LOCAL CLIMATOLOGICAL DATA
Monthly Summary
January 2009
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| 70.6 | 35.0 | 52.8 | 52.5 | 41| 65| 12| 0|.........| 0| 0.00| 0.0| 30.19| 29.88|30.014| 1.1| 1.1|231| 17| S| 7|224| 134 |
|02| 78.8 | 48.6 | 63.7 | 61.2 | 55| 82| 1| 0|.........| 0| 0.01| 0.0| 29.92| 29.76|29.845| 0.9| 0.8|234| 11| S| 4|212| 132 |
|03| 85.5*| 62.6 | 74.1*| 71.5 | 61| 72| 0| 10|.........| 0| 0.00| 0.0| 29.79| 29.67|29.736| 2.0| 2.0|227| 17| S| 9|218| 140 |
|04| 65.8 | 40.5 | 53.2 | 49.4 | 36| 62| 11| 0|1........| 0| 0.00| 0.0| 30.27| 29.79|30.070| 2.6| 2.3| 48| 21|NNW| 8|321| 44 |
|05| 41.3 | 33.7 | 37.5 | 36.6 | 30| 76| 27| 0|.........| 0| 0.12| 0.0| 30.26| 29.87|30.105| 1.3| 0.9| 11| 12| N| 6|326| 22 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|06| 69.3 | 39.6 | 54.5 | 51.0 | 37| 65| 10| 0|.........| 0| 0.42| 0.0| 29.92| 29.62|29.769| 2.9| 2.4|264| 25|WNW| 13|267| 127 |
|07| 76.1 | 34.3 | 55.2 | 53.0 | 27| 42| 10| 0|.........| 0| 0.00| 0.0| 29.94| 29.79|29.881| 1.7| 1.6|248| 19| SW| 11|276| 155 |
|08| 83.0 | 41.1 | 62.0 | 60.6 | 34| 42| 3| 0|.........| 0| 0.00| 0.0| 29.99| 29.87|29.915| 0.7| 0.6|245| 12| SW| 6|252| 154 |
|09| 81.8 | 62.3 | 72.1 | 69.9 | 61| 75| 0| 7|.........| 0| 0.00| 0.0| 29.92| 29.79|29.864| 2.8| 2.8|229| 26| SW| 11|235| 113 |
|10| 67.8 | 41.8 | 54.8 | 50.7 | 32| 51| 10| 0|.........| 0| 0.03| 0.0| 30.38| 29.87|30.183| 3.4| 2.6| 18| 22|WNW| 12|331| 129 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|11| 59.9 | 32.9 | 46.4 | 45.0 | 20| 40| 18| 0|.........| 0| 0.00| 0.0| 30.44| 30.27|30.346| 1.0| 1.0| 46| 11|NNE| 4| 60| 161 |
|12| 67.3 | 28.7 | 48.0 | 47.0 | 23| 46| 17| 0|.........| 0| 0.00| 0.0| 30.29| 30.08|30.197| 0.7| 0.2|252| 14|WNW| 6|340| 159 |
|13| 53.8 | 34.4 | 44.1 | 43.8 | 16| 34| 21| 0|.........| 0| 0.00| 0.0| 30.52| 30.29|30.385| 1.3| 1.2| 29| 18| NW| 8|325| 161 |
|14| 65.8 | 27.3 | 46.6 | 45.3 | 18| 38| 18| 0|.........| 0| 0.00| 0.0| 30.34| 30.21|30.279| 0.4| 0.4|232| 10|WSW| 4|234| 159 |
|15| 53.2 | 31.9 | 42.5 | 42.1 | 25| 52| 22| 0|.........| 0| 0.00| 0.0| 30.63| 30.33|30.483| 1.8| 1.8| 57| 12|ENE| 6| 64| 110 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|16| 47.4 | 32.2 | 39.8 | 41.2 | 24| 50| 25| 0|.........| 0| 0.00| 0.0| 30.72| 30.45|30.598| 0.7| 0.6| 66| 13| E| 5| 51| 78 |
|17| 69.4 | 44.6 | 57.0 | 55.8 | 44| 66| 8| 0|.........| 0| 0.00| 0.0| 30.45| 30.19|30.291| 1.4| 1.4|231| 15| SW| 7|228| 72 |
