LOCAL CLIMATOLOGICAL DATA Monthly Summary May 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| 81.6 | 62.7 | 72.2 | 71.6 | 56| 58| 0| 8|.........| 0| 0.00| 0.0| 29.63| 29.46|29.534| 1.3| 1.1| 22| 13| N| 6| 46| 219 | |02| 87.6 | 58.9 | 73.3 | 71.2 | 46| 48| 0| 9|.........| 0| 0.00| 0.0| 29.81| 29.63|29.696| 0.8| 0.7|267| 13|WSW| 6|267| 283 | |03| 91.4 | 51.9 | 71.7 | 70.3 | 47| 48| 0| 7|.........| 0| 0.00| 0.0| 30.02| 29.79|29.895| 1.0| 0.7|278| 18| NW| 10|327| 267 | |04| 92.9 | 48.8*| 70.8 | 71.8 | 50| 52| 0| 6|.........| 0| 0.00| 0.0| 30.03| 29.81|29.933| 0.3| 0.3|222| 11| S| 3|247| 322 | |05| 97.1 | 59.2 | 78.2 | 79.6 | 52| 42| 0| 13|.........| 0| 0.00| 0.0| 29.85| 29.78|29.816| 0.8| 0.8|222| 16|SSW| 6|216| 321 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 93.2 | 63.9 | 78.6 | 77.9 | 62| 62| 0| 14|.........| 0| 0.00| 0.0| 29.86| 29.73|29.800| 1.0| 1.0|226| 15| SW| 5|215| 293 | |07| 98.0 | 69.8 | 83.9 | 80.0 | 66| 65| 0| 19|.........| 0| 0.00| 0.0| 30.04| 29.72|29.829| 1.7| 0.2|178| 17| N| 7| 53| 265 | |08| 74.9 | 63.9 | 69.4*| 69.1 | 49| 49| 0| 5|.........| 0| T | 0.0| 30.23| 30.04|30.137| 2.3| 2.2| 63| 20|ENE| 8| 43| 177 | |09| 78.8 | 66.4 | 72.6 | 70.8 | 57| 62| 0| 8|.........| 0| 0.00| 0.0| 30.14| 29.96|30.055| 0.9| 0.7| 93| 11| E| 4| 90| 83 | |10| 87.6 | 72.3 | 79.9 | 77.7 | 69| 75| 0| 15|.........| 0| 0.00| 0.0| 29.96| 29.73|29.845| 1.8| 1.7|224| 17| SW| 5|214| 148 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 91.8 | 71.5 | 81.7 | 79.9 | 69| 71| 0| 17|.........| 0| 0.00| 0.0| 29.86| 29.73|29.797| 1.3| 1.3|229| 15|SSW| 6|221| 200 | |12| | | | | | | | | | | | | | | | | | | | | | | | |13| 90.1 | 73.0 | 81.6 | 80.2 | 68| 69| 0| 17|.........| 0| 0.00| 0.0| 29.99| 29.76|29.884| 1.1| 0.7|218| 18| SW| 5|237| 187 | |14| 76.7 | 64.8 | 70.8 | 71.4 | 68| 90| 0| 6|..3......| 0| 0.06| 0.0| 30.06| 29.91|29.994| 0.8| 0.6| 73| 14|ENE| 7| 60| 50 | |15| 81.8 | 63.9 | 72.9 | 71.3 | 65| 83| 0| 8|..3......| 0| 0.57| 0.0| 30.06| 29.83|29.972| 0.8| 0.5| 49| 15| E| 6| 79| 237 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 86.1 | 62.9 | 74.5 | 75.1 | 67| 77| 0| 10|.........| 0| 0.00| 0.0| 30.01| 29.86|29.945| 0.1| 0.0| 20| 5|WSW| 3|272| 223 | |17| 94.3 | 67.1 | 80.7 | 77.7 | 67| 74| 0| 16|..3......| 0| 0.08| 0.0| 30.05| 29.86|29.959| 0.5| 0.1| 12| 22|ENE| 11| 53| 262 | |18| 90.5 | 64.7 | 77.6 | 76.4 | 66| 74| 0| 13|.........