LOCAL CLIMATOLOGICAL DATA Monthly Summary March 2010 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| 58.7 | 41.9 | 50.3 | 48.5 | 46| 90| 14| 0|..3......| 0| 0.79| 0.0| 30.13| 29.71|29.866| 2.0| 1.4| 41| 21| E| 9| 40| 89 | |02| 59.9 | 35.0 | 47.5*| 46.6 | 33| 63| 17| 0|.........| 0| 0.00| 0.0| 30.23| 30.10|30.149| 2.3| 2.2|335| 16|NNW| 9|330| 233 | |03| 70.1 | 35.0 | 52.5 | 51.8 | 38| 63| 12| 0|.........| 0| 0.00| 0.0| 30.17| 30.04|30.101| 0.2| 0.2|210| 14|WSW| 3|212| 234 | |04| 73.2 | 40.2 | 56.7 | 56.2 | 44| 67| 8| 0|.........| 0| 0.00| 0.0| 30.17| 30.04|30.096| 0.9| 0.9|233| 13| SW| 5|220| 225 | |05| 68.4 | 47.1 | 57.8 | 56.7 | 46| 70| 7| 0|.........| 0| 0.00| 0.0| 30.17| 30.05|30.108| 0.7| 0.7|241| 11|SSW| 4|235| 121 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 67.6 | 49.5 | 58.5 | 59.2 | 50| 71| 6| 0|.........| 0| 0.00| 0.0| 30.23| 30.12|30.167| 0.4| 0.1|176| 9| E| 3| 92| 97 | |07| 62.0 | 53.8 | 57.9 | 57.7 | 53| 86| 7| 0|.........| 0| 0.03| 0.0| 30.16| 30.00|30.084| 0.7| 0.6| 90| 9| E| 3| 96| 43 | |08| 65.6 | 57.2 | 61.4 | 62.1 | 62| 99| 3| 0|..3......| 0| 0.08| 0.0| 30.00| 29.69|29.829| 1.2| 0.8|232| 15| SW| 6|251| 19 | |09| 81.1 | 49.6 | 65.3 | 64.9 | 47| 60| 0| 1|..3.5....| 0| 0.46| 0.0| 29.80| 29.62|29.713| 1.2| 1.2|242| 25| W| 15|266| 247 | |10| 82.2 | 49.8 | 66.0 | 65.5 | 49| 64| 0| 1|..3......| 0| 0.01| 0.0| 29.62| 29.50|29.562| 1.4| 1.3|257| 19|NNW| 11|277| 217 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 73.7 | 42.5 | 58.1 | 57.3 | 37| 50| 6| 0|.........| 0| 0.00| 0.0| 29.83| 29.57|29.687| 1.5| 1.4|334| 21| NW| 13|316| 220 | |12| 71.3 | 45.2 | 58.3 | 57.0 | 35| 47| 7| 0|.........| 0| 0.00| 0.0| 29.96| 29.81|29.862| 4.0| 3.8|307| 22| NW| 13|327| 243 | |13| 76.8 | 41.8 | 59.3 | 59.3 | 35| 44| 5| 0|.........| 0| 0.00| 0.0| 29.94| 29.76|29.848| 1.0| 1.0|308| 15| NW| 8|324| 246 | |14| 83.6 | 42.6 | 63.1 | 61.8 | 42| 53| 1| 0|.........| 0| 0.00| 0.0| 29.92| 29.77|29.838| 0.2| 0.2|229| 10|WSW| 3|238| 236 | |15| 68.6 | 51.6 | 60.1 | 59.4 | 49| 69| 4| 0|.........| 0| 0.12| 0.0| 30.20| 29.91|30.057| 1.9| 1.9| 58| 15| NW| 6| 76| 194 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 54.4 | 48.6 | 51.5 | 52.4 | 50| 92| 13| 0|.........| 0| 1.00| 0.0| 30.28| 30.15|30.231| 1.1| 1.0| 28| 12| N| 5|334| 41 | |17| 70.8 | 44.1 | 57.5 | 56.1 | 44| 69| 7| 0|.........| 0| 0.01| 0.0| 30.26| 30.08|30.166| 1.1| 0.8|356| 12|NNW| 6|334| 239 | |18| 66.4 | 42.2 | 54.3 | 55.7 | 43| 64| 11| 0|.........