|18| 76.0 | 44.5 | 60.3 | 58.6 | 32| 46| 4| 0|.........| 0| 0.00| 0.0| 30.30| 30.08|30.193| 2.8| 2.7|315| 21| NW| 12|312| 157 |
|19| 70.1 | 42.5 | 56.3 | 57.8 | 23| 27| 8| 0|.........| 0| 0.00| 0.0| 30.10| 29.98|30.034| 3.3| 2.3|328| 26| NW| 14|331| 163 |
|20| 62.4 | 36.0 | 49.2 | 49.2 | 21| 36| 16| 0|.........| 0| 0.00| 0.0| 30.33| 30.07|30.225| 1.7| 1.5| 15| 20|NNW| 12|330| 169 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|21| 76.5 | 30.3 | 53.4 | 52.6 | 21| 34| 11| 0|.........| 0| 0.00| 0.0| 30.28| 30.05|30.163| 1.3| 1.3|229| 13|SSW| 6|222| 170 |
|22| 80.3 | 38.3 | 59.3 | 61.5 | 30| 34| 6| 0|.........| 0| 0.00| 0.0| 30.10| 29.96|30.019| 2.1| 2.0|230| 18| S| 9|232| 168 |
|23| 82.4 | 56.6 | 69.5 | 67.6 | 53| 63| 0| 5|.........| 0| 0.00| 0.0| 30.05| 29.92|29.977| 2.6| 2.6|226| 15| S| 7|220| 133 |
|24| 64.0 | 36.0 | 50.0 | 41.6 | 25| 52| 15| 0|.........| 0| 0.00| 0.0| 30.38| 30.00|30.275| 2.9| 2.8| 29| 20| W| 8|347| 74 |
|25| 61.2 | 36.2 | 48.7 | 47.4 | 33| 59| 16| 0|.........| 0| 0.00| 0.0| 30.27| 30.07|30.149| 0.3| 0.2|241| 11| SW| 2|245| 89 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|26| 64.2 | 50.5 | 57.3 | 56.3 | 54| 94| 7| 0|.2.......| 0| 0.02| 0.0| 30.10| 29.94|30.023| 0.5| 0.1|189| 11| W| 4|253| 28 |
|27| 64.7 | 30.4 | 47.5 | 43.7 | 41| 92| 17| 0|...4.6...| 0| 0.03| 0.0| 30.23| 29.97|30.086| 2.4| 1.7| 12| 19|NNW| 10|319| 18 |
|28| 49.1 | 25.8*| 37.4*| 36.2 | 28| 74| 27| 0|...4.6...| 0| 0.10| 0.0| 30.36| 30.14|30.223| 0.6| 0.4| 2| 15| NW| 8|318| 176 |
|29| 57.2 | 26.3 | 41.8 | 40.2 | 29| 67| 23| 0|.........| 0| 0.00| 0.0| 30.39| 30.15|30.245| 0.8| 0.8| 58| 11| N| 4| 56| 170 |
|30| 69.8 | 27.6 | 48.7 | 47.7 | 23| 47| 16| 0|.........| 0| 0.00| 0.0| 30.49| 30.35|30.402| 0.4| 0.4|253| 11|SSW| 4|247| 181 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|31| 73.5 | 34.7 | 54.1 | 53.2 | 22| 35| 10| 0|.........| 0| 0.00| 0.0| 30.35| 30.05|30.226| 1.5| 1.5|233| 17|SSW| 7|225| 180 |
+--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- |
+------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+
|2088.2|1187.2|------|------|---|----| 389| 22| Days | 0.73| 0.0| 30.72| 29.62|30.135| 1.6| 0.4|306| 26| SW| 14|331| ---- |
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg |
+------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+
| 67.4| 38.3| 52.8 | 51.3 | 33|55.5|----|----|>.01 Inch 7| 0.73| T | 16 | 6 |------|----|----|---| 9+ | 19 | 127|