| 0| 0.01| 0.0| 29.96| 29.80|29.886| 0.4| 0.2|149| 11| E| 4| 84| 296 | |19| 90.3 | 67.8 | 79.1 | 78.7 | 69| 76| 0| 14|.........| 0| 0.00| 0.0| 29.81| 29.67|29.745| 1.0| 1.0|223| 16|SSW| 5|214| 244 | |20| 88.6 | 73.3 | 80.9 | 79.4 | 72| 80| 0| 16|.........| 0| 0.00| 0.0| 29.86| 29.70|29.754| 0.8| 0.7|220| 12| S| 4|202| 179 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 92.7 | 73.7 | 83.2 | 82.0 | 70| 70| 0| 19|.........| 0| 0.00| 0.0| 29.93| 29.81|29.861| 0.7| 0.7|221| 12| S| 4|213| 234 | |22| 91.8 | 74.4 | 83.1 | 81.4 | 71| 72| 0| 18|.........| 0| 0.00| 0.0| 29.89| 29.75|29.827| 1.3| 1.3|229| 12| SW| 5|214| 202 | |23| 93.4 | 75.6 | 84.5 | 82.2 | 72| 73| 0| 20|.........| 0| 0.00| 0.0| 29.88| 29.79|29.830| 1.2| 1.0|227| 14| E| 5|225| 223 | |24| 91.4 | 73.0 | 82.2 | 80.5 | 68| 68| 0| 17|.........| 0| 0.00| 0.0| 29.90| 29.80|29.851| 0.9| 0.6|213| 12| W| 4| 82| 236 | |25| 89.0 | 72.3 | 80.7 | 79.3 | 69| 73| 0| 16|.........| 0| 0.00| 0.0| 29.92| 29.81|29.866| 0.7| 0.5|214| 11| E| 4|257| 187 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 92.9 | 69.3 | 81.1 | 81.1 | 67| 65| 0| 16|.........| 0| 0.00| 0.0| 30.00| 29.87|29.937| 0.2| 0.1|141| 7|ENE| 3| 83| 299 | |27| 95.1 | 67.1 | 81.1 | 80.9 | 65| 62| 0| 16|..3......| 0| 0.10| 0.0| 29.98| 29.87|29.929| 0.3| 0.1| 31| 14|WNW| 7|283| 282 | |28| 95.6 | 68.8 | 82.2 | 83.0 | 65| 58| 0| 18|.........| 0| 0.00| 0.0| 29.92| 29.77|29.863| 0.3| 0.3| 84| 7| E| 3| 87| 294 | |29| 99.0*| 69.9 | 84.4 | 83.5 | 66| 58| 0| 20|..3......| 0| 0.00| 0.0| 29.81| 29.68|29.757| 0.3| 0.1|271| 10| SW| 4|242| 233 | |30| 98.2 | 72.3 | 85.3*| 84.8 | 66| 56| 0| 20|.........| 0| 0.00| 0.0| 29.86| 29.73|29.769| 0.3| 0.3|224| 11|SSW| 3|218| 290 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 98.0 | 70.4 | 84.2 | 84.2 | 66| 59| 0| 19|.........| 0| 0.00| 0.0| 29.93| 29.83|29.878| 0.3| 0.3|211| 9|WSW| 2| 84| 313 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2710.4|2013.6|------|------|---|----| 0| 420| Days | 0.82| 0.0| 30.23| 29.46|29.861| 0.8| 0.3|214| 22|ENE| 11| 53| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 90.3| 67.1| 78.7 | 77.8 | 64|65.7|----|----|≥.01 Inch 5|12.31| 0.4| 8 | 1 |------|----|----|---| 17 | 17 | 235| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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| 562|Thunder 5|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.63| 14-15| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 20 | 0 | 0 | 0 |----|----| Clear 12 Partly