LOCAL CLIMATOLOGICAL DATA
Monthly Summary
December 2007
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| 74.2 | 63.1 | 68.6 | 67.9 | 64| 88| 0| 4|1........| 0| 0.00| 0.0| 30.13| 29.88|29.981| 1.7| 1.5|261| 15| W| 6|256| 31 |
|02| 82.8*| 49.8 | 66.3 | 70.0 | 56| 66| 0| 2|.........| 0| 0.00| 0.0| 30.43| 29.91|30.097| 2.7| 0.7|290| 20|NNW| 12|312| 87 |
|03| 60.4 | 35.0 | 47.7 | 46.9 | 25| 46| 17| 0|.........| 0| 0.00| 0.0| 30.59| 30.33|30.464| 1.3| 1.3| 49| 13|NNE| 6| 64| 165 |
|04| 71.8 | 30.4 | 51.1 | 50.5 | 31| 53| 14| 0|.........| 0| 0.00| 0.0| 30.33| 29.86|30.095| 0.6| 0.6|230| 15| SW| 6|242| 157 |
|05| 78.5 | 40.6 | 59.5 | 58.1 | 39| 53| 5| 0|.........| 0| 0.00| 0.0| 29.99| 29.83|29.884| 0.4| 0.2| 48| 9|NNE| 4| 56| 155 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|06| 72.5 | 39.9 | 56.2 | 57.9 | 47| 69| 8| 0|.........| 0| 0.00| 0.0| 30.07| 29.88|29.969| 1.1| 0.5|239| 17|SSW| 8|230| 122 |
|07| 79.6 | 66.1 | 72.8 | 69.7 | 64| 83| 0| 8|1........| 0| 0.00| 0.0| 29.97| 29.87|29.919| 1.8| 1.8|231| 18|WSW| 7|227| 88 |
|08| 82.4 | 68.6 | 75.5*| 73.2 | 66| 81| 0| 11|.........| 0| 0.00| 0.0| 30.04| 29.92|29.970| 1.4| 1.3|252| 16| S| 6|221| 62 |
|09| 81.4 | 39.2 | 60.3 | 60.6 | 57| 87| 5| 0|.........| 0| 0.01| 0.0| 30.22| 29.97|30.089| 1.6| 1.0| 48| 12|NNW| 6| 54| 73 |
|10| 47.3 | 37.6 | 42.4 | 42.1 | 41| 97| 22| 0|12.......| 0| 0.03| 0.0| 30.25| 30.05|30.160| 1.0| 1.0| 50| 11| N| 4|337| 28 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|11| 78.8 | 47.3 | 63.1 | 64.5 | 62| 91| 2| 0|1.3......| 0| 0.52| 0.0| 30.13| 29.92|29.993| 1.4| 0.5|275| 15|NNW| 7|332| 54 |
|12| 54.1 | 40.1 | 47.1 | 43.4 | 42| 95| 18| 0|.........| 0| 0.22| 0.0| 30.27| 30.12|30.188| 2.5| 2.2| 40| 15| NE| 7|341| 17 |
|13| 58.9 | 36.2 | 47.6 | 48.0 | 42| 79| 17| 0|.........| 0| 0.01| 0.0| 30.29| 30.15|30.204| 0.6| 0.4| 60| 13|NNW| 5|337| 131 |
|14| 58.0 | 48.5 | 53.3 | 52.5 | 51| 94| 11| 0|.........| 0| 0.09| 0.0| 30.16| 29.83|30.021| 0.5| 0.3| 71| 16| W| 10|299| 17 |
|15| 58.0 | 33.1 | 45.5 | 48.5 | 39| 73| 19| 0|.........| 0| 0.23| 0.0| 30.33| 29.82|30.067| 5.7| 5.5|320| 32| NW| 18|327| 145 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|16| 53.1 | 27.9 | 40.5 | 38.7 | 23| 57| 24| 0|.........| 0| 0.00| 0.0| 30.43| 30.32|30.356| 0.8| 0.6|349| 13| NW| 6|323| 155 |
