LOCAL CLIMATOLOGICAL DATA Monthly Summary April 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| 81.2 | 61.8 | 71.5 | 69.9 | 60| 72| 0| 7|.........| 0| 0.00| 0.0| 29.91| 29.70|29.825| 2.3| 2.2|236| 18| SW| 6|277| 223 | |02| 79.8 | 61.0 | 70.4 | 70.7 | 62| 75| 0| 6|.........| 0| 0.00| 0.0| 29.89| 29.65|29.742| 1.4| 1.3|232| 19| S| 5|216| 120 | |03| 86.5 | 43.2 | 64.8 | 67.0 | 44| 50| 0| 0|.........| 0| 0.00| 0.0| 29.98| 29.85|29.914| 0.2| 0.1|155| 10| SW| 5|111| 256 | |04| 82.4 | 66.1 | 74.3 | 71.9 | 67| 84| 0| 9|.........| 0| 0.03| 0.0| 29.96| 29.86|29.908| 0.8| 0.8|233| 13| S| 5|252| 115 | |05| 85.5 | 67.4 | 76.4 | 73.6 | 65| 77| 0| 12|.........| 0| 0.00| 0.0| 30.01| 29.88|29.948| 1.4| 1.4|233| 14|WSW| 5|234| 174 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 82.8 | 66.0 | 74.4 | 72.6 | 63| 73| 0| 10|.........| 0| 0.00| 0.0| 29.93| 29.69|29.790| 2.0| 2.0|229| 18|WSW| 6|217| 198 | |07| 76.8 | 56.9 | 66.9 | 68.5 | 52| 63| 0| 2|.........| 0| 0.02| 0.0| 30.06| 29.69|29.812| 1.4| 0.5| 15| 24| NW| 8| 40| 120 | |08| 70.6 | 43.6 | 57.1*| 57.3 | 34| 43| 7| 0|.........| 0| 0.00| 0.0| 30.17| 30.03|30.094| 1.2| 1.0| 23| 14| W| 6| 60| 280 | |09| 76.7 | 39.5*| 58.1 | 58.5 | 38| 52| 6| 0|.........| 0| 0.00| 0.0| 30.16| 30.04|30.091| 0.3| 0.3|226| 11| SW| 2|231| 235 | |10| 80.3 | 51.6 | 65.9 | 65.3 | 55| 71| 0| 1|.........| 0| 0.00| 0.0| 30.14| 30.05|30.093| 0.7| 0.6|233| 13|SSW| 3|204| 228 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 70.3 | 60.2 | 65.3 | 64.4 | 60| 86| 0| 0|.........| 0| 0.00| 0.0| 30.18| 30.09|30.131| 0.3| 0.1|126| 10| SW| 3|228| 61 | |12| 80.5 | 57.0 | 68.8 | 67.9 | 54| 67| 0| 4|.2.......| 0| 0.00| 0.0| 30.15| 30.03|30.093| 0.7| 0.7| 86| 13|ENE| 5| 87| 267 | |13| 81.6 | 52.6 | 67.1 | 67.9 | 56| 68| 0| 3|.........| 0| 0.00| 0.0| 30.09| 29.99|30.057| 0.6| 0.6| 80| 11|ENE| 6| 88| 233 | |14| 78.3 | 60.4 | 69.4 | 68.4 | 61| 78| 0| 4|.........| 0| 0.00| 0.0| 30.17| 30.07|30.109| 1.0| 1.0| 85| 14| E| 6| 86| 164 | |15| 76.5 | 63.5 | 70.0 | 68.3 | 64| 88| 0| 6|.........| 0| 0.76| 0.0| 30.14| 30.06|30.092| 1.4| 1.3| 86| 14| E| 6| 92| 100 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 73.3 | 63.9 | 68.6 | 67.0 | 64| 92| 0| 4|.........| 0| 0.01| 0.0| 30.12| 29.99|30.063| 0.6| 0.5| 88| 11|ENE| 4| 89| 80 | |17| 77.4 | 61.3 | 69.3 | 68.0 | 64| 89| 0| 4|..3......