Cloudy 9 Cloudy 9 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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 May 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 1 | MAY 2 | MAY 3 | | | | | |01| 0|29.48| 0.00| 72| 60| 65|03| 0| 4| 0|29.64| 0.00| 60| 51| 70|35| 0| 0| 0|29.81| 0.00| 59| 45| 59|25| 0| 0| |04| 0|29.52| 0.00| 69| 60| 74|33| 0| 3| 0|29.64| 0.00| 59| 51| 75|35| 1| 1| 0|29.80| 0.00| 55| 44| 66|25| 0| 0| |07| 5|29.55| 0.00| 65| 55| 71|02| 1| 6| 5|29.67| 0.00| 61| 53| 76|24| 0| 3| 12|29.83| 0.00| 52| 42| 70|25| 0| 0| |10| 234|29.56| 0.00| 68| 49| 51|04| 4| 11| 102|29.74| 0.00| 63| 56| 77|24| 0| 0| 557|29.90| 0.00| 78| 51| 39|22| 1| 7| |13| 967|29.55| 0.00| 75| 51| 44|02| 2| 9| 967|29.72| 0.00| 83| 44| 25|27| 3| 10| 956|29.93| 0.00| 88| 46| 23|23| 1| 11| |16| 691|29.47| 0.00| 82| 59| 47|03| 2| 9| 814|29.65| 0.00| 88| 37| 17|24| 1| 7| 100|29.91| 0.00| 85| 47| 27|25| 4| 12| |19| 202|29.52| 0.00| 79| 59| 51|33| 4| 10| 214|29.68| 0.00| 83| 34| 17|25| 1| 4| 225|29.95| 0.00| 77| 50| 39|34| 3| 12| |22| 0|29.58| 0.00| 68| 52| 57|34| 0| 6| 0|29.78| 0.00| 70| 44| 39|25| 0| 0| 0|30.00| 0.00| 65| 52| 63|04| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 4 | MAY 5 | MAY 6 | | | | | |01| 0|30.01| 0.00| 57| 49| 75|04| 0| 0| 0|29.82| 0.00| 69| 50| 50|20| 1| 6| 0|29.84| 0.00| 72| 59| 64|22| 1| 6| |04| 0|29.99| 0.00| 52| 48| 85|04| 0| 0| 0|29.80| 0.00| 66| 50| 56|20| 0| 7| 0|29.81| 0.00| 66| 61| 85|19| 0| 1| |07| 12|30.01| 0.00| 49| 45| 85|04| 0| 0| 12|29.83| 0.00| 60| 49| 68|20| 0| 2| 14|29.83| 0.00| 64| 64|100|19| 0| 1| |10| 580|30.02| 0.00| 73| 54| 51|21| 0| 4| 575|29.85| 0.00| 79| 54| 42|21| 1| 7| 450|29.85| 0.00| 75| 63| 67|20| 0| 6| |13| 974|29.96| 0.00| 87| 49| 27|21| 1| 4| 970|29.83| 0.00| 93| 52| 25|21| 1| 7| 997|29.83| 0.00| 88| 60| 39|23| 2| 8| |16| 795|29.87| 0.00| 93| 54| 27|23| 0| 4| 800|29.79| 0.00| 97| 53| 23|23| 1| 7| 898|29.76| 0.00| 93| 60| 34|20| 2| 6| |19| 216|29.81| 0.00| 88| 50| 27|25| 0| 7| 209|29.79| 0.00| 92| 53| 27|17| 0| 5| 172|29.74| 0.00| 89| 61| 40|24| 2| 7| |22| 0|29.83| 0.00| 74| 49| 41|19| 0| 2| 0|29.83| 0.00| 79| 54| 43|21| 0| 1| 0|29.76| 0.00| 77| 64| 63|22| 2| 9| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 7 | MAY 8 | MAY 9 | | | | | |01| 0|29.76| 0.00| 71| 66| 84|22| 2| 7| 0|30.04| 0.00| 73| 59| 61|05| 1| 7| 0|30.11| 0.00| 68| 50| 53|10| 0| 4| |04| 0|29.73| 0.00| 70| 67| 90|20| 4| 11| 0|30.06| 0.00| 69| 52| 55|06| 3| 11| 