LOCAL CLIMATOLOGICAL DATA Monthly Summary September 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| 94.7 | 69.3 | 82.0 | 80.9 | 64| 59| 0| 17|.........| 0| 0.00| 0.0| 30.14| 30.01|30.066| 0.2| 0.1|140| 9| E| 3| 92| 219 | |02| 98.2 | 69.8 | 84.0 | 83.6 | 64| 54| 0| 19|.........| 0| 0.00| 0.0| 30.10| 29.92|30.015| 0.3| 0.3|224| 11|SSW| 3|227| 249 | |03|101.7*| 73.2 | 87.4*| 85.2 | 65| 55| 0| 23|.........| 0| 0.00| 0.0| 29.98| 29.81|29.919| 0.5| 0.2|188| 17|ENE| 7| 85| 244 | |04| 92.9 | 72.5 | 82.7 | 80.0 | 66| 64| 0| 18|..3......| 0| 0.02| 0.0| 29.99| 29.85|29.926| 0.5| 0.4|105| 7| E| 4| 81| 164 | |05| 92.1 | 71.1 | 81.6 | 77.0 | 67| 74| 0| 17|..3......| 0| 0.01| 0.0| 30.05| 29.94|29.987| 0.5| 0.4| 67| 10|WNW| 5| 87| 147 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 95.6 | 68.8 | 82.2 | 81.4 | 65| 61| 0| 18|.........| 0| 0.01| 0.0| 30.05| 29.92|29.991| 0.4| 0.4| 86| 9| E| 5|100| 219 | |07| 97.1 | 69.3 | 83.2 | 83.6 | 65| 57| 0| 18|.........| 0| 0.00| 0.0| 30.00| 29.84|29.930| 0.4| 0.3|102| 12|WSW| 4| 91| 243 | |08| 96.6 | 71.5 | 84.1 | 83.3 | 67| 62| 0| 20|.........| 0| 0.00| 0.0| 29.93| 29.79|29.874| 0.5| 0.2|127| 12|WSW| 4|108| 230 | |09| 91.6 | 74.4 | 83.0 | 80.2 | 71| 76| 0| 18|.........| 0| 0.00| 0.0| 29.96| 29.87|29.903| 0.4| 0.3| 98| 17| E| 8| 97| 145 | |10| 84.9 | 72.3 | 78.6 | 76.8 | 71| 82| 0| 14|.........| 0| T | 0.0| 29.98| 29.91|29.944| 0.5| 0.0|177| 13| W| 4|262| 96 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 74.2 | 70.8 | 72.5 | 72.0 | 70| 95| 0| 8|..3......| 0| 1.84| 0.0| 29.96| 29.87|29.917| 0.5| 0.4| 40| 11|WNW| 5|342| 46 | |12| 74.4 | 70.8 | 72.6 | 72.1 | 71| 96| 0| 8|..3......| 0| 0.91| 0.0| 29.87| 29.70|29.777| 0.4| 0.4| 82| 11|ESE| 5| 95| 39 | |13| 84.5 | 69.9 | 77.2 | 73.8 | 71| 90| 0| 13|1.3......| 0| 0.12| 0.0| 29.78| 29.69|29.733| 0.5| 0.4|308| 12|WNW| 7|275| 110 | |14| 78.8 | 69.3 | 74.1 | 72.8 | 68| 85| 0| 9|.........| 0| 0.04| 0.0| 29.86| 29.75|29.809| 2.6| 2.5|321| 19|NNW| 9|296| 81 | |15| 84.5 | 69.6 | 77.1 | 75.1 | 66| 76| 0| 13|.........| 0| 0.00| 0.0| 29.92| 29.84|29.870| 1.9| 1.9|324| 15|NNW| 9|318| 145 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 87.2 | 67.3 | 77.3 | 76.0 | 66| 73| 0| 12|.........| 0| 0.00| 0.0| 29.91| 29.83|29.867| 2.2| 2.1|332| 19| NW| 12|329| 192 | |17| 79.6 | 68.1 | 73.8 | 73.0 | 65| 76| 0| 9|.........