4| 11| 84|29.98| 0.00| 77| 58| 53|25| 2| 6| 272|30.09| 0.00| 77| 59| 55|11| 1| 3|
|19| 0|29.91| 0.00| 67| 55| 65|24| 0| 2| 0|30.02| 0.00| 68| 57| 67|22| 0| 1| 0|30.14| 0.00| 70| 63| 79|09| 2| 9|
|22| 0|29.97| 0.00| 65| 58| 80|22| 1| 4| 0|30.06| 0.00| 65| 58| 78|21| 1| 5| 0|30.17| 0.00| 67| 63| 89|09| 3| 7|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Precipitation | 0.25 | 0.31 | 0.34 | 0.37 | 0.42 | 0.55 | 0.75 | 0.76 | 0.81 | 0.92 | 0.95 | 0.95 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Date | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Time | 1510 | 1512 | 1512 | 1513 | 1513 | 1515 | 1513 | 1515 | 1511 | 1515 | 1539 | 1539 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated
is the ending time of the interval. Date and time are not entered for trace amounts.
OBSERVATIONS AT 3-HOUR INTERVALS
December 2006: Round Rock
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+
| | | | | | | | | | | | | | | | | | | | | | |
| | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind |
| | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+
| | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | |
| | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | |
| | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | |
| | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | |
| | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | |
| H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G |
| o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u |
| u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s |
| r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 19 | DEC 20 | DEC 21 |
| | | |
|01| 0|30.18| 0.00| 66| 63| 91|06| 0| 2| 0|29.95| 0.00| 65| 64| 97|06| 1| 6| 0|30.01| 0.00| 47| 43| 86|00| 0| 0|
|04| 0|30.17| 0.00| 65| 64| 96|06| 0| 3| 0|29.90| 0.00| 65| 64| 98|28| 2| 4| 0|30.00| 0.00| 43| 41| 92|00| 0| 0|
|07| 0|30.19| 0.00| 65| 63| 96|09| 0| 2| 0|29.90| 0.00| 66| 65| 98|22| 3| 8| 0|30.03| 0.00| 41| 40| 94|00| 0| 1|
|10| 23|30.23| 0.00| 61| 60| 95|03| 2| 6| 33|30.00| 0.00| 54| 50| 87|27| 3| 11| 130|30.07| 0.00| 50| 49| 96|00| 0| 2|
|13| 234|30.14| 0.00| 65| 63| 95|09| 2| 4| 98|29.95| 0.00| 55| 50| 84|33| 1| 4| 823|29.98| 0.00| 66| 33| 29|05| 2| 4|
|16| 19|30.09| 0.00| 66| 64| 96|16| 0| 2| 58|29.92| 0.00| 58| 47| 66|35| 1| 2| 107|29.96| 0.00| 65| 29| 26|05| 2| 6|
|19| 0|30.07| 0.00| 65| 64| 95|09| 1| 4| 0|29.97| 0.00| 57| 47| 69|00| 0| 1| 0|30.02| 0.00| 56| 39| 53|06| 0| 0|
|22| 0|30.03| 0.00| 64| 63| 95|08| 1| 4| 0|29.99| 0.00| 52| 46| 80|00| 0| 1| 0|30.05| 0.00| 48| 35| 59|02| 1| 3|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 22 | DEC 23 | DEC 24 |
| | | |
|01| 0|30.05| 0.00| 45| 35| 66|01| 0| 5| 0|30.11| 0.00| 40| 32| 72|08| 0| 0| 0|30.15| 0.00| 45| 43| 94|04| 3| 7|
|04| 0|30.06| 0.00| 42| 33| 71|02| 1| 4| 0|30.13| 0.00| 38| 32| 80|08| 0| 1| 0|30.13| 0.04| 45| 43| 95|07| 1| 6|
|07| 0|30.10| 0.00| 37| 30| 76|04| 0| 2| 0|30.19| 0.00| 37| 32| 82|04| 0| 3| 0|30.16| 0.12| 44| 42| 94|34| 1| 9|
|10| 367|30.16| 0.00| 52| 32| 46|05| 3| 6| 387|30.25| 0.00| 50| 37| 60|07| 4| 10| 51|30.16| 0.00| 44| 42| 94|03| 2| 5|
|13| 626|30.06| 0.00| 59| 29| 31|09| 0| 3| 54|30.18| 0.00| 53| 35| 50|07| 3| 6| 54|30.07| 0.05| 45| 43| 93|32| 2| 10|
|16| 304|30.04| 0.00| 61| 30| 30|08| 0| 2| 11|30.18| 0.00| 50| 41| 73|32| 0| 1| 39|29.99| 0.08| 45| 43| 92|31| 3| 10|