0|30.09| 0.00| 67| 50| 53|10| 0| 3| |07| 18|29.75| 0.00| 71| 68| 89|22| 1| 12| 0|30.14| 0.00| 66| 47| 51|05| 3| 14| 5|30.12| 0.00| 66| 50| 56|10| 0| 1| |10| 568|29.83| 0.00| 79| 68| 69|22| 2| 10| 265|30.21| 0.00| 65| 42| 44|05| 7| 17| 104|30.08| 0.00| 69| 52| 54|09| 1| 5| |13| 942|29.84| 0.00| 91| 67| 45|09| 2| 4| 318|30.22| 0.00| 67| 45| 46|05| 2| 8| 376|30.07| 0.00| 74| 60| 61|08| 2| 7| |16| 248|29.82| 0.00| 95| 67| 40|23| 0| 1| 633|30.15| 0.00| 74| 47| 38|09| 4| 10| 46|30.01| 0.00| 73| 63| 71|09| 1| 4| |19| 156|29.87| 0.00| 85| 64| 50|05| 3| 12| 28|30.11| 0.00| 71| 49| 45|06| 0| 5| 56|29.98| 0.00| 73| 62| 69|09| 2| 7| |22| 0|29.99| 0.00| 76| 59| 56|03| 4| 12| 0|30.13| 0.00| 68| 51| 54|07| 0| 1| 0|29.98| 0.00| 72| 64| 75|07| 0| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 10 | MAY 11 | MAY 12 | | | | | |01| 0|29.95| 0.00| 73| 68| 86|25| 2| 7| 0|29.80| 0.00| 73| 68| 85|21| 2| 10| 0|29.78| 0.00| 74| 70| 87|24| 0| 4| |04| 0|29.91| 0.00| 73| 68| 85|21| 1| 6| 0|29.80| 0.00| 72| 68| 89|21| 2| 7| 0|29.74| 0.00| 74| 70| 89|19| 1| 8| |07| 12|29.90| 0.00| 73| 69| 89|20| 1| 9| 23|29.82| 0.00| 72| 71| 99|20| 0| 1| 21|29.78| 0.00| 72| 70| 92|22| 2| 6| |10| 262|29.88| 0.00| 77| 70| 79|21| 2| 10| 230|29.85| 0.00| 80| 72| 76|18| 1| 6| 538|29.80| 0.00| 80| 67| 65|21| 3| 11| |13| 290|29.85| 0.00| 82| 69| 65|23| 2| 11|1002|29.82| 0.00| 90| 67| 48|18| 1| 11| 483|29.78| 0.00| 84| 66| 55|23| 4| 13| |16| 418|29.77| 0.00| 87| 69| 56|21| 1| 6| 371|29.76| 0.00| 90| 68| 49|24| 2| 10| 401|29.71| 0.00| 90| 67| 48|22| 2| 10| |19| 130|29.74| 0.00| 83| 68| 60|23| 4| 10| 49|29.75| 0.00| 86| 67| 54|23| 2| 6| 83|29.75| 0.00| 85| 70| 62|23| 1| 12| |22| 0|29.78| 0.00| 76| 67| 74|23| 3| 11| 0|29.77| 0.00| 78| 69| 73|22| 3| 10| 0|29.78| 0.00| 78| 70| 75|06| 2| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 13 | MAY 14 | MAY 15 | | | | | |01| 0|29.80| 0.00| 76| 70| 81|28| 1| 12| 0|30.00| 0.00| 76| 71| 84|23| 0| 4| 0|30.04| 0.00| 66| 66|100|03| 4| 10| |04| 0|29.79| 0.00| 75| 69| 83|22| 1| 5| 0|29.99| 0.00| 74| 70| 87|21| 0| 4| 0|30.00| 0.13| 64| 64|100|03| 0| 0| |07| 14|29.86| 0.00| 73| 67| 81|22| 1| 6| 67|30.01| 0.00| 73| 70| 90|08| 0| 3| 5|29.86| 0.00| 65| 65|100|07| 3| 12| |10| 285|29.92| 0.00| 79| 69| 71|23| 0| 6| 118|30.02| 0.00| 74| 71| 90|26| 0| 3| 248|30.04| 0.00| 67| 67|100|32| 1| 6| |13| 860|29.90| 0.00| 88| 66| 49|23| 2| 7| 84|30.04| 0.04| 71| 67| 89|09| 1| 3| 647|29.98| 0.00| 77| 65| 67|10| 0| 3| |16| 