| 0| 0.00| 0.0| 29.91| 29.83|29.869| 4.5| 4.4|319| 23| NW| 12|331| 105 | |18| 85.7 | 69.4 | 77.6 | 75.8 | 67| 75| 0| 13|.........| 0| 0.00| 0.0| 30.01| 29.90|29.949| 1.2| 1.1| 4| 15| NW| 7|333| 161 | |19| 88.0 | 68.3 | 78.2 | 76.9 | 67| 74| 0| 13|.........| 0| 0.00| 0.0| 30.06| 29.94|29.994| 0.4| 0.4|349| 10|WNW| 4|325| 165 | |20| 97.1 | 67.6 | 82.3 | 80.8 | 67| 66| 0| 18|.........| 0| 0.00| 0.0| 30.00| 29.84|29.929| 0.2| 0.2|223| 10|SSW| 3|220| 209 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 96.6 | 75.3 | 85.9 | 84.1 | 71| 67| 0| 21|.........| 0| 0.00| 0.0| 29.90| 29.76|29.839| 1.0| 1.0|227| 14|SSW| 5|225| 227 | |22| 79.9 | 62.1 | 71.0 | 66.5 | 63| 89| 0| 6|..3......| 0| 1.35| 0.0| 30.12| 29.83|30.014| 1.1| 1.0| 40| 21| NW| 9|323| 37 | |23| 65.5 | 57.5 | 61.5*| 61.8 | 57| 83| 3| 0|.........| 0| 0.23| 0.0| 30.21| 30.09|30.146| 0.6| 0.6| 29| 12|WNW| 5|325| 39 | |24| 66.6 | 57.3*| 61.9 | 61.9 | 56| 82| 3| 0|.........| 0| 0.08| 0.0| 30.17| 30.09|30.131| 0.3| 0.3| 32| 9| N| 4| 47| 74 | |25| 80.1 | 58.0 | 69.1 | 68.5 | 61| 78| 0| 4|.........| 0| 0.00| 0.0| 30.14| 30.02|30.083| 0.3| 0.3| 53| 8| NE| 2| 97| 209 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 90.3 | 63.1 | 76.7 | 76.4 | 67| 74| 0| 12|.........| 0| 0.00| 0.0| 30.07| 29.91|29.994| 0.1| 0.0|285| 15| W| 4|302| 223 | |27| 94.0 | 67.4 | 80.7 | 80.6 | 69| 71| 0| 16|.........| 0| 0.00| 0.0| 29.92| 29.77|29.847| 0.6| 0.6|231| 12| S| 4|250| 227 | |28| 88.8 | 69.1 | 78.9 | 80.1 | 68| 67| 0| 14|..3......| 0| T | 0.0| 30.05| 29.81|29.915| 0.5| 0.4| 49| 11| NE| 4| 40| 112 | |29| 81.1 | 59.0 | 70.1 | 70.3 | 60| 71| 0| 5|..3......| 0| 0.05| 0.0| 30.16| 30.00|30.063| 0.5| 0.5| 48| 12|NNW| 4|329| 206 | |30| 89.9 | 66.0 | 77.9 | 76.8 | 68| 76| 0| 13|.........| 0| 0.00| 0.0| 30.02| 29.86|29.948| 0.4| 0.4|234| 10| S| 3|244| 168 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2612.2|2038.1|------|------|---|----| 6| 389| Days | 4.66| 0.0| 30.21| 29.69|29.942| 0.8| 0.4|341| 23| NW| 12|331| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 87.1| 67.9| 77.5 | 76.2 | 66|73.6|----|----|≥.01 Inch 11|20.18| 0.0| 23 | 13 |------|----|----|---| 17 | 17 | 158| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 | 6|3235|Thunder 8|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 2.28| 11-12| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 14 | 0 | 0 | 0 |----|----| Clear 17 Partly Cloudy 