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+
| | 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 | 983| 22|Thunder 0|Precipitation | Snow, Ice Plts | and Date |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+
| >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 1| 0.42| 6 | 0.0 | - | 0 | - |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+
| 0 | 0 | 9 | 0 |----|----| Clear 25 Partly Cloudy 1 Cloudy 5 |
+--------+---------+--------+--------+----+----+------------------------------------------+
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
January 2009: 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 |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 1 | JAN 2 | JAN 3 |
| | | |
|01| 0|30.16| 0.00| 41| 26| 55|05| 0| 0| 0|29.89| 0.00| 53| 50| 89|21| 1| 3| 0|29.75| 0.00| 64| 62| 94|23| 2| 9|
|04| 0|30.12| 0.00| 37| 27| 67|05| 0| 0| 0|29.88| 0.00| 49| 47| 90|20| 0| 0| 0|29.73| 0.00| 65| 64| 94|23| 2| 5|
|07| 0|30.10| 0.00| 36| 29| 76|29| 0| 0| 0|29.89| 0.00| 50| 48| 93|20| 0| 2| 0|29.74| 0.00| 64| 62| 94|22| 0| 3|
|10| 345|30.09| 0.00| 55| 38| 54|23| 1| 5| 338|29.91| 0.00| 65| 58| 79|22| 2| 9| 338|29.78| 0.00| 73| 62| 70|21| 5| 16|
|13| 578|29.98| 0.00| 69| 46| 45|24| 4| 11| 580|29.83| 0.00| 75| 59| 58|23| 1| 7| 570|29.70| 0.00| 84| 59| 43|22| 4| 14|
|16| 179|29.90| 0.00| 67| 54| 62|22| 5| 15| 269|29.79| 0.00| 71| 61| 70|23| 4| 10| 209|29.68| 0.00| 82| 58| 45|23| 4| 10|
|19| 0|29.90| 0.00| 60| 52| 73|21| 0| 2| 0|29.79| 0.00| 64| 59| 86|27| 1| 5| 0|29.72| 0.00| 72| 58| 60|20| 0| 1|
|22| 0|29.89| 0.00| 55| 49| 82|23| 0| 2| 0|29.79| 0.00| 63| 61| 92|21| 4| 9| 0|29.77| 0.00| 68| 59| 72|22| 1| 4|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 4 | JAN 5 | JAN 6 |
| | | |
|01| 0|29.79| 0.00| 64| 61| 88|22| 0| 2| 0|30.23| 0.00| 41| 23| 49|04| 3| 6| 0|29.87| 0.00| 40| 35| 81|26| 1| 4|
|04| 0|29.83| 0.00| 64| 62| 94|20| 0| 5| 0|30.21| 0.00| 38| 27| 65|05| 1| 6| 0|29.78| 0.00| 40| 38| 91|26| 0| 4|
|07| 0|29.99| 0.00| 47| 37| 67|06| 4| 9| 0|30.21| 0.00| 35| 30| 82|05| 1| 5| 0|29.78| 0.14| 41| 39| 93|23| 0| 5|
|10| 113|30.15| 0.00| 41| 28| 61|34| 3| 13| 21|30.23| 0.00| 34| 29| 84|00| 2| 10| 98|29.77| 0.00| 45| 44| 95|23| 2| 5|
|13| 156|30.13| 0.00| 44| 27| 51|07| 3| 9| 95|30.11| 0.00| 36| 31| 84|35| 1| 11| 591|29.66| 0.00| 64| 50| 59|24| 3| 9|
|16| 81|30.14| 0.00| 47| 27| 46|05| 3| 10| 28|30.04| 0.00| 36| 31| 83|34| 1| 5| 130|29.65| 0.00| 66| 31| 27|25| 11| 23|