|19| 0|30.08| 0.00| 51| 32| 47|08| 0| 1| 0|30.22| 0.43| 46| 43| 88|07| 2| 6| 0|29.98| 0.00| 44| 42| 93|31| 2| 5|
|22| 0|30.10| 0.00| 43| 33| 69|08| 0| 0| 0|30.22| 0.13| 45| 43| 91|03| 2| 5| 0|29.98| 0.00| 44| 43| 94|33| 0| 3|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 25 | DEC 26 | DEC 27 |
| | | |
|01| 0|29.97| 0.00| 42| 41| 94|33| 1| 4| 0|30.24| 0.00| 34| 21| 58|28| 1| 3| 0|30.17| 0.00| 36| 30| 78|12| 0| 0|
|04| 0|30.01| 0.00| 42| 40| 92|30| 7| 16| 0|30.25| 0.00| 32| 21| 64|27| 0| 0| 0|30.13| 0.00| 37| 29| 73|17| 0| 2|
|07| 0|30.09| 0.00| 42| 38| 87|32| 8| 21| 0|30.27| 0.00| 30| 22| 73|27| 0| 2| 0|30.14| 0.00| 35| 30| 82|17| 0| 2|
|10| 353|30.18| 0.00| 44| 37| 76|32| 9| 20| 376|30.31| 0.00| 47| 21| 35|30| 1| 3| 378|30.14| 0.00| 53| 40| 62|22| 2| 11|
|13| 617|30.14| 0.00| 52| 34| 50|33| 9| 26| 635|30.21| 0.00| 58| 21| 23|26| 0| 5| 626|30.02| 0.00| 65| 37| 36|24| 4| 15|
|16| 322|30.14| 0.00| 53| 23| 31|32| 10| 21| 313|30.17| 0.00| 58| 24| 27|07| 2| 4| 311|29.95| 0.00| 66| 40| 39|26| 3| 11|
|19| 0|30.19| 0.00| 44| 23| 44|29| 4| 9| 0|30.19| 0.00| 49| 31| 50|12| 0| 2| 0|29.96| 0.00| 58| 42| 57|22| 1| 6|
|22| 0|30.23| 0.00| 39| 21| 49|32| 3| 6| 0|30.19| 0.00| 42| 29| 60|12| 0| 0| 0|29.96| 0.00| 54| 48| 82|25| 2| 6|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 28 | DEC 29 | DEC 30 |
| | | |
|01| 0|29.92| 0.00| 51| 48| 89|33| 1| 4| 0|29.87| 0.00| 64| 59| 84|08| 3| 7| 0|29.91| 0.00| 53| 50| 91|24| 1| 3|
|04| 0|29.87| 0.00| 51| 50| 95|24| 1| 3| 0|29.88| 0.00| 63| 60| 90|09| 2| 6| 0|29.95| 0.04| 50| 49| 94|23| 0| 3|
|07| 0|29.87| 0.00| 51| 50| 97|25| 1| 5| 0|29.92| 0.00| 64| 61| 92|09| 1| 4| 0|29.96| 0.00| 49| 48| 96|29| 0| 2|
|10| 250|29.91| 0.00| 60| 55| 83|29| 2| 7| 81|29.92| 0.00| 65| 64| 95|09| 2| 6| 121|30.02| 0.00| 53| 49| 86|26| 2| 7|
|13| 95|29.80| 0.00| 70| 56| 63|03| 3| 10| 255|29.81| 0.00| 71| 67| 87|25| 5| 11| 209|30.01| 0.00| 54| 44| 69|28| 2| 6|
|16| 91|29.77| 0.00| 69| 56| 62|02| 5| 11| 100|29.76| 0.00| 67| 65| 93|25| 3| 7| 90|30.01| 0.00| 55| 44| 66|21| 1| 4|
|19| 0|29.83| 0.00| 67| 58| 73|02| 2| 7| 0|29.89| 0.49| 54| 51| 91|30| 3| 11| 0|30.05| 0.00| 50| 42| 73|21| 0| 0|
|22| 0|29.87| 0.00| 65| 58| 79|02| 2| 13| 0|29.91| 0.00| 53| 50| 87|29| 0| 0| 0|30.09| 0.00| 45| 42| 88|21| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 31 | | |
| | | |
|01| 0|30.09| 0.00| 44| 42| 93|27| 0| 0| | |
|04| 0|30.10| 0.00| 41| 40| 95|25| 0| 1| | |
|07| 0|30.15| 0.00| 40| 39| 96|25| 2| 5| | |
|10| 371|30.18| 0.00| 51| 40| 64|27| 5| 12| | |
|13| 631|30.13| 0.00| 58| 35| 42|28| 11| 19| | |
|16| 325|30.14| 0.00| 57| 33| 40|31| 7| 19| | |
|19| 0|30.21| 0.00| 47| 32| 56|35| 0| 3| | |
|22| 0|30.26| 0.00| 44| 30| 57|34| 2| 6| | |
+--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+
Wind Direction: Directions are those from which the wind is blowing, | | Averages | |
indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant|
South, 27 for West, and 00 or 36 for North. | | | | | | | | |
Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind |
Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+
preceding the observation. | | | | m | D | | i | D | |
Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | |
calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | |
gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | |
| | s | s | a | P | i | S | c | S |