2 Cloudy 11 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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 September 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 1 | SEP 2 | SEP 3 | | | | | |01| 0|30.05| 0.00| 75| 61| 62|10| 0| 0| 0|30.06| 0.00| 77| 64| 64|22| 0| 2| 0|29.98| 0.00| 79| 63| 58|23| 0| 1| |04| 0|30.05| 0.00| 70| 62| 75|10| 0| 0| 0|30.05| 0.00| 73| 64| 72|22| 0| 0| 0|29.96| 0.00| 76| 66| 72|23| 0| 4| |07| 5|30.09| 0.00| 69| 62| 78|10| 0| 0| 0|30.07| 0.00| 70| 63| 79|22| 0| 0| 0|29.97| 0.00| 74| 67| 80|21| 0| 0| |10| 216|30.14| 0.00| 78| 67| 70|09| 0| 1| 213|30.08| 0.00| 82| 69| 65|21| 3| 9| 348|29.98| 0.00| 83| 70| 66|24| 1| 6| |13| 796|30.10| 0.00| 90| 67| 47|09| 0| 9| 874|30.04| 0.00| 91| 66| 44|24| 1| 6| 858|29.92| 0.00| 96| 69| 41|22| 0| 2| |16| 721|30.03| 0.00| 93| 64| 38|09| 0| 5| 679|29.95| 0.00| 96| 63| 33|22| 1| 5| 712|29.84| 0.00|101| 60| 26|07| 0| 3| |19| 120|30.01| 0.00| 90| 63| 41|25| 0| 2| 104|29.93| 0.00| 94| 60| 32|05| 0| 0| 63|29.82| 0.00| 96| 58| 28|25| 0| 1| |22| 0|30.05| 0.00| 81| 64| 55|17| 0| 1| 0|29.95| 0.00| 84| 60| 44|06| 0| 1| 0|29.90| 0.00| 79| 66| 66|24| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| 0|29.88| 0.00| 78| 66| 66|23| 0| 2| 0|29.98| 0.00| 74| 69| 85|22| 0| 2| 0|30.01| 0.00| 71| 66| 84|34| 0| 0| |04| 0|29.92| 0.00| 74| 66| 76|11| 0| 4| 0|29.95| 0.00| 73| 68| 87|32| 0| 0| 0|30.00| 0.00| 70| 65| 84|02| 0| 0| |07| 0|29.93| 0.00| 73| 66| 78|08| 0| 3| 0|29.99| 0.00| 72| 69| 89|32| 0| 0| 0|30.03| 0.00| 69| 65| 86|05| 0| 2| |10| 281|29.98| 0.00| 77| 65| 68|08| 3| 7| 207|30.03| 0.00| 77| 69| 77|04| 1| 4| 179|30.04| 0.00| 81| 66| 61|10| 1| 4| |13| 501|29.94| 0.00| 87| 68| 52|12| 1| 3| 422|30.03| 0.00| 83| 67| 59|08| 1| 4| 867|30.02| 0.00| 92| 68| 45|08| 1| 4| |16| 573|29.88| 0.00| 93| 67| 43|33| 0| 3| 814|29.95| 0.00| 91| 66| 44|04| 0| 5| 450|29.95| 0.00| 94| 61| 33|08| 2| 6| |19| 16|29.90| 0.00| 81| 65| 57|21| 1| 6| 21|29.99| 0.00| 79| 65| 63|09| 0| 5| 90|29.92| 0.00| 92| 62| 38|08| 0| 5| |22| 0|29.96| 0.00| 76| 68| 75|02| 0| 1| 0|30.00| 0.00| 73| 65| 77|34| 0| 0| 0|29.96| 0.00| 84| 65| 54|26| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| 0|29.98| 0.00| 77| 67| 70|21| 0| 0| 0|29.91| 0.00| 79| 68| 69|20| 0| 0| 0|29.88| 0.00| 78| 71| 79|22| 0| 1| |04| 0|29.96| 0.00| 74| 66| 78|21| 0| 0| 0|29.88| 0.00| 75| 68| 80|20| 0| 0| 0|29.88| 0.00| 77| 