|19| 0|30.20| 0.00| 46| 26| 45|06| 2| 10| 0|29.98| 0.00| 37| 32| 81|33| 0| 2| 0|29.76| 0.00| 58| 33| 38|29| 4| 9|
|22| 0|30.25| 0.00| 44| 25| 47|06| 4| 12| 0|29.89| 0.00| 38| 32| 79|25| 1| 3| 0|29.88| 0.00| 50| 30| 45|33| 2| 9|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 7 | JAN 8 | JAN 9 |
| | | |
|01| 0|29.91| 0.00| 46| 26| 46|28| 0| 0| 0|29.88| 0.00| 45| 29| 53|28| 0| 0| 0|29.90| 0.00| 63| 59| 86|21| 2| 6|
|04| 0|29.93| 0.00| 36| 26| 66|23| 0| 0| 0|29.90| 0.00| 41| 29| 62|17| 0| 0| 0|29.88| 0.00| 64| 63| 94|24| 1| 9|
|07| 0|29.92| 0.00| 35| 28| 76|23| 0| 4| 0|29.93| 0.00| 41| 29| 62|22| 0| 0| 0|29.89| 0.00| 64| 63| 95|22| 2| 5|
|10| 178|29.94| 0.00| 58| 27| 30|23| 3| 7| 376|29.99| 0.00| 65| 33| 30|26| 2| 5| 128|29.92| 0.00| 69| 64| 83|22| 5| 15|
|13| 617|29.84| 0.00| 72| 29| 20|27| 6| 13| 619|29.92| 0.00| 82| 30| 15|26| 3| 12| 202|29.85| 0.00| 78| 59| 52|22| 5| 16|
|16| 276|29.79| 0.00| 73| 24| 16|25| 6| 14| 234|29.88| 0.00| 82| 31| 16|34| 0| 3| 227|29.79| 0.00| 80| 58| 47|22| 4| 14|
|19| 0|29.84| 0.00| 59| 24| 26|28| 0| 0| 0|29.91| 0.00| 67| 33| 28|19| 0| 0| 0|29.81| 0.00| 72| 58| 62|22| 1| 6|
|22| 0|29.89| 0.00| 49| 29| 45|28| 0| 0| 0|29.92| 0.00| 63| 47| 57|25| 1| 4| 0|29.88| 0.00| 68| 63| 84|23| 1| 9|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 10 | JAN 11 | JAN 12 |
| | | |
|01| 0|29.88| 0.00| 67| 65| 91|21| 5| 13| 0|30.37| 0.00| 41| 20| 43|02| 1| 6| 0|30.27| 0.00| 33| 22| 64|00| 0| 0|
|04| 0|30.00| 0.00| 56| 43| 61|02| 1| 9| 0|30.37| 0.00| 39| 20| 46|03| 2| 7| 0|30.23| 0.00| 30| 22| 73|00| 0| 0|
|07| 0|30.14| 0.00| 47| 35| 62|02| 1| 11| 0|30.41| 0.00| 36| 20| 52|06| 0| 4| 0|30.22| 0.00| 30| 23| 76|00| 0| 0|
|10| 153|30.27| 0.00| 49| 32| 52|05| 3| 14| 390|30.43| 0.00| 44| 21| 40|05| 1| 4| 379|30.23| 0.00| 54| 26| 34|22| 1| 6|
|13| 649|30.23| 0.00| 52| 26| 37|04| 3| 18| 635|30.35| 0.00| 58| 19| 22|35| 1| 6| 629|30.16| 0.00| 65| 24| 21|24| 2| 6|
|16| 218|30.23| 0.00| 52| 22| 31|03| 3| 14| 260|30.28| 0.00| 59| 19| 21|04| 2| 6| 267|30.09| 0.00| 67| 22| 18|22| 0| 3|
|19| 0|30.29| 0.00| 45| 21| 38|35| 3| 15| 0|30.28| 0.00| 50| 19| 29|08| 0| 0| 0|30.14| 0.00| 53| 20| 27|00| 0| 0|
|22| 0|30.34| 0.00| 43| 21| 41|04| 2| 7| 0|30.30| 0.00| 38| 22| 53|08| 0| 0| 0|30.24| 0.00| 45| 26| 46|33| 2| 9|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 13 | JAN 14 | JAN 15 |
| | | |