|17| 57.8 | 29.0 | 43.4 | 43.7 | 29| 60| 21| 0|.........| 0| 0.00| 0.0| 30.40| 30.17|30.289| 0.3| 0.3|245| 12| SW| 3|234| 114 |
|18| 76.5 | 41.6 | 59.0 | 58.0 | 46| 68| 5| 0|.........| 0| 0.00| 0.0| 30.18| 30.04|30.118| 1.1| 1.1|235| 16| W| 8|243| 146 |
|19| 68.4 | 44.5 | 56.5 | 57.4 | 54| 87| 8| 0|.........| 0| 0.00| 0.0| 30.13| 29.90|30.027| 0.2| 0.2|236| 7|SSW| 3|226| 57 |
|20| 75.3 | 45.5 | 60.4 | 61.7 | 43| 57| 4| 0|.........| 0| 0.00| 0.0| 29.94| 29.83|29.886| 3.2| 2.8|279| 20|WNW| 12|283| 151 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|21| 76.3 | 37.6 | 57.0 | 56.6 | 38| 55| 8| 0|.........| 0| 0.00| 0.0| 29.91| 29.68|29.810| 0.8| 0.7|239| 15| SW| 5|230| 124 |
|22| 68.8 | 33.5 | 51.2 | 54.3 | 36| 56| 13| 0|.........| 0| 0.00| 0.0| 30.38| 29.67|29.983| 6.3| 6.0|306| 33|WNW| 19|297| 150 |
|23| 56.6 | 24.1*| 40.3*| 39.1 | 19| 50| 24| 0|.........| 0| 0.00| 0.0| 30.44| 30.24|30.329| 0.6| 0.4|246| 12| S| 5|222| 156 |
|24| 60.5 | 25.8 | 43.2 | 41.9 | 22| 49| 21| 0|.........| 0| 0.00| 0.0| 30.31| 30.17|30.230| 0.1| 0.1|163| 6|WSW| 2|232| 150 |
|25| 66.0 | 29.5 | 47.8 | 47.1 | 34| 62| 17| 0|.........| 0| 0.00| 0.0| 30.19| 29.86|30.045| 0.8| 0.5|245| 13| S| 5|236| 130 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|26| 57.2 | 32.4 | 44.8 | 49.2 | 38| 66| 20| 0|.........| 0| 0.00| 0.0| 30.05| 29.75|29.912| 3.6| 3.3|309| 28| N| 16|314| 141 |
|27| 59.9 | 26.6 | 43.3 | 43.3 | 35| 74| 21| 0|.........| 0| 0.04| 0.0| 30.07| 29.77|29.929| 0.9| 0.4|308| 13|NNW| 9|333| 136 |
|28| 59.6 | 36.6 | 48.1 | 48.9 | 29| 50| 16| 0|.........| 0| 0.01| 0.0| 30.20| 29.89|30.082| 3.0| 2.8|325| 22| N| 15|334| 141 |
|29| 60.7 | 27.9 | 44.3 | 42.7 | 27| 58| 20| 0|.........| 0| 0.00| 0.0| 30.22| 30.01|30.116| 0.3| 0.2| 88| 7|ENE| 3|100| 145 |
|30| 72.1 | 36.5 | 54.3 | 51.6 | 27| 46| 10| 0|.........| 0| 0.00| 0.0| 30.11| 29.98|30.033| 0.9| 0.9|280| 13|NNW| 6|316| 155 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|31| 74.2 | 40.5 | 57.3 | 52.3 | 28| 42| 7| 0|.........| 0| 0.00| 0.0| 30.43| 29.97|30.119| 1.8| 0.7| 22| 16| NW| 10|329| 153 |
+--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- |
+------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+
|2081.7|1215.0|------|------|---|----| 377| 25| Days | 1.16| 0.0| 30.59| 29.67|30.076| 1.6| 0.8|306| 33|WNW| 19|297| ---- |
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg |
+------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+
| 67.2| 39.2| 53.2 | 52.9 | 40|67.5|----|----|>.01 Inch 9|44.69| 0.0| 3 | 22 |------|----|----|---| 22 | 22 | 114|
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+
| | 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 | 596|3003|Thunder 1|Precipitation | Snow, Ice Plts | and Date |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+
| >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 1| 0.73| 11-12| 0.0 | - | 0 | - |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+
| 0 | 0 | 9 | 0 |----|----| Clear 26 Partly Cloudy 2 Cloudy 3 |
+--------+---------+--------+--------+----+----+------------------------------------------+
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 2007: 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|30.10| 0.00| 64| 61| 89|21| 1| 6| 0|29.93| 0.00| 70| 67| 89|25| 2| 7| 0|30.43| 0.00| 47| 33| 57|05| 1| 7|
|04| 0|30.05| 0.00| 64| 62| 94|32| 2| 7| 0|29.92| 0.00| 69| 67| 93|23| 3| 14| 0|30.49| 0.00| 41| 28| 59|03| 1| 5|
|07| 0|30.04| 0.00| 63| 62| 96|25| 1| 8| 0|29.98| 0.00| 69| 67| 92|23| 2| 9| 0|30.54| 0.00| 38| 27| 63|03| 1| 7|
|10| 39|30.02| 0.00| 66| 65| 97|26| 3| 9| 216|30.09| 0.00| 73| 68| 83|21| 1| 5| 429|30.58| 0.00| 48| 27| 44|06| 2| 10|
|13| 67|29.94| 0.00| 70| 66| 86|26| 2| 7| 316|30.07| 0.00| 82| 54| 38|33| 8| 20| 638|30.50| 0.00| 58| 23| 26|03| 1| 7|
|16| 65|29.89| 0.00| 73| 66| 78|23| 1| 9| 120|30.11| 0.00| 78| 45| 32|31| 2| 9| 294|30.41| 0.00| 59| 19| 21|05| 1| 5|
|19| 0|29.92| 0.00| 71| 65| 80|27| 1| 3| 0|30.22| 0.00| 66| 44| 45|04| 1| 3| 0|30.42| 0.00| 47| 24| 40|05| 0| 0|
|22| 0|29.94| 0.00| 70| 65| 84|24| 2| 7| 0|30.37| 0.00| 57| 39| 51|06| 4| 12| 0|30.38| 0.00| 39| 24| 54|05| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 4 | DEC 5 | DEC 6 |
| | | |
|01| 0|30.32| 0.00| 34| 26| 73|05| 0| 0| 0|29.85| 0.00| 47| 35| 64|23| 0| 2| 0|30.00| 0.00| 53| 40| 63|04| 1| 5|
|04| 0|30.26| 0.00| 31| 25| 80|05| 0| 0| 0|29.84| 0.00| 43| 35| 72|25| 0| 0| 0|30.01| 0.00| 46| 38| 73|06| 1| 4|
|07| 0|30.23| 0.00| 33| 29| 88|05| 0| 0| 0|29.86| 0.00| 41| 35| 80|24| 0| 0| 0|30.03| 0.00| 41| 35| 80|02| 0| 4|
|10| 410|30.21| 0.00| 54| 29| 37|22| 3| 10| 401|29.90| 0.00| 62| 44| 51|25| 0| 4| 381|30.07| 0.00| 52| 40| 64|07| 0| 1|
|13| 615|30.06| 0.00| 69| 34| 27|24| 1| 10| 608|29.85| 0.00| 77| 41| 28|11| 0| 2| 592|29.95| 0.00| 69| 50| 51|20| 1| 4|