| 0| 0.38| 0.0| 30.00| 29.82|29.926| 0.8| 0.6|260| 12|WNW| 6|287| 121 | |18| 68.3 | 58.3 | 63.3 | 62.2 | 56| 81| 2| 0|.........| 0| 0.00| 0.0| 30.01| 29.91|29.945| 2.3| 2.2|308| 14|NNW| 9|325| 104 | |19| 63.2 | 53.3 | 58.3 | 58.3 | 53| 83| 7| 0|.........| 0| 0.00| 0.0| 30.10| 29.98|30.028| 1.4| 1.4| 30| 12|ENE| 5|331| 98 | |20| 75.3 | 53.5 | 64.4 | 64.3 | 54| 72| 0| 0|.........| 0| 0.00| 0.0| 30.04| 29.90|29.974| 0.2| 0.2| 60| 6| N| 3| 88| 266 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 82.4 | 54.1 | 68.3 | 68.6 | 58| 70| 0| 3|.........| 0| 0.00| 0.0| 29.91| 29.75|29.838| 0.5| 0.5|227| 11| SW| 4|217| 265 | |22| 73.3 | 62.9 | 68.1 | 67.4 | 65| 92| 0| 3|.........| 0| 0.02| 0.0| 29.79| 29.60|29.692| 0.9| 0.8|232| 14|WSW| 4|217| 43 | |23| 86.3 | 68.3 | 77.3 | 75.0 | 68| 81| 0| 12|..3......| 0| T | 0.0| 29.61| 29.47|29.550| 0.4| 0.2|254| 21| SW| 8|249| 192 | |24| 81.2 | 55.0 | 68.1 | 68.8 | 49| 55| 0| 3|..3......| 0| 0.22| 0.0| 29.73| 29.47|29.648| 3.2| 2.9|281| 27|NNW| 15|338| 309 | |25| 83.4 | 55.0 | 69.2 | 69.4 | 46| 47| 0| 4|.........| 0| 0.00| 0.0| 29.86| 29.71|29.792| 2.5| 2.5|317| 21| NW| 11|320| 315 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 89.7*| 52.8 | 71.3 | 70.5 | 52| 54| 0| 7|.........| 0| 0.00| 0.0| 29.94| 29.66|29.785| 1.5| 0.1| 48| 17| N| 9| 45| 291 | |27| 76.5 | 52.9 | 64.7 | 63.9 | 45| 52| 0| 0|.........| 0| 0.00| 0.0| 30.09| 29.91|29.986| 0.6| 0.6| 38| 12| N| 3| 12| 225 | |28| 83.0 | 47.7 | 65.3 | 67.0 | 49| 57| 0| 1|.........| 0| 0.00| 0.0| 30.00| 29.81|29.921| 0.6| 0.6|223| 11|SSW| 4|217| 301 | |29| 87.4 | 62.0 | 74.7 | 72.5 | 62| 72| 0| 10|.........| 0| 0.00| 0.0| 29.82| 29.51|29.662| 2.1| 2.1|229| 16| S| 6|212| 233 | |30| 89.7 | 71.8 | 80.8*| 78.1 | 68| 71| 0| 16|.........| 0| 0.03| 0.0| 29.54| 29.40|29.466| 0.9| 0.6|220| 14| S| 5|228| 194 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2380.2|1723.6|------|------|---|----| 22| 131| Days | 1.47| 0.0| 30.18| 29.40|29.899| 1.1| 0.4|270| 27|NNW| 15|338| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 79.3| 57.5| 68.4 | 67.8 | 56|70.6|----|----|≥.01 Inch 8|11.49| 0.4| 11 | 30 |------|----|----|---| 24 | 24 | 194| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |2154| 142|Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 1| 0.77| 15-16| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 