|01| 0|30.32| 0.00| 45| 27| 50|04| 1| 5| 0|30.29| 0.00| 33| 16| 50|07| 0| 0| 0|30.34| 0.00| 38| 23| 54|18| 0| 0|
|04| 0|30.39| 0.00| 44| 18| 35|04| 1| 6| 0|30.28| 0.00| 30| 17| 58|07| 0| 0| 0|30.36| 0.00| 34| 23| 64|18| 0| 0|
|07| 0|30.45| 0.00| 37| 15| 41|33| 1| 9| 0|30.29| 0.00| 28| 17| 65|07| 0| 1| 0|30.43| 0.00| 35| 26| 71|04| 1| 6|
|10| 388|30.51| 0.00| 43| 15| 32|32| 6| 15| 381|30.31| 0.00| 49| 20| 31|24| 1| 5| 197|30.51| 0.00| 44| 29| 56|05| 4| 11|
|13| 633|30.43| 0.00| 52| 14| 22|00| 4| 14| 628|30.25| 0.00| 63| 18| 17|22| 1| 6| 529|30.50| 0.00| 48| 27| 43|05| 2| 9|
|16| 283|30.34| 0.00| 53| 13| 20|32| 1| 5| 288|30.21| 0.00| 65| 18| 16|23| 1| 5| 188|30.49| 0.00| 53| 30| 42|06| 4| 9|
|19| 0|30.33| 0.00| 44| 13| 28|07| 0| 1| 0|30.25| 0.00| 53| 17| 24|18| 0| 0| 0|30.57| 0.00| 45| 23| 43|05| 3| 7|
|22| 0|30.34| 0.00| 36| 15| 41|07| 0| 0| 0|30.32| 0.00| 42| 20| 41|18| 0| 0| 0|30.61| 0.00| 43| 24| 47|06| 2| 6|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 16 | JAN 17 | JAN 18 |
| | | |
|01| 0|30.63| 0.00| 40| 23| 50|06| 3| 10| 0|30.43| 0.00| 45| 29| 54|21| 0| 2| 0|30.21| 0.00| 53| 49| 87|24| 0| 0|
|04| 0|30.64| 0.00| 35| 22| 59|02| 1| 4| 0|30.36| 0.00| 47| 34| 59|22| 1| 4| 0|30.23| 0.00| 51| 48| 91|33| 1| 5|
|07| 0|30.68| 0.00| 33| 21| 62|05| 1| 4| 0|30.36| 0.00| 48| 40| 73|22| 0| 2| 0|30.26| 0.00| 45| 37| 72|34| 2| 6|
|10| 209|30.71| 0.00| 37| 22| 55|09| 1| 3| 104|30.36| 0.00| 52| 43| 72|22| 1| 7| 376|30.30| 0.00| 61| 34| 36|27| 4| 9|
|13| 271|30.62| 0.00| 45| 23| 42|08| 1| 4| 302|30.24| 0.00| 69| 50| 52|22| 6| 15| 601|30.18| 0.00| 75| 27| 17|31| 5| 13|
|16| 49|30.55| 0.00| 47| 24| 40|08| 1| 3| 86|30.19| 0.00| 67| 52| 59|23| 5| 11| 329|30.13| 0.00| 74| 23| 15|31| 6| 16|
|19| 0|30.52| 0.00| 46| 25| 43|24| 0| 3| 0|30.20| 0.00| 64| 52| 66|23| 2| 7| 0|30.14| 0.00| 61| 21| 21|35| 0| 2|
|22| 0|30.49| 0.00| 45| 27| 48|23| 0| 3| 0|30.23| 0.00| 56| 51| 83|22| 0| 3| 0|30.13| 0.00| 52| 21| 30|22| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Precipitation | 0.02 | 0.03 | 0.04 | 0.05 | 0.06 | 0.08 | 0.10 | 0.12 | 0.14 | 0.15 | 0.20 | 0.23 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Date | 05 | 06 | 06 | 06 | 06 | 06 | 06 | 06 | 06 | 06 | 06 | 06 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Time | 0504 | 0455 | 0455 | 0500 | 0500 | 0310 | 0500 | 0506 | 0310 | 0325 | 0500 | 0500 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
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