|16| 274|29.95| 0.00| 71| 35| 27|22| 3| 11| 272|29.85| 0.00| 76| 39| 26|08| 0| 3| 250|29.88| 0.00| 73| 56| 56|23| 4| 14|
|19| 0|29.95| 0.00| 58| 33| 38|23| 0| 0| 0|29.92| 0.00| 64| 41| 43|04| 0| 0| 0|29.90| 0.00| 65| 55| 71|20| 0| 3|
|22| 0|29.88| 0.00| 53| 33| 47|21| 0| 4| 0|29.98| 0.00| 57| 40| 54|05| 0| 2| 0|29.92| 0.00| 65| 60| 85|24| 1| 6|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 7 | DEC 8 | DEC 9 |
| | | |
|01| 0|29.91| 0.00| 66| 63| 90|22| 3| 7| 0|29.95| 0.00| 70| 68| 93|24| 2| 5| 0|29.99| 0.00| 71| 68| 89|28| 2| 6|
|04| 0|29.91| 0.00| 67| 64| 91|22| 2| 9| 0|29.95| 0.00| 69| 67| 93|23| 1| 4| 0|30.00| 0.00| 71| 68| 91|25| 1| 5|
|07| 0|29.92| 0.00| 66| 65| 95|21| 2| 4| 0|29.98| 0.00| 69| 66| 93|22| 0| 3| 0|30.03| 0.00| 70| 68| 92|16| 0| 4|
|10| 118|29.97| 0.00| 68| 66| 95|22| 2| 7| 142|30.04| 0.00| 71| 69| 92|24| 1| 6| 179|30.10| 0.00| 73| 69| 87|16| 0| 6|
|13| 313|29.92| 0.00| 75| 63| 66|22| 3| 9| 244|29.97| 0.00| 80| 64| 59|26| 4| 10| 125|30.08| 0.00| 66| 55| 67|06| 5| 11|
|16| 195|29.88| 0.00| 77| 63| 63|22| 2| 7| 169|29.93| 0.00| 80| 64| 59|31| 2| 6| 118|30.11| 0.00| 50| 46| 85|05| 2| 8|
|19| 0|29.91| 0.00| 69| 61| 76|25| 0| 0| 0|29.95| 0.00| 75| 66| 74|35| 1| 6| 0|30.18| 0.00| 44| 42| 93|04| 2| 9|
|22| 0|29.94| 0.00| 68| 65| 91|20| 1| 4| 0|29.99| 0.00| 72| 67| 84|23| 1| 5| 0|30.21| 0.00| 40| 39| 94|05| 3| 7|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 10 | DEC 11 | DEC 12 |
| | | |
|01| 0|30.23| 0.00| 39| 37| 95|04| 2| 7| 0|30.03| 0.00| 48| 47| 99|06| 0| 1| 0|30.12| 0.00| 53| 51| 94|06| 3| 10|
|04| 0|30.21| 0.00| 38| 37| 96|35| 1| 6| 0|29.96| 0.00| 50| 50| 99|07| 0| 0| 0|30.13| 0.00| 47| 44| 90|06| 2| 10|
|07| 0|30.23| 0.00| 38| 37| 96|05| 2| 6| 0|29.96| 0.00| 65| 65|100|23| 1| 5| 0|30.19| 0.00| 44| 42| 94|07| 4| 10|
|10| 77|30.24| 0.00| 41| 40| 97|03| 1| 5| 53|30.01| 0.00| 69| 69|100|20| 0| 6| 46|30.26| 0.00| 42| 40| 95|06| 3| 9|
|13| 79|30.16| 0.00| 44| 43| 98|04| 0| 3| 105|29.94| 0.00| 75| 69| 81|24| 2| 11| 44|30.20| 0.00| 42| 40| 95|07| 1| 7|
|16| 39|30.09| 0.00| 46| 45| 98|06| 1| 5| 181|29.94| 0.00| 77| 68| 74|26| 1| 6| 28|30.17| 0.00| 41| 40| 95|04| 1| 6|
|19| 0|30.07| 0.00| 45| 45| 98|04| 2| 5| 0|29.98| 0.00| 74| 68| 83|31| 0| 2| 0|30.19| 0.00| 41| 39| 95|04| 2| 6|