2 | 0 | 0 | 0 |----|----| Clear 16 Partly Cloudy 3 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 April 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |01| 0|29.91| 0.00| 65| 60| 82|23| 1| 7| 0|29.72| 0.00| 68| 64| 87|21| 1| 7| 0|29.90| 0.00| 58| 46| 63|02| 0| 2| |04| 0|29.87| 0.00| 64| 58| 81|21| 2| 7| 0|29.66| 0.00| 68| 66| 91|23| 2| 9| 0|29.91| 0.00| 51| 43| 76|02| 0| 0| |07| 0|29.87| 0.00| 62| 57| 84|23| 2| 9| 0|29.69| 0.00| 68| 65| 89|21| 2| 11| 0|29.93| 0.00| 44| 39| 80|02| 0| 0| |10| 111|29.91| 0.00| 67| 58| 72|23| 4| 16| 121|29.77| 0.00| 68| 63| 82|24| 1| 9| 163|29.97| 0.00| 64| 46| 53|26| 0| 1| |13| 953|29.85| 0.00| 78| 61| 56|22| 3| 13| 190|29.77| 0.00| 72| 64| 76|24| 3| 10| 949|29.97| 0.00| 81| 34| 18|07| 1| 5| |16| 847|29.74| 0.00| 81| 63| 54|27| 3| 14| 461|29.73| 0.00| 76| 66| 72|24| 0| 7| 663|29.89| 0.00| 86| 41| 21|28| 1| 7| |19| 32|29.73| 0.00| 73| 62| 70|24| 1| 7| 63|29.75| 0.00| 77| 48| 35|27| 0| 1| 162|29.87| 0.00| 80| 50| 35|23| 0| 3| |22| 0|29.73| 0.00| 69| 62| 77|23| 4| 15| 0|29.82| 0.00| 66| 59| 78|17| 0| 0| 0|29.87| 0.00| 72| 52| 51|23| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |01| 0|29.90| 0.00| 66| 59| 77|20| 0| 3| 0|29.97| 0.00| 69| 64| 83|19| 1| 10| 0|29.90| 0.00| 67| 61| 82|21| 1| 6| |04| 0|29.88| 0.00| 67| 64| 90|21| 0| 5| 0|29.94| 0.00| 68| 64| 89|22| 0| 3| 0|29.84| 0.00| 67| 61| 81|21| 2| 9| |07| 0|29.90| 0.00| 67| 67|100|16| 0| 5| 0|29.95| 0.00| 68| 66| 93|21| 1| 7| 0|29.81| 0.00| 67| 63| 87|22| 2| 9| |10| 69|29.95| 0.00| 68| 68|100|21| 1| 4| 220|30.00| 0.00| 72| 69| 91|24| 1| 7| 197|29.83| 0.00| 71| 65| 81|21| 1| 7| |13| 251|29.94| 0.00| 75| 71| 89|22| 2| 11| 350|29.99| 0.00| 78| 66| 68|24| 1| 9| 965|29.79| 0.00| 81| 65| 60|21| 3| 10| |16| 348|29.89| 0.00| 80| 67| 65|24| 0| 11| 826|29.92| 0.00| 85| 66| 53|24| 2| 12| 455|29.73| 0.00| 81| 64| 57|23| 4| 12| |19| 46|29.88| 0.00| 78| 67| 69|26| 1| 6| 139|29.88| 0.00| 79| 65| 62|26| 2| 12| 63|29.69| 0.00| 77| 63| 63|21| 3| 9| |22| 0|29.92| 0.00| 71| 66| 84|20| 0| 3| 0|29.92| 0.00| 71| 64| 79|23| 2| 10| 0|29.74| 0.00| 70| 62| 76|22| 1| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |01| 0|29.71| 0.00| 67| 63| 86|22| 1| 8| 0|30.07| 0.00| 54| 34| 47|03| 0| 3| 0|30.09| 0.00| 47| 36| 67|04| 0| 0| |04| 0|29.70| 0.00| 68| 64| 86|22| 1| 10| 0|30.08| 0.00| 