| 0| 0.00| 0.0| 30.20| 30.00|30.100| 0.4| 0.4| 77| 7| E| 4| 93| 250 | |19| 77.2 | 49.2 | 63.2 | 61.5 | 51| 70| 2| 0|.........| 0| 0.00| 0.0| 30.00| 29.79|29.892| 1.2| 1.2|234| 16|SSE| 6|219| 202 | |20| 61.5 | 36.2 | 48.8 | 46.2 | 39| 77| 16| 0|..3......| 0| 0.83| 0.0| 30.23| 29.77|30.015| 6.2| 6.0|325| 29|NNW| 16|337| 82 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 59.6 | 35.8 | 47.7 | 46.7 | 25| 45| 17| 0|.........| 0| 0.00| 0.0| 30.21| 30.01|30.102| 7.3| 7.2|310| 29| NW| 19|320| 260 | |22| 74.7 | 34.0*| 54.3 | 54.7 | 30| 43| 10| 0|.........| 0| 0.00| 0.0| 30.16| 29.94|30.051| 0.4| 0.3|277| 9| NW| 3|323| 264 | |23| 78.5 | 44.1 | 61.3 | 60.9 | 46| 60| 3| 0|.........| 0| 0.00| 0.0| 29.96| 29.80|29.895| 1.1| 1.1|235| 15|SSE| 5|233| 251 | |24| 67.8 | 54.7 | 61.3 | 62.4 | 59| 88| 3| 0|..3......| 0| 0.62| 0.0| 29.89| 29.72|29.839| 0.7| 0.6|239| 25| W| 15|273| 67 | |25| 67.6 | 46.0 | 56.8 | 56.7 | 44| 65| 8| 0|.........| 0| 0.01| 0.0| 30.06| 29.89|29.993| 4.7| 4.6|314| 26|WNW| 18|319| 256 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 76.0 | 40.5 | 58.3 | 58.2 | 43| 61| 6| 0|.........| 0| 0.00| 0.0| 30.09| 29.77|29.964| 0.5| 0.5|229| 11| S| 5|256| 258 | |27| 81.2 | 51.0 | 66.1 | 64.6 | 44| 56| 0| 1|.........| 0| 0.00| 0.0| 30.00| 29.73|29.818| 2.5| 2.2|270| 25| N| 15|327| 266 | |28| 72.0 | 47.7 | 59.8 | 58.8 | 37| 47| 5| 0|.........| 0| 0.00| 0.0| 30.17| 29.99|30.077| 3.0| 2.9|331| 25|WNW| 13|326| 267 | |29| 77.7 | 39.1 | 58.4 | 58.8 | 38| 52| 6| 0|.........| 0| 0.00| 0.0| 30.15| 29.94|30.053| 0.2| 0.2|218| 7| S| 2|208| 266 | |30| 80.3 | 50.7 | 65.5 | 65.6 | 43| 45| 0| 1|.........| 0| 0.00| 0.0| 29.99| 29.85|29.917| 1.5| 1.5|225| 20| SW| 7|224| 268 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 84.3*| 55.9 | 70.1*| 68.7 | 57| 68| 0| 5|.........| 0| 0.00| 0.0| 29.93| 29.83|29.879| 1.9| 1.8|227| 16|SSW| 7|217| 267 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2212.8|1402.6|------|------|---|----| 204| 9| Days | 3.96| 0.0| 30.28| 29.50|29.966| 1.7| 1.1|304| 29|NNW| 19|320| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 71.4| 45.2| 58.3 | 57.8 | 44|64.4|----|----|≥.01 Inch 11|10.02| 0.4| 16 | 10 |------|----|----|---| 20+ | 21 | 199| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |2132| 11|Thunder 6|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 1.12| 15-16| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 22 Partly Cloudy 1 Cloudy 8 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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 March 