|22| 0|30.09| 0.00| 46| 45| 98|13| 0| 4| 0|30.09| 0.00| 59| 57| 92|05| 3| 7| 0|30.23| 0.00| 41| 40| 95|34| 2| 10|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 13 | DEC 14 | DEC 15 |
| | | |
|01| 0|30.22| 0.00| 40| 38| 92|33| 1| 4| 0|30.15| 0.00| 51| 46| 84|07| 1| 3| 0|29.85| 0.00| 57| 56| 98|29| 1| 3|
|04| 0|30.21| 0.00| 40| 37| 91|30| 0| 4| 0|30.10| 0.00| 50| 46| 87|09| 0| 2| 0|29.85| 0.09| 55| 55| 98|22| 1| 4|
|07| 0|30.25| 0.00| 37| 34| 91|30| 0| 0| 0|30.11| 0.00| 49| 46| 91|06| 1| 3| 0|29.95| 0.00| 53| 52| 98|02| 2| 15|
|10| 359|30.28| 0.00| 46| 39| 77|05| 1| 5| 62|30.09| 0.00| 51| 50| 96|09| 1| 3| 220|30.07| 0.00| 50| 42| 72|33| 8| 20|
|13| 580|30.20| 0.00| 57| 45| 63|00| 1| 4| 74|30.01| 0.00| 53| 52| 97|10| 0| 3| 633|30.07| 0.00| 53| 35| 51|32| 15| 22|
|16| 128|30.16| 0.00| 57| 46| 66|08| 1| 4| 16|29.94| 0.00| 55| 54| 97|11| 0| 1| 243|30.12| 0.00| 49| 27| 42|31| 10| 19|
|19| 0|30.17| 0.00| 54| 46| 75|09| 0| 1| 0|29.93| 0.00| 55| 54| 98|11| 0| 0| 0|30.23| 0.00| 41| 26| 54|34| 6| 15|
|22| 0|30.17| 0.00| 52| 46| 79|08| 0| 3| 0|29.83| 0.00| 55| 55| 98|09| 3| 6| 0|30.31| 0.00| 36| 26| 67|31| 3| 7|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 16 | DEC 17 | DEC 18 |
| | | |
|01| 0|30.33| 0.00| 33| 26| 75|32| 5| 10| 0|30.33| 0.00| 30| 24| 78|11| 0| 0| 0|30.17| 0.00| 50| 43| 76|19| 0| 2|
|04| 0|30.33| 0.00| 31| 25| 76|31| 2| 6| 0|30.33| 0.00| 31| 25| 80|11| 0| 0| 0|30.14| 0.00| 46| 40| 80|20| 0| 0|
|07| 0|30.35| 0.00| 29| 23| 78|35| 0| 2| 0|30.35| 0.00| 30| 25| 83|11| 0| 0| 0|30.17| 0.00| 43| 40| 89|18| 0| 0|
|10| 381|30.42| 0.00| 42| 26| 53|03| 1| 4| 327|30.38| 0.00| 45| 31| 59|04| 0| 3| 366|30.16| 0.00| 62| 52| 70|22| 4| 13|
|13| 628|30.37| 0.00| 51| 20| 30|09| 2| 3| 654|30.29| 0.00| 56| 23| 28|09| 1| 5| 596|30.08| 0.00| 74| 52| 46|23| 4| 11|
|16| 220|30.34| 0.00| 51| 19| 28|06| 0| 2| 105|30.21| 0.00| 57| 23| 27|23| 1| 4| 105|30.05| 0.00| 75| 47| 38|23| 4| 8|
|19| 0|30.34| 0.00| 42| 25| 51|11| 0| 2| 0|30.23| 0.00| 51| 33| 50|22| 0| 1| 0|30.09| 0.00| 62| 47| 58|24| 0| 0|
|22| 0|30.36| 0.00| 34| 24| 67|11| 0| 0| 0|30.19| 0.00| 50| 37| 62|27| 0| 1| 0|30.11| 0.00| 53| 46| 77|24| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Precipitation | 0.14 | 0.24 | 0.26 | 0.28 | 0.33 | 0.39 | 0.43 | 0.43 | 0.43 | 0.43 | 0.44 | 0.49 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Date | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Time | 2010 | 2015 | 2015 | 2015 | 2015 | 2037 | 2037 | 2037 | 2037 | 2037 | 2211 | 2230 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