48| 34| 57|03| 2| 10| 0|30.07| 0.00| 43| 35| 74|04| 0| 0| |07| 0|29.73| 0.00| 68| 64| 88|21| 0| 3| 0|30.13| 0.00| 44| 33| 64|30| 1| 3| 0|30.11| 0.00| 40| 34| 82|04| 0| 0| |10| 121|29.79| 0.00| 69| 67| 93|18| 0| 1| 46|30.16| 0.00| 56| 35| 45|02| 1| 11| 63|30.15| 0.00| 59| 39| 48|24| 1| 5| |13| 165|29.84| 0.00| 64| 58| 81|24| 0| 0| 962|30.14| 0.00| 65| 34| 31|04| 3| 11| 886|30.12| 0.00| 72| 37| 28|08| 1| 5| |16| 243|29.82| 0.00| 74| 41| 30|35| 3| 11| 817|30.05| 0.00| 70| 34| 26|02| 2| 7| 668|30.06| 0.00| 76| 39| 27|13| 1| 5| |19| 171|29.84| 0.00| 74| 44| 34|35| 0| 2| 183|30.03| 0.00| 67| 32| 27|06| 0| 4| 105|30.04| 0.00| 70| 37| 29|21| 0| 4| |22| 0|29.98| 0.00| 64| 33| 31|05| 4| 12| 0|30.09| 0.00| 55| 34| 45|04| 0| 0| 0|30.08| 0.00| 60| 43| 53|22| 1| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |01| 0|30.11| 0.00| 56| 49| 76|21| 0| 3| 0|30.12| 0.00| 63| 57| 81|21| 1| 6| 0|30.14| 0.00| 63| 61| 91|21| 0| 0| |04| 0|30.07| 0.00| 52| 47| 84|22| 0| 0| 0|30.10| 0.00| 61| 57| 87|21| 0| 3| 0|30.10| 0.00| 62| 59| 93|21| 0| 0| |07| 0|30.09| 0.00| 53| 50| 91|22| 0| 0| 0|30.11| 0.00| 60| 57| 89|21| 0| 0| 0|30.09| 0.00| 58| 58|100|21| 0| 2| |10| 243|30.13| 0.00| 64| 57| 79|15| 0| 3| 100|30.16| 0.00| 61| 59| 93|08| 1| 4| 253|30.14| 0.00| 64| 62| 95|11| 0| 4| |13| 951|30.11| 0.00| 77| 56| 48|26| 2| 9| 264|30.17| 0.00| 65| 63| 92|08| 1| 4| 933|30.11| 0.00| 75| 50| 41|09| 4| 11| |16| 940|30.05| 0.00| 79| 59| 50|24| 2| 7| 144|30.13| 0.00| 70| 63| 77|09| 0| 1| 788|30.05| 0.00| 80| 43| 27|29| 1| 10| |19| 142|30.06| 0.00| 75| 58| 57|24| 1| 7| 23|30.11| 0.00| 69| 62| 78|08| 1| 5| 165|30.04| 0.00| 75| 47| 36|08| 2| 5| |22| 0|30.11| 0.00| 67| 57| 70|20| 1| 7| 0|30.13| 0.00| 66| 61| 83|21| 0| 0| 0|30.08| 0.00| 66| 53| 63|06| 0| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |01| 0|30.09| 0.00| 59| 51| 75|19| 0| 0| 0|30.09| 0.00| 63| 57| 79|06| 0| 1| 0|30.10| 0.00| 65| 61| 88|07| 0| 1| |04| 0|30.06| 0.00| 55| 49| 82|19| 0| 0| 0|30.09| 0.00| 61| 58| 91|11| 0| 1| | | | | | | | | | |07| 0|30.07| 0.00| 57| 54| 91|18| 0| 2| 0|30.11| 0.00| 62| 60| 93|07| 0| 2| 0|30.09| 0.00| 65| 64| 94|06| 1| 8| |10| 237|30.08| 0.00| 66| 61| 84|07| 1| 4| 206|30.16| 0.00| 68| 63| 86|09| 0| 5| 199|30.12| 0.00| 69| 64| 83|08| 5| 11| |13| 998|30.06| 0.00| 80| 59| 48|26| 1| 6|1097|30.16| 0.00| 75| 63| 67|06| 2| 11| 