January 2009: 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 |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 19 | JAN 20 | JAN 21 |
| | | |
|01| 0|30.05| 0.00| 50| 22| 33|24| 1| 6| 0|30.08| 0.00| 43| 27| 54|32| 0| 1| 0|30.27| 0.00| 34| 18| 51|04| 0| 1|
|04| 0|29.99| 0.00| 54| 21| 28|25| 3| 8| 0|30.12| 0.00| 41| 28| 58|00| 0| 0| 0|30.25| 0.00| 32| 18| 57|04| 0| 0|
|07| 0|30.03| 0.00| 54| 20| 26|28| 5| 10| 0|30.22| 0.00| 44| 28| 53|33| 0| 7| 0|30.25| 0.00| 31| 20| 63|04| 0| 0|
|10| 387|30.10| 0.00| 64| 21| 19|33| 6| 18| 399|30.32| 0.00| 54| 23| 30|04| 4| 12| 399|30.25| 0.00| 57| 19| 23|23| 4| 13|
|13| 638|30.04| 0.00| 68| 24| 19|02| 7| 26| 657|30.26| 0.00| 61| 17| 18|33| 8| 17| 661|30.15| 0.00| 72| 24| 16|22| 2| 12|
|16| 308|29.98| 0.00| 69| 25| 19|35| 6| 18| 352|30.22| 0.00| 61| 15| 16|06| 5| 13| 322|30.06| 0.00| 76| 23| 14|21| 3| 9|
|19| 0|30.03| 0.00| 58| 25| 28|32| 0| 1| 0|30.25| 0.00| 51| 14| 22|04| 0| 1| 0|30.05| 0.00| 63| 21| 20|22| 2| 5|
|22| 0|30.05| 0.00| 47| 27| 45|32| 0| 0| 0|30.28| 0.00| 42| 15| 33|04| 0| 0| 0|30.06| 0.00| 56| 22| 26|23| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 22 | JAN 23 | JAN 24 |
| | | |
|01| 0|30.04| 0.00| 53| 23| 31|24| 2| 4| 0|29.97| 0.00| 60| 50| 70|21| 2| 7| 0|30.08| 0.00| 61| 37| 41|09| 3| 12|
|04| 0|30.03| 0.00| 47| 23| 39|23| 0| 1| 0|29.97| 0.00| 60| 53| 77|22| 4| 11| 0|30.20| 0.00| 44| 24| 45|31| 3| 7|
|07| 0|30.06| 0.00| 41| 24| 51|23| 0| 0| 0|30.01| 0.00| 57| 53| 85|22| 1| 5| 0|30.28| 0.00| 39| 20| 46|06| 5| 12|
|10| 408|30.09| 0.00| 66| 32| 28|23| 3| 10| 137|30.05| 0.00| 66| 55| 69|22| 2| 11| 191|30.37| 0.00| 40| 20| 44|06| 3| 10|
|13| 666|30.00| 0.00| 80| 31| 17|25| 2| 13| 624|29.96| 0.00| 78| 56| 47|24| 2| 9| 274|30.33| 0.00| 40| 23| 50|03| 4| 11|
|16| 327|29.97| 0.00| 79| 32| 18|21| 4| 15| 323|29.93| 0.00| 81| 53| 38|22| 4| 11| 100|30.32| 0.00| 40| 24| 53|04| 2| 9|
|19| 0|29.98| 0.00| 67| 30| 25|22| 0| 2| 0|29.94| 0.00| 72| 53| 51|22| 1| 4| 0|30.31| 0.00| 37| 25| 60|05| 2| 8|
|22| 0|29.98| 0.00| 65| 42| 44|22| 4| 12| 0|29.97| 0.00| 67| 54| 62|23| 3| 11| 0|30.29| 0.00| 36| 26| 65|06| 2| 5|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 25 | JAN 26 | JAN 27 |
| | | |
|01| 0|30.25| 0.00| 37| 27| 68|03| 0| 3| 0|30.08| 0.00| 52| 46| 79|24| 1| 3| 0|30.00| 0.00| 65| 62| 91|27| 0| 3|
|04| 0|30.19| 0.00| 37| 29| 73|35| 0| 1| 0|30.05| 0.00| 52| 49| 88|19| 0| 3| 0|29.99| 0.00| 64| 62| 91|22| 1| 4|