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 2007: 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|30.09| 0.00| 49| 45| 86|05| 0| 1| 0|29.88| 0.00| 65| 64| 95|22| 2| 6| 0|29.89| 0.00| 43| 34| 70|30| 0| 0|
|04| 0|30.09| 0.00| 47| 44| 89|26| 0| 0| 0|29.86| 0.00| 63| 62| 96|24| 4| 8| 0|29.88| 0.00| 41| 34| 77|30| 0| 1|
|07| 0|30.11| 0.00| 45| 42| 91|04| 0| 0| 0|29.89| 0.00| 54| 52| 92|25| 2| 7| 0|29.89| 0.00| 38| 33| 81|25| 0| 0|
|10| 316|30.13| 0.00| 58| 55| 89|21| 0| 2| 362|29.92| 0.00| 64| 37| 37|27| 8| 15| 216|29.90| 0.00| 60| 39| 45|22| 3| 11|
|13| 144|30.01| 0.00| 67| 60| 78|24| 2| 7| 612|29.86| 0.00| 73| 34| 24|32| 6| 16| 666|29.81| 0.00| 73| 35| 25|26| 2| 10|
|16| 42|29.94| 0.00| 66| 61| 83|03| 0| 2| 197|29.85| 0.00| 72| 31| 22|31| 5| 17| 158|29.73| 0.00| 75| 37| 26|22| 2| 10|
|19| 0|29.94| 0.00| 64| 61| 89|12| 0| 1| | | | | | | | | | 0|29.73| 0.00| 64| 41| 44|04| 0| 2|
|22| 0|29.93| 0.00| 62| 59| 91|31| 0| 0| 0|29.93| 0.00| 49| 36| 60|30| 0| 1| 0|29.69| 0.00| 60| 49| 68|23| 0| 2|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 22 | DEC 23 | DEC 24 |
| | | |
|01| 0|29.69| 0.00| 58| 53| 83|23| 1| 3| 0|30.38| 0.00| 32| 21| 64|33| 0| 3| 0|30.24| 0.00| 34| 21| 60|22| 0| 0|
|04| 0|29.75| 0.00| 59| 56| 90|24| 2| 10| 0|30.37| 0.00| 28| 20| 70|32| 0| 3| 0|30.24| 0.00| 29| 20| 70|22| 0| 0|
|07| 0|29.82| 0.00| 53| 50| 89|01| 0| 1| 0|30.42| 0.00| 24| 19| 79|32| 0| 0| 0|30.28| 0.00| 26| 20| 78|22| 0| 0|
|10| 362|29.91| 0.00| 65| 33| 30|27| 6| 10| 385|30.43| 0.00| 42| 21| 43|23| 0| 1| 380|30.30| 0.00| 48| 27| 44|24| 0| 3|
|13| 615|29.93| 0.00| 67| 27| 22|25| 14| 25| 628|30.32| 0.00| 55| 17| 22|22| 3| 8| 577|30.21| 0.00| 60| 24| 25|24| 1| 3|
|16| 246|30.07| 0.00| 57| 33| 40|32| 13| 25| 118|30.24| 0.00| 55| 18| 24|24| 2| 9| 123|30.18| 0.00| 58| 20| 22|06| 1| 2|
|19| 0|30.24| 0.00| 44| 25| 47|32| 8| 17| 0|30.25| 0.00| 43| 21| 41|22| 0| 0| 0|30.21| 0.00| 48| 22| 35|11| 0| 0|
|22| 0|30.34| 0.00| 37| 22| 54|33| 11| 20| 0|30.25| 0.00| 38| 21| 50|22| 0| 2| 0|30.20| 0.00| 37| 22| 54|11| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 25 | DEC 26 | DEC 27 |
| | | |