408|30.10| 0.00| 75| 63| 66|07| 1| 12| |16| 863|30.02| 0.00| 80| 58| 47|08| 3| 11| 378|30.09| 0.00| 76| 62| 62|08| 4| 11| 290|30.07| 0.00| 71| 68| 90|19| 0| 3| |19| 139|30.00| 0.00| 77| 58| 51|09| 0| 6| 54|30.07| 0.00| 73| 61| 66|08| 1| 6| 32|30.07| 0.09| 68| 66| 92|09| 1| 7| |22| 0|30.08| 0.00| 71| 57| 61|10| 1| 3| 0|30.11| 0.00| 68| 61| 78|07| 0| 4| 0|30.11| 0.00| 67| 67|100|07| 1| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |01| 0|30.12| 0.00| 66| 66|100|07| 1| 3| 0|30.00| 0.00| 66| 66|100|20| 0| 2| 0|29.94| 0.00| 61| 56| 83|28| 1| 4| |04| 0|30.09| 0.00| 64| 64|100|20| 0| 2| 0|29.95| 0.00| 65| 65|100|18| 0| 3| 0|29.91| 0.00| 59| 54| 84|28| 2| 4| |07| 0|30.09| 0.00| 64| 64|100|32| 0| 1| 0|29.95| 0.00| 65| 65|100|23| 0| 2| 0|29.91| 0.00| 59| 54| 85|29| 1| 5| |10| 195|30.11| 0.00| 66| 66|100|08| 1| 5| 62|29.97| 0.00| 66| 66|100|24| 0| 3| 197|29.96| 0.00| 63| 57| 82|29| 2| 6| |13| 199|30.08| 0.00| 68| 65| 89|06| 0| 3|1076|29.94| 0.00| 72| 66| 82|30| 1| 10| 417|29.96| 0.00| 66| 58| 76|29| 4| 10| |16| 213|30.02| 0.00| 72| 64| 78|07| 2| 6| 355|29.87| 0.00| 76| 66| 71|21| 1| 5| 165|29.93| 0.00| 66| 57| 73|30| 5| 10| |19| 26|30.00| 0.00| 69| 64| 84|22| 0| 3| 23|29.84| 0.00| 73| 64| 75|23| 1| 7| 25|29.94| 0.00| 65| 57| 77|33| 3| 11| |22| 0|30.02| 0.00| 67| 64| 90|21| 0| 0| 0|29.91| 0.00| 63| 58| 84|31| 2| 7| 0|29.99| 0.00| 60| 56| 86|33| 3| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.18 | 0.22 | 0.31 | 0.37 | 0.38 | 0.40 | 0.40 | 0.41 | 0.41 | 0.43 | 0.45 | 0.46 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 15 | 17 | 17 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1509 | 1929 | 1932 | 1937 | 1937 | 2039 | 2039 | 2039 | 2039 | 2039 | 2039 | 2039 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 April 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |01| 0|30.01| 0.00| 58| 56| 91|34| 2| 9| 0|30.04| 0.00| 59| 54| 83|05| 0| 3| 0|29.91| 0.00| 60| 54| 80|10| 0| 0| |04| 0|30.01| 0.00| 56| 54| 93|03| 2| 9| 0|29.99| 0.00| 57| 53| 88|02| 0| 1| 0|29.87| 0.00| 55| 52| 88|10| 0| 0| |07| 0|30.03| 0.00| 54| 52| 92|01| 2| 7| 0|30.00| 0.00| 54| 52| 93|02| 0| 0| 7|29.87| 0.00| 54| 52| 93|10| 0| 0| |10| 104|30.08| 0.00| 54| 51| 89|04| 1| 11| 483|30.03| 0.00| 63| 56| 77|02| 0| 4| 102|29.89| 0.00| 69| 60| 73|21| 1| 5| |13| 408|30.06| 0.00| 60| 52| 75|04| 3| 9| 