|07| 0|30.19| 0.00| 37| 29| 73|35| 0| 1| 0|30.07| 0.00| 51| 49| 94|09| 1| 3| 0|30.05| 0.00| 50| 47| 89|04| 3| 6|
|10| 367|30.22| 0.00| 47| 34| 60|22| 0| 3| 44|30.09| 0.00| 52| 51| 96|10| 1| 4| 35|30.13| 0.00| 39| 38| 94|04| 2| 10|
|13| 251|30.13| 0.00| 51| 34| 52|21| 1| 5| 86|30.01| 0.00| 56| 55| 97|10| 0| 2| 81|30.07| 0.00| 37| 35| 94|04| 3| 8|
|16| 137|30.07| 0.00| 61| 34| 36|23| 0| 3| 262|29.94| 0.00| 62| 62| 98|10| 0| 1| 25|30.09| 0.00| 35| 33| 92|04| 3| 13|
|19| 0|30.08| 0.00| 56| 35| 45|06| 0| 1| 0|29.98| 0.00| 61| 60| 97|06| 0| 1| 0|30.14| 0.00| 32| 30| 92|35| 3| 18|
|22| 0|30.09| 0.00| 53| 42| 66|23| 1| 5| 0|29.98| 0.00| 63| 62| 97|22| 1| 5| 0|30.22| 0.00| 30| 28| 91|32| 6| 17|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 28 | JAN 29 | JAN 30 |
| | | |
|01| 0|30.23| 0.00| 31| 28| 89|00| 2| 14| 0|30.16| 0.00| 31| 26| 81|09| 0| 1| 0|30.37| 0.00| 37| 30| 75|02| 0| 2|
|04| 0|30.25| 0.00| 32| 29| 90|30| 0| 0| 0|30.17| 0.00| 28| 24| 84|09| 0| 1| 0|30.41| 0.00| 34| 28| 76|04| 0| 0|
|07| 0|30.29| 0.00| 29| 25| 86|30| 0| 0| 0|30.23| 0.00| 27| 24| 88|05| 0| 1| 0|30.44| 0.00| 28| 23| 80|04| 0| 1|
|10| 427|30.34| 0.06| 32| 26| 78|35| 0| 0| 394|30.29| 0.00| 39| 32| 76|06| 0| 4| 417|30.48| 0.00| 51| 35| 55|25| 1| 4|
|13| 677|30.24| 0.00| 42| 30| 62|07| 0| 6| 663|30.20| 0.00| 53| 35| 50|05| 2| 6| 700|30.39| 0.00| 67| 21| 17|23| 1| 9|
|16| 385|30.14| 0.00| 48| 32| 54|09| 0| 3| 360|30.20| 0.00| 56| 34| 43|06| 1| 7| 399|30.36| 0.00| 69| 14| 12|26| 0| 2|
|19| 0|30.14| 0.00| 41| 30| 65|09| 0| 1| 0|30.29| 0.00| 47| 30| 52|06| 0| 3| 0|30.39| 0.00| 55| 13| 19|25| 0| 0|
|22| 0|30.15| 0.00| 35| 28| 76|09| 0| 0| 0|30.38| 0.00| 42| 30| 62|01| 0| 4| 0|30.38| 0.00| 42| 20| 40|25| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| JAN 31 | | |
| | | |
|01| 0|30.34| 0.00| 39| 20| 46|25| 0| 1| | |
|04| 0|30.32| 0.00| 38| 21| 49|25| 0| 1| | |
|07| 0|30.32| 0.00| 35| 21| 56|25| 0| 1| | |
|10| 425|30.32| 0.00| 61| 25| 26|23| 4| 10| | |
|13| 700|30.22| 0.00| 73| 21| 14|22| 2| 13| | |
|16| 399|30.13| 0.00| 71| 16| 12|21| 4| 12| | |
|19| 0|30.11| 0.00| 57| 17| 20|25| 0| 1| | |
|22| 0|30.09| 0.00| 54| 33| 44|22| 1| 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|30.143| 46| 33| 63| 1.0| 23 | 0.2|
|04| 0|30.143| 44| 33| 67| 0.7| 28 | 0.3|
|07| 0|30.175| 41| 31| 70| 0.9| 03 | 0.4|
|10| 285|30.215| 52| 33| 53| 2.6| 27 | 0.9|
|13| 514|30.134| 62| 32| 39| 2.9| 28 | 1.0|
|16| 245|30.087| 63| 31| 36| 3.1| 25 | 1.2|