2010: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 1 | MAR 2 | MAR 3 | | | | | |01| 0|29.78| 0.06| 50| 48| 93|09| 3| 10| 0|30.13| 0.00| 42| 37| 81|33| 3| 11| 0|30.13| 0.00| 38| 33| 82|04| 0| 0| |04| 0|29.73| 0.04| 50| 48| 94|06| 1| 3| 0|30.15| 0.00| 38| 33| 81|33| 3| 12| 0|30.11| 0.00| 36| 32| 87|04| 0| 0| |07| 5|29.77| 0.00| 45| 43| 94|06| 0| 2| 9|30.20| 0.00| 35| 31| 83|30| 4| 10| 11|30.13| 0.00| 35| 33| 90|04| 0| 0| |10| 213|29.80| 0.00| 53| 51| 93|05| 1| 2| 575|30.22| 0.00| 47| 34| 59|02| 2| 11| 573|30.16| 0.00| 58| 39| 49|23| 1| 4| |13|1120|29.77| 0.00| 58| 52| 80|06| 1| 5| 851|30.16| 0.00| 58| 31| 36|02| 2| 10| 853|30.09| 0.00| 67| 38| 34|07| 0| 4| |16| 58|29.87| 0.00| 47| 45| 92|03| 3| 10| 520|30.11| 0.00| 59| 33| 38|03| 2| 9| 538|30.04| 0.00| 68| 39| 35|17| 1| 4| |19| 0|30.01| 0.00| 44| 40| 86|05| 3| 14| 0|30.11| 0.00| 52| 35| 52|04| 0| 0| 0|30.07| 0.00| 60| 41| 49|10| 0| 2| |22| 0|30.11| 0.00| 43| 39| 85|34| 4| 16| 0|30.13| 0.00| 43| 34| 71|04| 0| 0| 0|30.09| 0.00| 50| 41| 70|10| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 4 | MAR 5 | MAR 6 | | | | | |01| 0|30.09| 0.00| 46| 39| 78|10| 0| 0| 0|30.10| 0.00| 52| 47| 84|19| 1| 3| 0|30.15| 0.00| 56| 48| 75|27| 0| 3| |04| 0|30.09| 0.00| 42| 37| 83|10| 0| 0| 0|30.06| 0.00| 48| 45| 90|20| 0| 3| 0|30.14| 0.00| 53| 47| 79|05| 0| 0| |07| 12|30.15| 0.00| 40| 38| 90|10| 0| 0| 9|30.10| 0.00| 47| 45| 92|24| 0| 1| 14|30.18| 0.00| 50| 46| 85|22| 0| 0| |10| 573|30.16| 0.00| 62| 50| 66|21| 0| 9| 246|30.14| 0.00| 57| 51| 79|23| 1| 6| 295|30.23| 0.00| 58| 50| 76|09| 0| 4| |13| 853|30.09| 0.00| 71| 46| 41|23| 1| 9| 432|30.11| 0.00| 66| 47| 49|23| 2| 9| 350|30.17| 0.00| 66| 52| 61|21| 0| 5| |16| 383|30.05| 0.00| 71| 46| 40|22| 1| 9| 183|30.08| 0.00| 65| 45| 49|35| 0| 6| 206|30.14| 0.00| 67| 53| 61|25| 1| 4| |19| 0|30.06| 0.00| 62| 46| 55|21| 0| 3| 0|30.10| 0.00| 60| 43| 54|25| 0| 2| 0|30.13| 0.00| 63| 52| 66|13| 0| 1| |22| 0|30.08| 0.00| 57| 48| 72|23| 2| 6| 0|30.16| 0.00| 58| 47| 66|21| 0| 3| 0|30.17| 0.00| 60| 50| 70|20| 1| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 7 | MAR 8 | MAR 9 | | | | | |01| 0|30.14| 0.00| 57| 49| 76|31| 1| 3| 0|29.98| 0.00| 57| 57|100|04| 1| 5| 0|29.76| 0.04| 59| 57| 93|21| 1| 12| |04| 0|30.12| 0.00| 55| 50| 83|12| 0| 1| 0|29.92| 0.00| 59| 59|100|22| 1| 4| 0|29.73| 0.00| 53| 51| 92|23| 0| 1| |07| 0|30.13| 0.00| 54| 50| 88|12| 0| 3| 0|29.90| 0.00| 60| 60|100|34| 1| 4| 14|29.78| 0.00| 50| 48| 94|23| 0| 0| |10| 40|30.14| 0.00| 56| 52| 89|08| 0| 4| 40|29.89| 0.04| 61| 61|100|04| 1| 6| 