315|30.01| 0.00| 72| 55| 56|20| 0| 2| 984|29.86| 0.00| 79| 61| 55|22| 1| 6| |16| 299|30.00| 0.00| 63| 53| 70|05| 0| 6| 772|29.92| 0.00| 74| 56| 54|07| 0| 3| 167|29.79| 0.00| 82| 60| 48|20| 0| 7| |19| 32|29.99| 0.00| 62| 54| 75|04| 0| 4| 162|29.90| 0.00| 72| 56| 56|07| 1| 3| 163|29.76| 0.00| 78| 60| 54|24| 1| 5| |22| 0|30.04| 0.00| 60| 54| 79|35| 1| 5| 0|29.93| 0.00| 65| 54| 69|10| 0| 0| 0|29.78| 0.00| 69| 59| 70|18| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |01| 0|29.77| 0.00| 65| 60| 84|18| 0| 4| 0|29.57| 0.00| 68| 68|100|22| 1| 5| 0|29.60| 0.18| 63| 58| 86|32| 10| 20| |04| 0|29.74| 0.00| 63| 60| 91|22| 1| 7| 0|29.56| 0.00| 69| 69|100|22| 2| 6| 0|29.65| 0.00| 58| 53| 84|32| 0| 2| |07| 0|29.71| 0.00| 64| 62| 93|07| 1| 5| 0|29.60| 0.00| 70| 70|100|22| 0| 0| 7|29.64| 0.00| 55| 52| 87|04| 0| 1| |10| 123|29.73| 0.00| 67| 67|100|03| 0| 5| 299|29.60| 0.00| 74| 72| 92|22| 0| 2| 568|29.66| 0.00| 67| 48| 50|27| 7| 17| |13| 79|29.70| 0.00| 71| 67| 86|21| 1| 7| 190|29.58| 0.00| 81| 69| 67|35| 1| 4| 972|29.66| 0.00| 78| 46| 32|25| 5| 14| |16| 90|29.64| 0.00| 73| 67| 83|22| 1| 7| 151|29.52| 0.00| 83| 67| 58|08| 0| 2| 798|29.63| 0.00| 81| 45| 28|24| 4| 14| |19| 11|29.62| 0.00| 69| 68| 96|03| 0| 3| 14|29.47| 0.00| 83| 64| 53|14| 0| 2| 197|29.66| 0.00| 79| 43| 28|27| 3| 10| |22| 0|29.63| 0.00| 68| 68|100|26| 1| 7| 0|29.51| 0.00| 71| 64| 81|08| 0| 2| 0|29.72| 0.00| 67| 46| 47|28| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |01| 0|29.72| 0.00| 61| 50| 67|27| 0| 3| 0|29.81| 0.00| 58| 48| 70|35| 0| 0| 0|29.93| 0.00| 59| 47| 64|00| 0| 2| |04| 0|29.75| 0.00| 61| 47| 60|32| 0| 0| 0|29.77| 0.00| 54| 46| 76|35| 0| 0| 0|29.91| 0.00| 58| 47| 66|04| 2| 6| |07| 9|29.81| 0.00| 55| 47| 73|31| 0| 2| 9|29.80| 0.00| 54| 46| 73|35| 0| 1| 11|29.97| 0.00| 53| 45| 74|34| 0| 1| |10| 545|29.85| 0.00| 69| 47| 45|32| 7| 16| 200|29.82| 0.00| 74| 47| 38|20| 1| 4| 230|30.07| 0.00| 60| 44| 56|34| 0| 5| |13| 970|29.84| 0.00| 78| 46| 32|31| 9| 16| 951|29.79| 0.00| 86| 56| 36|26| 1| 7| 483|30.05| 0.00| 70| 43| 38|07| 0| 5| |16| 802|29.78| 0.00| 82| 42| 24|33| 5| 17| 817|29.71| 0.00| 89| 60| 37|21| 1| 10| 795|29.97| 0.00| 76| 43| 31|07| 1| 7| |19| 200|29.77| 0.00| 79| 41| 25|32| 2| 8| 42|29.70| 0.00| 84| 55| 38|02| 1| 9| 113|29.95| 0.00| 73| 44| 36|06| 0| 2| |22| 0|29.81| 0.00| 66| 48| 52|35| 0| 0| 0|29.87| 