733|29.90| 0.00| 90| 69| 51|20| 0| 1| 237|29.95| 0.00| 71| 71|100|25| 1| 5| 830|29.93| 0.00| 81| 66| 60|06| 3| 7| |19| 67|29.89| 0.00| 85| 68| 57|14| 0| 7| 42|29.96| 0.00| 67| 63| 85|06| 3| 10| 200|29.94| 0.00| 79| 64| 61|08| 1| 6| |22| 0|29.95| 0.00| 79| 71| 77|25| 1| 6| 0|29.98| 0.00| 65| 65|100|09| 0| 0| 0|29.95| 0.00| 72| 65| 79|09| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 16 | MAY 17 | MAY 18 | | | | | |01| 0|29.97| 0.00| 67| 64| 89|09| 0| 1| 0|29.94| 0.00| 72| 66| 83|06| 0| 0| 0|29.93| 0.00| 68| 64| 89|04| 1| 4| |04| 0|29.95| 0.00| 64| 63| 95|09| 0| 0| 0|29.92| 0.00| 69| 67| 92|06| 0| 1| 0|29.91| 0.00| 65| 62| 91|03| 0| 0| |07| 30|29.98| 0.00| 63| 63|100|09| 0| 0| 26|29.98| 0.00| 67| 67|100|06| 0| 0| 25|29.95| 0.00| 65| 65|100|24| 0| 0| |10| 315|30.01| 0.00| 76| 68| 76|09| 0| 1| 534|30.00| 0.00| 82| 72| 71|26| 1| 3| 527|29.95| 0.00| 73| 67| 81|09| 2| 4| |13| 800|29.94| 0.00| 83| 69| 62|25| 0| 3|1056|29.98| 0.00| 92| 73| 54|24| 0| 3| 954|29.92| 0.00| 86| 68| 56|23| 0| 5| |16| 547|29.91| 0.00| 85| 70| 61|13| 0| 2| 786|29.90| 0.00| 94| 66| 40|21| 1| 4| 830|29.85| 0.00| 90| 68| 48|11| 1| 5| |19| 195|29.87| 0.00| 84| 69| 60|08| 0| 2| 176|29.91| 0.00| 73| 63| 70|05| 7| 19| 214|29.80| 0.00| 87| 67| 53|18| 0| 5| |22| 0|29.94| 0.00| 77| 68| 75|06| 0| 2| 0|30.05| 0.00| 69| 64| 85|26| 5| 12| 0|29.81| 0.00| 78| 68| 73|18| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.08 | 0.09 | 0.10 | 0.13 | 0.17 | 0.24 | 0.29 | 0.34 | 0.39 | 0.43 | 0.48 | 0.52 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 27 | 27 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1847 | 1850 | 0441 | 0448 | 0448 | 0449 | 0453 | 0455 | 0455 | 0514 | 0535 | 0607 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 May 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 19 | MAY 20 | MAY 21 | | | | | |01| 0|29.81| 0.00| 74| 70| 88|27| 0| 4| 0|29.72| 0.00| 76| 71| 85|22| 0| 6| 0|29.84| 0.00| 76| 72| 86|22| 0| 7| |04| 0|29.78| 0.00| 70| 70|100|23| 0| 2| 0|29.70| 0.00| 74| 74|100|21| 1| 7| 0|29.82| 0.00| 74| 71| 90|22| 1| 6| |07| 16|29.78| 0.00| 68| 68|100|25| 0| 4| 5|29.74| 0.00| 74| 74|100|20| 0| 2| 12|29.89| 0.00| 74| 71| 91|23| 0| 4| |10| 244|29.79| 0.00| 76| 69| 79|23| 1| 6| 79|29.78| 0.00| 77| 72| 85|20| 1| 7| 621|29.93| 0.00| 80| 71| 75|20| 1| 9| |13|1123|29.76| 0.00| 85| 71| 63|22| 1| 16| 195|29.80| 0.00| 81| 72| 75|21| 0| 1| 330|29.90| 0.00| 89| 68| 50|22| 1| 10| |16| 457|29.68| 0.00| 90| 