| H| h | s | t | o | d | p | t | p |
| o| i | u | u | i | i | e | i | e |
| u| n | r | r | n | t | e | o | e |
| r| e | e | e | t | y | d | n | d |
+--+----+------+---+---+---+-----+----+----+
|01| 0|30.167| 47| 40| 78| 0.9| 00 | 0.1|
|04| 0|30.162| 46| 40| 82| 0.9| 31 | 0.3|
|07| 0|30.195| 45| 40| 84| 1.1| 29 | 0.4|
|10| 263|30.233| 53| 42| 68| 2.7| 28 | 1.0|
|13| 465|30.158| 61| 40| 50| 3.7| 29 | 1.8|
|16| 207|30.125| 61| 39| 48| 2.6| 31 | 1.3|
|19| 0|30.163| 54| 40| 62| 1.0| 00 | 0.3|
|22| 0|30.185| 50| 40| 70| 1.1| 36 | 0.3|
+--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
December 2006: Round Rock
---+-----------------------------------------------------------+-----------------------------------------------------------+---
| | |
D| A.M. Hour Ending at | P.M. Hour Ending at |D
a| | |a
t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t
e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
01| | | | | | | | | | | | | | | | | | | | | | | | |01
02| | | | | | | | | | | | | | | | | | | | | | | | |02
03| | | | | | | | | | | | | | | | | | | | | | | | |03
04| | | | | | | | | | | | | | | | | | | | | | | | |04
05| | | | | | | | | | | | | | | | | | | | | | | | |05
| | | | | | | | | | | | | | | | | | | | | | | | |
06| | | | | | | | | | | | | | | | | | | | | | | | |06
07| | | | | | | | | | | | | | | | | | | | | | | | |07
08| | | | | | | | | | | | | | | | | | | | | | | | |08
09| | | | | | | | | | | | | | | | | | | | | | | | |09
10| | | | | | | | | |0.01|0.01| | | | | | | | | | | | | |10
| | | | | | | | | | | | | | | | | | | | | | | | |
11| | | | | | | | | | | | | | | | | | | | | | | | |11
12|0.01| | | | | | | | | | | | | | | | | | | | | | | |12
13| | | | | | | | | | | | | | | | | | | | | | | | |13
14| | | | | | | | | | | | | | | | | | | | | | | | |14
15| | | | | | |0.01| | | | | | | | | | | | | | | | | |15
| | | | | | | | | | | | | | | | | | | | | | | | |
16| | | | | | | | | | | | | | | | | | | | | | | | |16
17| | | | | | | | | | | | | | | | | | | | | | | | |17
18| | | | | | | | | | | | | | | | | | | | | | | | |18
19| | | | | | | | | | | |0.01| |0.01| | |0.01| | | | | | | |19
20| | | | |0.01| | | |0.07| |0.01|0.01|0.01| | | | | | | |0.01| | | |20
| | | | | | | | | | | | | | | | | | | | | | | | |
21| | | | | | | | | | | | | | | | | | | | | | | | |21
22| | | | | | | | | | | | | | | | | | | | | | | | |22
23| | | | | | | | | | | | | | | |0.02|0.08|0.12|0.23|0.21|0.21|0.12|0.13|0.03|23
24|0.03|0.03|0.06|0.05|0.04|0.03|0.06|0.09|0.03|0.03|0.04|0.01|0.05|0.07|0.02|0.04|0.09|0.04|0.01|0.02|0.01|0.01| | |24
25| | | | | |0.01|0.01|0.02| | | | | | | | | | | | | | | | |25
| | | | | | | | | | | | | | | | | | | | | | | | |
26| | | | | | | | | | | | | | | | | | | | | | | | |26
27| | | | | | | | | | | | | | | | | | | | | | | | |27
28| | | | | | | | | | | | | | | | | | | | | | | | |28
29| | |0.01|0.01| | | | | |0.06|0.04|0.21| |0.16|0.42|0.37|0.01|0.07|0.48|0.04|0.01| | | |29
30|0.04|0.09|0.17|0.04|0.04|0.01| | | | | | | | | | | | | | | | | | |30
31| | | | | |0.01| | | | | | | | | | | | | | | | | | |31
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
Sum|0.08|0.12|0.24|0.10|0.09|0.06|0.08|0.11|0.10|0.10|0.10|0.24|0.06|0.24|0.44|0.43|0.19|0.23|0.72|0.27|0.24|0.13|0.13|0.03|Sum
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are
typically entered in the last column (hour ending at 12 A.M.)