0.00| 67| 51| 58|04| 4| 13| 0|30.00| 0.00| 62| 45| 52|01| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |01| 0|29.99| 0.00| 55| 45| 68|01| 0| 0| 0|29.81| 0.00| 64| 58| 79|20| 2| 7| 0|29.53| 0.00| 72| 67| 83|21| 1| 7| |04| 0|29.97| 0.00| 51| 44| 79|01| 0| 0| 0|29.75| 0.00| 63| 60| 90|22| 2| 9| 0|29.44| 0.00| 73| 68| 85|22| 4| 12| |07| 11|29.97| 0.00| 48| 44| 86|01| 0| 0| 7|29.73| 0.00| 64| 61| 88|21| 2| 10| 9|29.47| 0.00| 73| 68| 85|21| 1| 6| |10| 538|29.99| 0.00| 69| 44| 41|21| 0| 9| 237|29.73| 0.00| 69| 61| 75|27| 2| 14| 105|29.50| 0.00| 75| 68| 81|22| 1| 5| |13| 942|29.95| 0.00| 79| 47| 33|22| 2| 9|1206|29.68| 0.00| 80| 66| 62|21| 1| 9| 281|29.48| 0.00| 84| 70| 64|19| 1| 9| |16| 768|29.88| 0.00| 83| 52| 34|21| 2| 10| 830|29.57| 0.00| 87| 66| 49|23| 2| 11| 715|29.42| 0.00| 88| 69| 53|20| 0| 2| |19| 183|29.82| 0.00| 78| 54| 43|22| 1| 11| 79|29.52| 0.00| 80| 65| 61|26| 2| 14| 67|29.41| 0.00| 86| 67| 53|09| 0| 1| |22| 0|29.83| 0.00| 70| 56| 62|25| 0| 5| 0|29.54| 0.00| 73| 64| 73|23| 3| 13| 0|29.49| 0.00| 76| 62| 62|05| 1| 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|29.880| 63| 56| 78| 0.8| 28 | 0.4| |04| 0|29.850| 61| 56| 82| 0.8| 23 | 0.3| |07| 2|29.870| 61| 56| 86| 0.6| 23 | 0.2| |10| 192|29.903| 67| 58| 75| 1.3| 28 | 0.4| |13| 600|29.886| 75| 57| 59| 1.8| 27 | 0.5| |16| 499|29.828| 78| 57| 53| 1.6| 29 | 0.4| |19| 87|29.815| 75| 56| 56| 1.0| 28 | 0.3| |22| 0|29.857| 68| 57| 69| 1.0| 31 | 0.2| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)April 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| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | |0.01| |0.01| |0.01| | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | |0.02| | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | |0.03|0.24|0.03|0.01|0.04|0.01|0.40| | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | |0.01| | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | |0.38| | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | |0.01|0.01| | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24|0.17|0.05| | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | |0.03| | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.17|0.05|0.00|0.00|0.00|0.02|0.00|0.01|0.00|0.01|0.00|0.05|0.00|0.00|0.03|0.24|0.04|0.02|0.04|0.39|0.40|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.)