71| 84|00| 0| 0| |07| 0|29.96| 0.00| 70| 65| 85|21| 0| 0| 0|29.90| 0.00| 72| 68| 86|20| 0| 0| 0|29.91| 0.00| 75| 71| 89|00| 0| 0| |10| 234|29.99| 0.00| 82| 69| 65|21| 0| 1| 127|29.92| 0.00| 83| 71| 69|24| 0| 2| 194|29.95| 0.00| 79| 74| 86|09| 0| 1| |13| 909|29.97| 0.00| 92| 65| 41|10| 2| 5| 865|29.89| 0.00| 92| 66| 43|03| 0| 6| 297|29.92| 0.00| 87| 73| 64|15| 0| 2| |16| 714|29.87| 0.00| 95| 61| 32|09| 1| 9| 176|29.82| 0.00| 94| 61| 33|10| 2| 7| 542|29.87| 0.00| 91| 72| 53|09| 1| 4| |19| 86|29.84| 0.00| 93| 59| 32|07| 0| 4| 63|29.80| 0.00| 91| 68| 47|23| 1| 10| 18|29.89| 0.00| 82| 71| 69|07| 0| 2| |22| 0|29.88| 0.00| 85| 67| 55|22| 2| 9| 0|29.87| 0.00| 81| 68| 66|20| 0| 5| 0|29.92| 0.00| 77| 70| 79|14| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| 0|29.94| 0.00| 75| 70| 83|20| 0| 0| 0|29.94| 0.00| 74| 71| 91|03| 1| 5| 0|29.87| 0.00| 72| 71| 96|05| 1| 4| |04| 0|29.92| 0.00| 74| 70| 88|07| 0| 0| 0|29.94| 0.00| 71| 70| 95|01| 0| 0| 0|29.82| 0.36| 71| 70| 96|06| 0| 5| |07| 0|29.93| 0.00| 73| 70| 91|07| 0| 0| 0|29.94| 0.00| 72| 70| 96|04| 0| 4| 0|29.80| 0.00| 71| 70| 97|09| 0| 3| |10| 320|29.97| 0.00| 78| 72| 83|08| 1| 3| 93|29.96| 0.05| 72| 71| 96|04| 1| 5| 42|29.81| 0.00| 72| 71| 97|10| 0| 3| |13| 352|29.95| 0.00| 85| 69| 60|09| 2| 7| 19|29.93| 0.25| 72| 70| 96|30| 0| 0| 251|29.77| 0.00| 73| 72| 96|09| 2| 7| |16| 116|29.93| 0.00| 77| 72| 83|25| 2| 9| | | | | | | | | | 11|29.72| 0.00| 74| 72| 92|04| 0| 2| |19| 32|29.92| 0.00| 77| 70| 79|26| 0| 3| 16|29.88| 0.00| 72| 70| 92|10| 1| 6| 5|29.72| 0.00| 73| 71| 95|01| 0| 1| |22| 0|29.97| 0.00| 75| 71| 87|26| 0| 3| 0|29.89| 0.00| 71| 70| 95|05| 0| 3| 0|29.74| 0.00| 71| 70| 96|35| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| 0|29.73| 0.00| 71| 70| 96|34| 1| 4| 0|29.77| 0.00| 72| 70| 95|32| 1| 5| 0|29.86| 0.00| 72| 66| 83|33| 3| 11| |04| 0|29.72| 0.00| 71| 70| 97|31| 0| 4| 0|29.75| 0.00| 70| 69| 96|26| 1| 4| 0|29.84| 0.00| 71| 67| 87|31| 0| 5| |07| 0|29.73| 0.00| 70| 69| 97|31| 0| 5| 0|29.78| 0.00| 70| 69| 96|32| 5| 11| 0|29.86| 0.00| 71| 66| 85|33| 2| 10| |10| 130|29.76| 0.00| 72| 71| 97|32| 0| 4| 188|29.84| 0.00| 71| 69| 95|34| 4| 11| 204|29.90| 0.00| 73| 67| 81|28| 3| 7| |13| 297|29.76| 0.00| 74| 73| 94|26| 0| 4| 311|29.84| 0.00| 76| 68| 76|33| 6| 15| 436|29.90| 0.00| 81| 67| 64|30| 3| 13| |16| 72|29.69| 0.00| 84| 70| 62|25| 2| 6| 178|29.80| 0.00| 78| 67| 69|30| 