|01| 0|30.18| 0.00| 32| 23| 70|11| 0| 0| 0|29.84| 0.00| 51| 41| 67|17| 0| 3| 0|30.03| 0.00| 30| 26| 82|05| 0| 0|
|04| 0|30.16| 0.00| 30| 24| 79|11| 0| 0| 0|29.75| 0.00| 52| 46| 79|16| 1| 4| 0|30.03| 0.00| 28| 24| 86|05| 0| 0|
|07| 0|30.16| 0.00| 33| 28| 81|11| 0| 0| 0|29.79| 0.00| 50| 47| 87|06| 0| 0| 0|30.05| 0.00| 27| 24| 89|05| 0| 1|
|10| 155|30.16| 0.00| 48| 37| 66|21| 1| 5| 218|29.90| 0.00| 54| 46| 73|31| 13| 21| 360|30.02| 0.00| 41| 35| 78|08| 2| 7|
|13| 605|30.03| 0.00| 63| 40| 44|22| 4| 10| 599|29.96| 0.00| 56| 34| 44|30| 10| 22| 596|29.90| 0.00| 54| 34| 47|09| 1| 5|
|16| 151|29.94| 0.00| 66| 36| 34|22| 1| 7| 292|29.96| 0.00| 54| 32| 43|31| 10| 18| 118|29.78| 0.00| 59| 39| 48|28| 1| 10|
|19| 0|29.91| 0.00| 54| 37| 53|09| 1| 4| 0|30.01| 0.00| 44| 31| 62|02| 0| 4| 0|29.78| 0.00| 53| 45| 73|00| 2| 6|
|22| 0|29.89| 0.00| 48| 38| 67|21| 0| 2| 0|30.04| 0.00| 37| 29| 75|05| 0| 0| 0|29.88| 0.00| 52| 48| 86|34| 2| 9|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 28 | DEC 29 | DEC 30 |
| | | |
|01| 0|29.90| 0.00| 51| 49| 94|33| 0| 0| 0|30.17| 0.00| 35| 24| 64|02| 0| 0| 0|30.02| 0.00| 37| 31| 79|21| 0| 0|
|04| 0|29.97| 0.00| 49| 38| 66|32| 4| 10| 0|30.17| 0.00| 32| 25| 76|02| 0| 3| 0|30.03| 0.00| 40| 34| 78|27| 0| 1|
|07| 0|30.06| 0.00| 44| 25| 48|29| 5| 12| 0|30.19| 0.00| 29| 23| 79|03| 0| 0| 0|30.07| 0.00| 40| 30| 68|28| 0| 0|
|10| 381|30.13| 0.00| 52| 23| 32|33| 9| 19| 348|30.21| 0.00| 43| 32| 65|07| 1| 3| 378|30.11| 0.00| 58| 29| 32|31| 4| 7|
|13| 598|30.10| 0.00| 58| 24| 26|31| 9| 15| 592|30.09| 0.00| 56| 29| 35|08| 1| 5| 621|30.04| 0.00| 71| 22| 16|31| 3| 9|
|16| 264|30.09| 0.00| 57| 23| 27|35| 2| 15| 234|30.01| 0.00| 59| 26| 28|17| 0| 4| 292|29.99| 0.00| 69| 23| 18|23| 3| 6|
|19| 0|30.16| 0.00| 45| 25| 45|02| 0| 1| 0|30.05| 0.00| 50| 29| 45|22| 0| 0| 0|30.00| 0.00| 55| 22| 28|23| 0| 0|
|22| 0|30.19| 0.00| 40| 25| 55|02| 0| 0| 0|30.07| 0.00| 40| 29| 64|21| 0| 0| 0|30.02| 0.00| 44| 24| 44|23| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| DEC 31 | | |
| | | |
|01| 0|29.99| 0.00| 44| 28| 53|21| 1| 3| | |
|04| 0|29.98| 0.00| 45| 28| 51|20| 0| 0| | |
|07| 0|30.03| 0.00| 45| 37| 74|22| 0| 4| | |
|10| 367|30.06| 0.00| 64| 39| 39|23| 3| 7| | |
|13| 613|30.05| 0.00| 70| 29| 21|34| 4| 13| | |
|16| 287|30.13| 0.00| 61| 27| 27|04| 4| 10| | |
|19| 0|30.26| 0.00| 49| 19| 31|04| 0| 3| | |
|22| 0|30.39| 0.00| 44| 18| 35|03| 3| 7| | |