|19| 0|30.107| 55| 30| 44| 0.8| 34 | 0.2|
|22| 0|30.129| 50| 34| 57| 1.2| 27 | 0.3|
+--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
January 2009: 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| | | | | | | |0.01| | | | | | | | | | | | | | | | |02
03| | | | | | | | | | | | | | | | | | | | | | | | |03
04| | | | | | | | | | | | | | | | | | | | | | | | |04
05| | | |0.01|0.03|0.06|0.02| | | | | | | | | | | | | | | | | |05
| | | | | | | | | | | | | | | | | | | | | | | | |
06|0.01|0.05|0.08|0.05|0.09|0.05|0.04|0.04|0.01| | | | | | | | | | | | | | | |06
07| | | | | | | | | | | | | | | | | | | | | | | | |07
08| | | | | | | | | | | | | | | | | | | | | | | | |08
09| | | | | | | | | | | | | | | | | | | | | | | | |09
10| | |0.02| | | | | |0.01| | | | | | | | | | | | | | | |10
| | | | | | | | | | | | | | | | | | | | | | | | |
11| | | | | | | | | | | | | | | | | | | | | | | | |11
12| | | | | | | | | | | | | | | | | | | | | | | | |12
13| | | | | | | | | | | | | | | | | | | | | | | | |13
14| | | | | | | | | | | | | | | | | | | | | | | | |14
15| | | | | | | | | | | | | | | | | | | | | | | | |15
| | | | | | | | | | | | | | | | | | | | | | | | |
16| | | | | | | | | | | | | | | | | | | | | | | | |16
17| | | | | | | | | | | | | | | | | | | | | | | | |17
18| | | | | | | | | | | | | | | | | | | | | | | | |18
19| | | | | | | | | | | | | | | | | | | | | | | | |19
20| | | | | | | | | | | | | | | | | | | | | | | | |20
| | | | | | | | | | | | | | | | | | | | | | | | |
21| | | | | | | | | | | | | | | | | | | | | | | | |21
22| | | | | | | | | | | | | | | | | | | | | | | | |22
23| | | | | | | | | | | | | | | | | | | | | | | | |23
24| | | | | | | | | | | | | | | | | | | | | | | | |24
25| | | | | | | | | | | | | | | | | | | | | | | | |25
| | | | | | | | | | | | | | | | | | | | | | | | |
26| | | | | | | | | | | | |0.02| | | | | | | | | | | |26
27| | | | | | | |0.01|0.01| |0.01| | | | | | | | | | | | | |27
28| | | | | | | | | |0.02|0.03|0.03|0.01|0.01| | | | | | | | | | |28
29| | | | | | | | | | | | | | | | | | | | | | | | |29
30| | | | | | | | | | | | | | | | | | | | | | | | |30
31| | | | | | | | | | | | | | | | | | | | | | | | |31
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
Sum|0.01|0.05|0.10|0.06|0.12|0.11|0.06|0.06|0.03|0.02|0.04|0.03|0.03|0.01|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.00|0.00|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.)