615|29.80| 0.00| 68| 50| 53|24| 3| 10| |13| 88|30.08| 0.00| 60| 54| 80|08| 1| 7| 33|29.80| 0.00| 64| 64|100|20| 0| 7| 891|29.72| 0.00| 78| 43| 29|23| 2| 9| |16| 76|30.02| 0.00| 61| 56| 86|08| 0| 3| 33|29.72| 0.00| 65| 65|100|22| 2| 10| 548|29.64| 0.00| 80| 40| 24|25| 2| 7| |19| 0|30.03| 0.00| 61| 56| 86|09| 1| 5| 0|29.73| 0.00| 66| 65| 98|22| 1| 5| 0|29.64| 0.00| 72| 38| 30|24| 0| 0| |22| 0|30.05| 0.00| 58| 56| 93|06| 0| 5| 0|29.76| 0.00| 65| 64| 95|23| 2| 9| 0|29.65| 0.00| 61| 47| 59|24| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 10 | MAR 11 | MAR 12 | | | | | |01| 0|29.59| 0.00| 57| 52| 83|24| 0| 1| 0|29.57| 0.00| 49| 37| 63|29| 0| 0| 0|29.83| 0.00| 49| 38| 64|32| 4| 10| |04| 0|29.57| 0.00| 61| 59| 96|21| 2| 13| 0|29.61| 0.00| 46| 37| 71|26| 0| 0| 0|29.82| 0.00| 47| 37| 69|32| 4| 10| |07| 18|29.57| 0.00| 58| 57| 97|20| 0| 0| 18|29.69| 0.00| 43| 34| 71|31| 0| 0| 14|29.91| 0.00| 45| 36| 70|31| 3| 10| |10| 330|29.59| 0.00| 66| 65| 95|22| 2| 12| 605|29.72| 0.00| 59| 42| 53|02| 1| 5| 622|29.95| 0.00| 59| 37| 43|29| 6| 13| |13| 134|29.52| 0.00| 80| 59| 48|23| 2| 9| 928|29.66| 0.00| 73| 40| 31|30| 2| 9| 895|29.89| 0.00| 69| 35| 28|32| 5| 18| |16| 550|29.50| 0.00| 79| 36| 21|27| 6| 15| 538|29.64| 0.00| 73| 36| 26|03| 0| 5| 552|29.83| 0.00| 70| 32| 24|26| 9| 17| |19| 0|29.54| 0.00| 69| 32| 25|30| 0| 1| 0|29.72| 0.00| 62| 32| 32|01| 0| 4| 0|29.82| 0.00| 64| 31| 29|28| 0| 1| |22| 0|29.59| 0.00| 55| 37| 50|30| 0| 0| 0|29.80| 0.00| 55| 36| 49|32| 3| 9| 0|29.84| 0.00| 53| 37| 53|25| 1| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 13 | MAR 14 | MAR 15 | | | | | |01| 0|29.86| 0.00| 52| 34| 50|31| 0| 2| 0|29.80| 0.00| 49| 37| 64|33| 0| 0| 0|29.93| 0.00| 58| 47| 68|23| 0| 0| |04| 0|29.87| 0.00| 43| 32| 64|27| 0| 0| 0|29.77| 0.00| 44| 36| 73|33| 0| 0| 0|29.95| 0.00| 54| 50| 87|04| 0| 3| |07| 16|29.90| 0.00| 44| 31| 61|32| 0| 1| 21|29.85| 0.00| 43| 37| 81|33| 0| 0| 0|30.02| 0.00| 53| 46| 79|04| 2| 7| |10| 629|29.93| 0.00| 64| 40| 41|32| 3| 7| 53|29.89| 0.00| 53| 44| 71|33| 0| 1| 251|30.11| 0.00| 56| 48| 75|04| 3| 9| |13| 905|29.87| 0.00| 74| 34| 23|30| 7| 15| 881|29.86| 0.00| 80| 49| 33|27| 0| 5| 812|30.11| 0.00| 64| 49| 58|07| 4| 11| |16| 561|29.78| 0.00| 76| 34| 22|30| 1| 7| 742|29.81| 0.00| 83| 46| 27|21| 2| 6| 777|30.06| 0.00| 68| 51| 55|08| 2| 9| |19| 0|29.77| 0.00| 68| 35| 29|33| 0| 0| 56|29.83| 0.00| 78| 43| 29|19| 1| 3| 35|30.08| 0.00| 64| 49| 60|04| 1| 6| |22| 0|29.81| 0.00| 55| 39| 56|33| 0| 0| 0|29.89| 0.00| 66| 46| 49|12| 0| 1| 0|30.16| 0.00| 59| 