4| 14| 220|29.85| 0.00| 84| 67| 57|01| 3| 11| |19| 7|29.71| 0.14| 75| 70| 85|05| 0| 3| 26|29.82| 0.00| 75| 66| 73|30| 5| 11| 84|29.85| 0.00| 79| 66| 65|02| 0| 2| |22| 0|29.77| 0.00| 73| 71| 93|03| 0| 3| 0|29.85| 0.00| 73| 67| 82|33| 0| 2| 0|29.88| 0.00| 72| 66| 81|01| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| 0|29.88| 0.00| 69| 64| 86|01| 0| 0| 0|29.86| 0.00| 72| 66| 81|28| 2| 5| 0|29.90| 0.00| 71| 67| 86|00| 1| 4| |04| 0|29.86| 0.00| 68| 65| 91|31| 1| 3| 0|29.84| 0.00| 71| 63| 78|32| 6| 14| 0|29.91| 0.00| 70| 67| 91|32| 2| 5| |07| 0|29.88| 0.00| 68| 65| 91|32| 2| 5| 0|29.84| 0.00| 68| 62| 80|33| 2| 10| 0|29.95| 0.00| 71| 68| 90|28| 2| 5| |10| 213|29.90| 0.00| 76| 69| 77|31| 4| 9| 239|29.87| 0.00| 74| 64| 72|30| 8| 14| 209|29.96| 0.00| 78| 67| 70|32| 2| 9| |13| 895|29.88| 0.00| 85| 67| 56|35| 4| 14| 244|29.89| 0.00| 76| 66| 70|34| 6| 15| 912|29.97| 0.00| 83| 69| 61|34| 2| 10| |16| 789|29.83| 0.00| 85| 67| 54|04| 3| 17| 230|29.85| 0.00| 77| 66| 70|33| 9| 17| 499|29.93| 0.00| 84| 67| 56|06| 1| 11| |19| 33|29.83| 0.00| 81| 66| 61|01| 2| 10| 37|29.87| 0.00| 74| 66| 76|33| 6| 15| 26|29.95| 0.00| 80| 67| 64|05| 2| 6| |22| 0|29.88| 0.00| 75| 66| 72|32| 1| 5| 0|29.91| 0.00| 72| 67| 85|33| 4| 15| 0|30.00| 0.00| 73| 65| 77|04| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.28 | 0.42 | 0.51 | 0.70 | 0.91 | 1.15 | 1.30 | 1.38 | 1.40 | 1.42 | 1.45 | 1.45 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1225 | 1228 | 1225 | 1226 | 1227 | 1237 | 1251 | 1310 | 1327 | 1344 | 1420 | 1420 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 September 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 19 | SEP 20 | SEP 21 | | | | | |01| 0|30.00| 0.00| 71| 67| 85|33| 0| 5| 0|29.97| 0.00| 73| 66| 79|32| 0| 0| 0|29.88| 0.00| 77| 68| 74|21| 0| 0| |04| 0|30.00| 0.00| 70| 66| 89|35| 0| 1| 0|29.96| 0.00| 70| 66| 87|32| 0| 0| 0|29.86| 0.00| 76| 71| 85|19| 0| 3| |07| 0|30.01| 0.00| 68| 66| 93|33| 0| 4| 0|29.97| 0.00| 68| 65| 90|32| 0| 0| 0|29.87| 0.00| 75| 73| 92|19| 0| 2| |10| 302|30.05| 0.00| 76| 70| 83|04| 1| 3| 111|30.00| 0.00| 77| 71| 83|28| 0| 2| 141|29.89| 0.00| 81| 74| 78|22| 2| 9| |13| 860|30.02| 0.00| 84| 69| 60|33| 3| 5| 916|29.94| 0.00| 93| 68| 44|21| 1| 7| 840|29.85| 0.00| 92| 72| 52|21| 2| 14| |16| 775|29.96| 0.00| 88| 67| 51|33| 0| 6| 519|29.87| 0.00| 95| 65| 37|21| 0| 3| 606|29.78| 0.00| 96| 69| 41|21| 2| 