69| 50|25| 2| 11| 835|29.75| 0.00| 87| 73| 63|21| 1| 11| 954|29.84| 0.00| 92| 69| 47|21| 0| 6| |19| 139|29.67| 0.00| 86| 68| 56|22| 1| 9| 209|29.73| 0.00| 86| 72| 64|22| 1| 4| 69|29.82| 0.00| 89| 68| 49|23| 0| 5| |22| 0|29.69| 0.00| 79| 69| 72|22| 1| 5| 0|29.80| 0.00| 79| 71| 76|21| 0| 0| 0|29.84| 0.00| 80| 69| 68|22| 1| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 22 | MAY 23 | MAY 24 | | | | | |01| 0|29.87| 0.00| 76| 72| 87|23| 0| 7| 0|29.83| 0.00| 77| 72| 86|21| 1| 9| 0|29.85| 0.00| 75| 68| 79|23| 1| 7| |04| 0|29.85| 0.00| 75| 70| 86|19| 1| 6| 0|29.80| 0.00| 76| 73| 90|22| 1| 6| 0|29.84| 0.00| 74| 69| 86|16| 0| 3| |07| 18|29.84| 0.00| 75| 71| 90|20| 0| 5| 11|29.84| 0.00| 76| 73| 90|21| 0| 5| 37|29.85| 0.00| 73| 71| 92|15| 0| 7| |10| 394|29.87| 0.00| 80| 71| 74|22| 2| 10| 267|29.88| 0.00| 81| 73| 76|28| 1| 10| 459|29.89| 0.00| 80| 69| 71|09| 1| 6| |13| 348|29.85| 0.00| 88| 72| 59|23| 3| 9| 336|29.85| 0.00| 90| 74| 60|19| 0| 9|1111|29.88| 0.00| 87| 71| 58|12| 1| 6| |16| 318|29.77| 0.00| 92| 70| 50|23| 2| 7| 179|29.81| 0.00| 92| 70| 49|25| 3| 6| 979|29.82| 0.00| 90| 67| 47|27| 1| 8| |19| 83|29.76| 0.00| 86| 69| 58|13| 1| 6| 95|29.80| 0.00| 86| 69| 57|29| 1| 7| 74|29.80| 0.00| 85| 64| 50|09| 1| 3| |22| 0|29.80| 0.00| 79| 71| 76|22| 1| 10| 0|29.84| 0.00| 80| 71| 74|21| 0| 11| 0|29.85| 0.00| 79| 67| 67|23| 1| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 25 | MAY 26 | MAY 27 | | | | | |01| 0|29.85| 0.00| 74| 69| 82|00| 0| 4| 0|29.92| 0.00| 75| 67| 78|22| 0| 1| 0|29.95| 0.00| 73| 65| 74|00| 0| 0| |04| 0|29.81| 0.00| 73| 70| 92|18| 0| 2| 0|29.92| 0.00| 71| 66| 86|22| 0| 0| 0|29.92| 0.00| 70| 65| 84|00| 0| 0| |07| 18|29.82| 0.00| 73| 73|100|28| 0| 6| 12|29.95| 0.00| 72| 72|100|22| 0| 2| 32|29.95| 0.00| 67| 64| 89|00| 0| 0| |10| 241|29.89| 0.00| 78| 70| 76|07| 1| 4| 643|30.00| 0.00| 81| 69| 66|06| 0| 2| 555|29.98| 0.00| 86| 69| 58|27| 1| 5| |13| 482|29.90| 0.00| 84| 71| 65|24| 2| 6|1005|29.97| 0.00| 89| 67| 48|10| 0| 5| 998|29.95| 0.00| 95| 60| 31|08| 0| 3| |16| 401|29.87| 0.00| 87| 69| 54|20| 2| 7| 886|29.90| 0.00| 93| 66| 41|23| 0| 4| 823|29.90| 0.00| 94| 61| 34|10| 1| 4| |19| 62|29.88| 0.00| 85| 66| 54|23| 1| 4| 241|29.88| 0.00| 91| 64| 41|19| 0| 2| 244|29.88| 0.11| 83| 68| 60|28| 1| 7| |22| 0|29.90| 0.00| 78| 66| 65|17| 0| 3| 0|29.94| 0.00| 80| 64| 57|00| 0| 0| 0|29.91| 0.00| 79| 68| 70|20| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 28 | MAY 29 | MAY 30 | | | | | |01| 