48| 66|06| 2| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 16 | MAR 17 | MAR 18 | | | | | |01| 0|30.21| 0.05| 54| 50| 88|05| 2| 8| 0|30.25| 0.00| 47| 44| 91|30| 0| 0| 0|30.14| 0.00| 51| 43| 76|08| 0| 0| |04| 0|30.17| 0.00| 52| 50| 92|05| 3| 9| 0|30.19| 0.00| 47| 45| 92|35| 0| 4| 0|30.14| 0.00| 51| 43| 76|08| 0| 0| |07| 0|30.20| 0.06| 51| 49| 93|04| 1| 5| 0|30.20| 0.00| 46| 43| 91|32| 0| 3| 0|30.14| 0.00| 51| 43| 76|08| 0| 0| |10| 9|30.27| 0.28| 51| 50| 95|32| 4| 10| 79|30.23| 0.00| 54| 50| 88|32| 1| 6| 60|30.19| 0.00| 51| 39| 64|08| 2| 6| |13| 165|30.25| 0.06| 52| 52| 98|02| 1| 7| 747|30.20| 0.00| 64| 50| 60|34| 5| 5| 888|30.16| 0.00| 61| 42| 50|08| 1| 5| |16| 193|30.22| 0.00| 54| 52| 93|04| 2| 7| 738|30.10| 0.00| 70| 43| 38|05| 1| 6| 747|30.04| 0.00| 66| 44| 45|02| 0| 3| |19| 28|30.23| 0.00| 54| 51| 90|29| 1| 6| 107|30.08| 0.00| 65| 40| 41|07| 2| 5| 109|30.01| 0.00| 64| 43| 45|10| 0| 2| |22| 0|30.27| 0.00| 53| 50| 91|34| 0| 3| 0|30.09| 0.00| 56| 43| 60|08| 0| 0| 0|30.01| 0.00| 55| 44| 66|10| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.45 | 0.46 | 0.46 | 0.47 | 0.51 | 0.53 | 0.53 | 0.56 | 0.66 | 0.73 | 0.82 | 0.83 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 09 | 09 | 09 | 24 | 24 | 24 | 24 | 20 | 20 | 20 | 20 | 20 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0044 | 0044 | 0044 | 2100 | 2106 | 2114 | 2114 | 0759 | 0808 | 0827 | 0851 | 0857 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 March 2010: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 19 | MAR 20 | MAR 21 | | | | | |01| 0|29.99| 0.00| 51| 42| 71|10| 0| 0| 0|29.82| 0.00| 61| 56| 83|22| 0| 3| 0|30.19| 0.00| 37| 27| 68|30| 4| 14| |04| 0|29.95| 0.00| 50| 45| 83|10| 0| 0| 0|29.79| 0.00| 61| 56| 85|17| 0| 6| 0|30.14| 0.00| 37| 26| 64|28| 6| 15| |07| 0|29.94| 0.00| 53| 50| 91|23| 1| 4| 0|29.89| 0.43| 49| 45| 86|28| 5| 13| 0|30.14| 0.00| 37| 24| 61|29| 8| 14| |10| 130|29.94| 0.00| 57| 55| 93|22| 1| 6| 95|30.01| 0.00| 41| 38| 90|34| 3| 15| 46|30.14| 0.00| 43| 24| 47|31| 12| 23| |13| 972|29.89| 0.00| 71| 55| 57|24| 3| 16| 334|30.10| 0.00| 41| 34| 74|02| 7| 24| 911|30.10| 0.00| 54| 24| 31|30| 9| 22| |16| 330|29.81| 0.00| 75| 51| 44|25| 1| 10| 202|30.11| 0.00| 41| 30| 66|32| 13| 23| 759|30.02| 0.00| 59| 23| 25|32| 15| 25| |19| 25|29.82| 0.00| 70| 52| 53|27| 3| 8| 35|30.16| 0.00| 39| 28| 65|32| 7| 19| 125|30.03| 0.00| 58| 21| 24|32| 9| 21| |22| 0|29.85| 0.00| 64| 54| 70|25| 2| 11| 0|30.22| 0.00| 39| 27| 64|31| 9| 19| 0|30.09| 0.00| 49| 27| 43|33| 1| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 22 | MAR 23 | MAR 24 | | | | | |01| 0|30.09| 0.00| 44| 27| 51|29| 2| 5| 0|29.94| 0.00| 49| 35| 57|22| 0| 0| 0|29.86| 0.00| 63| 57| 80|24| 2| 6| |04| 0|30.06| 0.00| 41| 26| 55|30| 0| 0| 0|29.92| 0.00| 48| 36| 64|22| 0| 0| 0|29.84| 0.00| 61| 57| 86|22| 0| 2| |07| 0|30.12| 0.00| 34| 26| 72|30| 0| 3| 0|29.94| 0.00| 44| 36| 74|22| 0| 1| 0|29.86| 0.00| 60| 57| 91|22| 0| 0| |10| 153|30.16| 0.00| 51| 34| 51|23| 0| 2| 188|29.95| 0.00| 57| 47| 71|21| 1| 5| 232|29.86| 0.00| 64| 61| 91|21| 0| 7| |13| 974|30.09| 0.00| 68| 31| 25|25| 0| 2| 928|29.90| 0.00| 75| 49| 41|23| 3| 10| 111|29.86| 0.00| 66| 60| 83|22| 2| 7| |16| 823|30.00| 0.00| 74| 29| 19|23| 0| 5| 759|29.81| 0.00| 78| 51| 40|24| 2| 11| 88|29.79| 0.00| 65| 62| 88|22| 0| 2| |19| 60|29.95| 0.00| 69| 34| 27|20| 0| 5| 111|29.82| 0.00| 73| 53| 49|22| 2| 9| 16|29.74| 0.00| 64| 62| 93|23| 0| 5| |22| 0|29.97| 0.00| 58| 35| 43|22| 0| 2| 0|29.87| 0.00| 63| 55| 75|21| 1| 11| 0|29.84| 0.00| 56| 55| 95|19| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 25 | MAR 26 | MAR 27 | | | | | |01| 0|29.90| 0.00| 55| 55|100|32| 4| 16| 0|30.05| 0.00| 50| 41| 70|02| 0| 0| 0|29.76| 0.00| 55| 47| 75|22| 2| 6| |04| 0|29.94| 0.00| 52| 47| 83|32| 0| 5| 0|30.04| 0.00| 46| 39| 76|02| 0| 1| 0|29.78| 0.00| 54| 51| 89|24| 0| 10| |07| 0|29.98| 0.00| 46| 38| 72|30| 5| 13| 0|30.06| 0.00| 41| 36| 81|02| 0| 0| 0|29.79| 0.00| 51| 49| 91|25| 0| 2| |10| 54|30.03| 0.00| 53| 41| 64|32| 13| 24| 111|30.08| 0.00| 53| 47| 80|07| 1| 5| 144|29.82| 0.00| 61| 56| 83|23| 1| 7| |13| 909|30.03| 0.00| 64| 46| 51|31| 6| 18| 905|30.01| 0.00| 70| 47| 45|21| 1| 6| 907|29.80| 0.00| 79| 44| 29|26| 2| 12| |16| 751|29.99| 0.00| 67| 44| 43|31| 9| 19| 745|29.87| 0.00| 75| 46| 35|17| 1| 9| 759|29.77| 0.00| 81| 33| 18|27| 8| 16| |19| 58|29.99| 0.00| 63| 43| 48|00| 0| 6| 102|29.83| 0.00| 69| 47| 44|22| 1| 10| 113|29.84| 0.00| 74| 29| 19|30| 6| 13| |22| 0|30.03| 0.00| 55| 43| 64|02| 0| 0| 0|29.82| 0.00| 60| 46| 58|20| 0| 5| 0|29.96| 0.00| 62| 40| 45|03| 1| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 28 | MAR 29 | MAR 30 | | | | | |01| 0|29.99| 0.00| 55| 40| 58|01| 0| 2| 0|30.10| 0.00| 48| 35| 61|06| 0| 0| 0|29.94| 0.00| 55| 42| 61|20| 0| 1| |04| 0|30.02| 0.00| 50| 39| 67|27| 0| 3| 0|30.10| 0.00| 42| 34| 74|06| 0| 0| 0|29.93| 0.00| 55| 41| 59|20| 1| 7| |07| 0|30.09| 0.00| 50| 39| 67|32| 1| 7| 0|30.11| 0.00| 40| 35| 82|06| 0| 0| 0|29.93| 0.00| 51| 37| 60|24| 0| 3| |10| 74|30.17| 0.00| 57| 38| 49|31| 7| 16| 76|30.15| 0.00| 54| 45| 