9| |19| 39|29.94| 0.00| 83| 66| 57|32| 0| 3| 62|29.84| 0.00| 88| 66| 47|25| 0| 5| 56|29.77| 0.00| 91| 67| 45|23| 1| 9| |22| 0|29.98| 0.00| 77| 67| 71|32| 0| 0| 0|29.89| 0.00| 80| 67| 64|22| 0| 0| 0|29.81| 0.00| 83| 71| 68|22| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| 0|29.87| 0.00| 79| 70| 75|08| 0| 0| 0|30.11| 0.00| 63| 58| 84|02| 0| 5| 0|30.16| 0.00| 57| 54| 89|07| 0| 2| |04| 0|29.93| 0.06| 68| 66| 95|03| 0| 5| 0|30.09| 0.00| 63| 57| 83|02| 0| 5| 0|30.14| 0.00| 58| 53| 86|34| 0| 0| |07| 0|29.97| 0.08| 67| 66| 97|09| 0| 4| 0|30.12| 0.00| 63| 58| 84|04| 0| 2| 0|30.12| 0.00| 58| 53| 83|34| 0| 3| |10| 35|30.03| 0.00| 66| 65| 97|10| 0| 1| 120|30.17| 0.00| 63| 59| 85|03| 2| 6| 114|30.16| 0.00| 62| 56| 83|34| 1| 4| |13| 88|30.07| 0.00| 62| 61| 96|01| 5| 16| 123|30.17| 0.00| 65| 57| 75|00| 1| 9| 237|30.15| 0.00| 65| 57| 75|03| 2| 7| |16| 88|30.05| 0.00| 63| 60| 89|04| 1| 11| 77|30.14| 0.07| 61| 57| 85|04| 1| 5| 179|30.10| 0.00| 66| 59| 80|04| 0| 3| |19| 7|30.08| 0.00| 65| 59| 80|03| 1| 7| 0|30.16| 0.00| 58| 55| 87|05| 1| 7| 11|30.09| 0.00| 66| 59| 78|06| 0| 2| |22| 0|30.12| 0.00| 64| 57| 78|04| 0| 6| 0|30.18| 0.00| 58| 54| 87|08| 0| 3| 0|30.12| 0.00| 64| 60| 87|06| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| 0|30.12| 0.00| 61| 58| 88|06| 0| 1| 0|30.05| 0.00| 69| 65| 87|05| 0| 1| 0|29.90| 0.00| 74| 69| 85|21| 0| 1| |04| 0|30.09| 0.00| 59| 56| 89|02| 0| 2| 0|30.02| 0.00| 66| 62| 89|05| 0| 0| 0|29.86| 0.00| 70| 66| 87|21| 0| 0| |07| 0|30.10| 0.00| 58| 56| 92|02| 0| 2| 0|30.03| 0.00| 64| 62| 93|05| 0| 0| 0|29.88| 0.00| 68| 66| 93|21| 0| 0| |10| 183|30.14| 0.00| 63| 59| 86|35| 1| 5| 70|30.06| 0.00| 73| 71| 94|31| 0| 1| 132|29.92| 0.00| 78| 73| 85|23| 1| 7| |13| 810|30.11| 0.00| 74| 65| 73|03| 1| 6| 991|30.02| 0.00| 87| 69| 55|22| 0| 1| 854|29.87| 0.00| 90| 72| 57|21| 1| 10| |16| 645|30.04| 0.00| 79| 66| 64|06| 0| 3| 707|29.94| 0.00| 90| 68| 50|34| 0| 4| 687|29.78| 0.00| 93| 66| 42|24| 1| 10| |19| 26|30.03| 0.00| 78| 65| 65|08| 0| 1| 54|29.92| 0.00| 87| 68| 54|13| 0| 1| 42|29.77| 0.00| 90| 69| 51|20| 0| 3| |22| 0|30.05| 0.00| 72| 64| 77|08| 0| 0| 0|29.94| 0.00| 77| 68| 73|16| 0| 0| 0|29.82| 0.00| 81| 70| 70|21| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| 0|29.82| 0.00| 79| 70| 73|21| 0| 0| 0|30.04| 0.00| 67| 55| 64|03| 1| 3| 0|30.00| 0.00| 69| 64| 84|23| 0| 0| |04| 0|29.81| 0.00| 79| 70| 73|21| 0| 