+--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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|30.066| 48| 41| 78| 0.9| 29 | 0.3|
|04| 0|30.059| 46| 40| 80| 0.8| 28 | 0.4|
|07| 0|30.090| 45| 40| 84| 0.7| 30 | 0.2|
|10| 278|30.126| 56| 42| 64| 2.6| 29 | 1.4|
|13| 473|30.063| 64| 39| 46| 3.6| 30 | 2.2|
|16| 179|30.036| 63| 38| 46| 2.6| 31 | 1.4|
|19| 0|30.082| 54| 38| 59| 0.8| 36 | 0.6|
|22| 0|30.109| 49| 38| 68| 1.4| 01 | 0.8|
+--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
December 2007: 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| | | | | | | | | | | | | |0.01| | | | | | | | | | |09
10| | |0.01| | | | | | | | | | | | | | | | |0.01| | | |0.01|10
| | | | | | | | | | | | | | | | | | | | | | | | |
11| | | | |0.01| | | | | | | | | | | | | | |0.08|0.35| |0.07|0.01|11
12| | | | |0.01|0.02| | |0.02| | |0.01| |0.01|0.02|0.01|0.10|0.02| | | | | | |12
13| | | | | | | | | | | |0.01| | | | | | | | | | | | |13
14| | | | | | | | | | |0.02|0.01|0.02| |0.01| |0.02| | |0.01| | | | |14
15|0.01| | |0.22| | | | | | | | | | | | | | | | | | | | |15
| | | | | | | | | | | | | | | | | | | | | | | | |
16| | | | | | | | | | | | | | | | | | | | | | | | |16
17| | | | | | | | | | | | | | | | | | | | | | | | |17
18| | | | | | | | | | | | | | | | | | | | | | | | |18
19| | | | | | | | | | | | | | | | | | | | | | | | |19
20| | | | | | | | | | | | | | | | | | | | | | | | |20
| | | | | | | | | | | | | | | | | | | | | | | | |
21| | | | | | | | | | | | | | | | | | | | | | | | |21
22| | | | | | | | | | | | | | | | | | | | | | | | |22
23| | | | | | | | | | | | | | | | | | | | | | | | |23
24| | | | | | | | | | | | | | | | | | | | | | | | |24
25| | | | | | | | | | | | | | | | | | | | | | | | |25
| | | | | | | | | | | | | | | | | | | | | | | | |
26| | | | | | | | | | | | | | | | | | | | | | | | |26
27| | | | | | | | | |0.01| | | | | | | | | | | | |0.03| |27
28| | | | | | | | | |0.01| | | | | | | | | | | | | | |28
29| | | | | | | | | | | | | | | | | | | | | | | | |29
30| | | | | | | | | | | | | | | | | | | | | | | | |30
31| | | | | | | | | | | | | | | | | | | | | | | | |31
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
Sum|0.01|0.00|0.01|0.22|0.02|0.02|0.00|0.00|0.02|0.02|0.02|0.03|0.02|0.02|0.03|0.01|0.12|0.02|0.00|0.10|0.35|0.00|0.10|0.02|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.)