70|06| 0| 1| 65|29.97| 0.00| 65| 41| 42|22| 5| 12| |13| 918|30.13| 0.00| 67| 37| 33|34| 4| 15| 923|30.07| 0.00| 74| 42| 31|22| 0| 4| 932|29.95| 0.00| 77| 41| 28|23| 3| 11| |16| 759|30.04| 0.00| 72| 35| 26|31| 8| 19| 749|29.98| 0.00| 77| 41| 27|21| 0| 4| 749|29.88| 0.00| 80| 46| 30|22| 2| 13| |19| 116|30.05| 0.00| 67| 33| 28|02| 1| 6| 114|29.95| 0.00| 73| 39| 30|24| 1| 6| 139|29.87| 0.00| 75| 44| 33|26| 1| 7| |22| 0|30.10| 0.00| 54| 34| 47|06| 0| 0| 0|29.97| 0.00| 62| 42| 47|19| 0| 3| 0|29.88| 0.00| 65| 45| 49|24| 2| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAR 31 | | | | | | | |01| 0|29.88| 0.00| 58| 46| 64|24| 1| 13| | | |04| 0|29.86| 0.00| 56| 52| 88|21| 0| 4| | | |07| 0|29.88| 0.00| 58| 55| 90|22| 2| 10| | | |10| 67|29.91| 0.00| 65| 58| 78|24| 2| 11| | | |13| 921|29.90| 0.00| 79| 59| 50|21| 2| 10| | | |16| 751|29.85| 0.00| 84| 59| 44|24| 2| 11| | | |19| 125|29.84| 0.00| 79| 60| 51|25| 2| 12| | | |22| 0|29.90| 0.00| 68| 60| 76|20| 1| 8| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+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|29.960| 52| 44| 74| 1.1| 30 | 0.5| |04| 0|29.947| 50| 44| 81| 0.8| 29 | 0.4| |07| 5|29.979| 48| 43| 83| 1.1| 29 | 0.8| |10| 224|30.013| 57| 47| 71| 2.4| 31 | 1.5| |13| 737|29.975| 68| 46| 49| 2.6| 30 | 1.2| |16| 535|29.918| 70| 44| 45| 3.0| 30 | 2.0| |19| 52|29.924| 65| 44| 49| 1.4| 30 | 0.8| |22| 0|29.969| 57| 45| 65| 1.0| 29 | 0.5| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)March 2010: 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|0.04|0.26|0.04|0.06| | | | | | |0.01|0.08| |0.26|0.01|0.02|0.01| | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | |0.01| |0.01| | | | | |0.01| | |07 08| | | |0.01| |0.01| |0.02|0.01|0.03| | | | | | | | | | | | | | |08 09|0.46| | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | |0.01| | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | |0.12|15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.06|0.02|0.02| | | |0.12| |0.02|0.12|0.25|0.20|0.08|0.03|0.03|0.04|0.01| | | | | | | |16 17| | | | | | |0.01| | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | |0.35|0.27|0.21| | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | |0.01| |0.01| | | | | | | | | | |0.02|0.03|0.01|0.48|0.06| | |24 25| | | | | | | | | | |0.01| | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.56|0.28|0.06|0.07|0.01|0.01|0.50|0.29|0.24|0.15|0.27|0.28|0.08|0.30|0.04|0.07|0.02|0.02|0.03|0.01|0.48|0.07|0.00|0.12|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.)