0| 0|30.05| 0.00| 66| 55| 68|34| 1| 6| 0|30.00| 0.00| 66| 62| 87|22| 0| 1| |07| 0|29.88| 0.00| 79| 70| 73|21| 0| 0| 0|30.10| 0.00| 59| 56| 89|04| 1| 5| 0|30.00| 0.00| 68| 64| 89|10| 0| 1| |10| 0|29.97| 0.00| 79| 70| 73|21| 0| 0| 309|30.15| 0.00| 67| 59| 76|04| 2| 6| 151|30.02| 0.00| 75| 70| 83|24| 0| 3| |13| 958|29.95| 0.00| 87| 75| 67|10| 2| 5|1121|30.10| 0.00| 75| 63| 67|02| 1| 4| 216|29.97| 0.00| 82| 71| 69|25| 0| 3| |16| 134|29.91| 0.00| 85| 72| 64|04| 0| 9| 617|30.02| 0.00| 79| 64| 61|08| 0| 5| 142|29.88| 0.00| 88| 70| 55|22| 1| 6| |19| 21|29.94| 0.00| 81| 64| 56|04| 1| 5| 33|30.01| 0.00| 80| 65| 60|11| 0| 1| 14|29.86| 0.00| 85| 70| 62|09| 1| 3| |22| 0|30.02| 0.00| 75| 55| 51|04| 1| 7| 0|30.03| 0.00| 73| 64| 73|11| 0| 1| 0|29.89| 0.00| 78| 71| 79|23| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+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|29.941| 73| 66| 80| 0.3| 34 | 0.2| |04| 0|29.931| 71| 66| 84| 0.4| 32 | 0.3| |07| 0|29.948| 70| 66| 87| 0.5| 32 | 0.4| |10| 161|29.979| 75| 68| 80| 1.3| 32 | 0.6| |13| 549|29.958| 82| 68| 65| 1.5| 36 | 0.7| |16| 396|29.903| 85| 66| 57| 1.2| 35 | 0.4| |19| 37|29.901| 81| 66| 63| 0.8| 34 | 0.4| |22| 0|29.937| 75| 66| 74| 0.3| 32 | 0.2| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)September 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| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | |0.02|04 05| | | | | | | | | | | | | | | | | | | |0.01| | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| |0.01| | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | |0.39| |0.15|1.20|0.07|0.02|0.01| | | | | | | | |11 12|0.02|0.04|0.02|0.28|0.06| |0.01| |0.01|0.03|0.13|0.01| | |0.01| |0.05|0.03|0.01|0.11|0.07|0.02| | |12 13| | |0.01| | | | | | | | | | | | | |0.04| |0.05|0.02| | | | |13 14| | |0.03| | | |0.01| | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| |0.01|0.41|0.29|0.20|0.17|0.12|0.06|0.03| |0.02|0.02| | |0.02| | | | | | | | | |22 23| | | | | | | | |0.01|0.02| | | | |0.02|0.05|0.04|0.04|0.03|0.02| | | | |23 24| | | | | | | | | | |0.02|0.01| | |0.01|0.04| | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | |0.01|0.04| | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.02|0.06|0.47|0.57|0.27|0.21|0.14|0.06|0.05|0.44|0.17|0.19|1.20|0.07|0.08|0.10|0.13|0.07|0.09|0.16|0.07|0.02|0.00|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.)