0|29.90| 0.00| 74| 66| 76|20| 0| 0| 0|29.80| 0.00| 77| 66| 70|09| 0| 0| 0|29.74| 0.00| 77| 66| 70|11| 0| 0| |04| 0|29.90| 0.00| 70| 66| 85|20| 0| 0| 0|29.77| 0.00| 72| 66| 80|09| 0| 0| 0|29.74| 0.00| 75| 67| 75|23| 0| 0| |07| 30|29.91| 0.00| 69| 65| 87|15| 0| 0| 30|29.78| 0.00| 70| 65| 85|05| 0| 0| 49|29.74| 0.00| 72| 65| 78|25| 0| 0| |10| 547|29.92| 0.00| 87| 68| 53|32| 0| 2| 543|29.80| 0.00| 88| 67| 51|03| 0| 5| 591|29.79| 0.00| 87| 67| 52|21| 0| 4| |13| 979|29.90| 0.00| 93| 66| 41|08| 0| 5|1060|29.77| 0.00| 95| 64| 36|08| 1| 5| 745|29.80| 0.00| 93| 66| 41|21| 2| 5| |16| 814|29.82| 0.00| 95| 62| 33|09| 2| 7| 135|29.73| 0.00| 93| 62| 37|24| 1| 5| 745|29.76| 0.00| 98| 63| 32|21| 1| 9| |19| 186|29.78| 0.00| 92| 61| 36|09| 0| 3| 204|29.68| 0.00| 90| 66| 45|24| 0| 1| 211|29.75| 0.00| 91| 65| 42|22| 0| 5| |22| 0|29.80| 0.00| 83| 65| 55|09| 0| 0| 0|29.72| 0.00| 82| 67| 60|11| 0| 0| 0|29.80| 0.00| 82| 68| 62|20| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 31 | | | | | | | |01| 0|29.85| 0.00| 78| 68| 71|20| 2| 6| | | |04| 0|29.83| 0.00| 74| 68| 82|23| 0| 1| | | |07| 32|29.87| 0.00| 70| 66| 87|23| 0| 0| | | |10| 555|29.93| 0.00| 84| 69| 62|21| 1| 5| | | |13| 926|29.93| 0.00| 93| 64| 38|08| 2| 6| | | |16| 773|29.88| 0.00| 98| 60| 29|13| 1| 9| | | |19| 221|29.85| 0.00| 93| 63| 38|23| 0| 6| | | |22| 0|29.88| 0.00| 82| 66| 59|22| 0| 3| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+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|29.860| 72| 64| 77| 0.7| 23 | 0.3| |04| 0|29.843| 70| 64| 83| 0.5| 20 | 0.3| |07| 20|29.866| 68| 64| 87| 0.4| 11 | 0.1| |10| 404|29.903| 78| 65| 67| 1.2| 19 | 0.2| |13| 762|29.887| 86| 64| 49| 1.4| 20 | 0.4| |16| 607|29.831| 89| 63| 44| 1.3| 21 | 0.5| |19| 155|29.820| 85| 63| 50| 1.2| 01 | 0.2| |22| 0|29.862| 77| 64| 66| 0.7| 24 | 0.3| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)May 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| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | |0.01|0.03|0.01|0.01| | | | | | | | | |14 15| | |0.04|0.12|0.28|0.10|0.03| | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | |0.03|0.02|0.03|17 18| | | | |0.01| | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | |0.10| | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.00|0.00|0.04|0.12|0.29|0.10|0.03|0.00|0.00|0.00|0.00|0.01|0.03|0.01|0.01|0.00|0.00|0.00|0.10|0.00|0.00|0.03|0.02|0.03|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.)