LOCAL CLIMATOLOGICAL DATA
Monthly Summary
April 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| 78.6 | 41.9 | 60.3 | 62.9 | 39| 45| 4| 0|.........| 0| 0.00| 0.0| 29.87| 29.54|29.717| 1.0| 1.0|244| 15|SSW| 5|224| 249 |
|02| 74.4 | 51.6 | 63.0 | 67.8 | 41| 39| 2| 0|..3.5....| 0| 0.33| 0.0| 29.84| 29.44|29.663| 5.3| 5.0|295| 31| W| 19|300| 292 |
|03| 81.8 | 40.6 | 61.2 | 60.9 | 38| 49| 3| 0|.........| 0| 0.00| 0.0| 29.91| 29.69|29.799| 0.6| 0.3|258| 10| S| 3| 92| 261 |
|04| 87.8 | 55.0 | 71.4 | 69.7 | 57| 67| 0| 7|1........| 0| 0.00| 0.0| 29.75| 29.63|29.695| 1.1| 1.0|231| 16|SSW| 8|218| 258 |
|05| 69.9 | 54.8 | 62.3 | 63.0 | 39| 46| 2| 0|.........| 0| 0.00| 0.0| 30.25| 29.67|29.976| 4.1| 3.4|353| 31| NW| 14|338| 278 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|06| 63.9 | 43.8 | 53.8*| 52.6 | 22| 31| 11| 0|.........| 0| 0.00| 0.0| 30.42| 30.24|30.336| 3.2| 2.8| 2| 22| NW| 12|316| 257 |
|07| 78.5 | 33.5*| 56.0 | 56.2 | 26| 36| 8| 0|.........| 0| 0.00| 0.0| 30.39| 30.05|30.251| 0.5| 0.4|253| 10|NNW| 6|326| 290 |
|08| 88.4 | 49.2 | 68.8 | 68.6 | 43| 42| 0| 4|.........| 0| 0.00| 0.0| 30.06| 29.72|29.890| 1.9| 1.9|230| 18| SW| 7|227| 266 |
|09| 93.8 | 62.0 | 77.9 | 74.0 | 51| 56| 0| 13|.........| 0| 0.00| 0.0| 29.76| 29.54|29.644| 2.7| 2.5|241| 20| S| 10|284| 237 |
|10| 72.1 | 52.5 | 62.3 | 64.3 | 45| 54| 2| 0|.........| 0| 0.00| 0.0| 30.08| 29.70|29.917| 1.7| 1.6| 54| 13|NNE| 7| 47| 206 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|11| 62.4 | 54.8 | 58.6 | 59.3 | 45| 60| 6| 0|.........| 0| 0.00| 0.0| 30.11| 29.81|30.003| 1.4| 1.3| 84| 10|ESE| 5| 89| 69 |
|12| 82.8 | 56.7 | 69.8 | 68.6 | 50| 59| 0| 5|1........| 0| 0.21| 0.0| 29.83| 29.70|29.750| 2.3| 1.9|278| 21| W| 11|329| 272 |
|13| 75.1 | 52.2 | 63.7 | 62.9 | 43| 50| 1| 0|.........| 0| 0.00| 0.0| 29.99| 29.75|29.882| 3.1| 3.0|326| 21| N| 12|322| 292 |
|14| 82.4 | 44.5 | 63.5 | 64.3 | 42| 50| 1| 0|.........| 0| 0.00| 0.0| 30.06| 29.92|29.986| 0.3| 0.1|126| 9| E| 3| 95| 281 |
|15| 82.4 | 53.3 | 67.8 | 68.1 | 49| 53| 0| 3|.........| 0| 0.00| 0.0| 30.02| 29.88|29.958| 0.9| 0.5| 68| 14| E| 5| 83| 248 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|16| 78.1 | 60.9 | 69.5 | 68.1 | 58| 71| 0| 5|.........| 0| 0.00| 0.0| 30.00| 29.88|29.942| 2.0| 1.8| 87| 16| E| 6| 90| 132 |
|17| 66.8 | 59.2 | 63.0 | 62.8 | 61| 94| 2| 0|..3......| 0| 1.30| 0.0| 30.00| 29.86|29.913| 1.8| 1.8| 84| 14|NNW| 6| 94| 29 |
|18| 83.0 | 62.6 | 72.8 | 69.4 | 64| 85| 0| 8|1.3......| 0| 0.08| 0.0| 29.96| 29.80|29.885| 0.4| 0.2| 63| 10| NW| 5|323| 173 |
|19| 78.5 | 56.2 | 67.3 | 67.9 | 52| 60| 0| 3|.........| 0| 0.00| 0.0| 30.14| 29.88|30.024| 2.9| 2.7|333| 21| NW| 11|321| 305 |
|20| 83.0 | 51.9 | 67.4 | 67.7 | 44| 47| 0| 3|.........| 0| 0.00| 0.0| 30.20| 30.04|30.127| 0.7| 0.6|332| 14|WNW| 8|323| 307 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|21| 94.7*| 57.0 | 75.8 | 75.6 | 44| 35| 0| 11|.........| 0| 0.00| 0.0| 30.07| 29.91|29.994| 0.9| 0.8|245| 11| W| 5|274| 307 |
|22| 94.3 | 64.5 | 79.4*| 79.9 | 46| 33| 0| 15|.........| 0| 0.00| 0.0| 29.98| 29.84|29.917| 1.9| 1.8|223| 21|ENE| 7| 74| 309 |
|23| 85.9 | 63.2 | 74.6 | 73.4 | 58| 61| 0| 10|.........| 0| 0.00| 0.0| 29.96| 29.83|29.913| 2.1| 2.0|239| 15|WSW| 7|230| 233 |
|24| 83.2 | 67.4 | 75.3 | 73.0 | 65| 78| 0| 10|.........| 0| T | 0.0| 30.02| 29.87|29.968| 1.3| 1.1|247| 14| SW| 5|246| 130 |
|25| 87.2 | 70.9 | 79.1 | 76.7 | 68| 77| 0| 14|.........| 0| 0.00| 0.0| 30.02| 29.92|29.962| 2.0| 1.8|260| 13|SSW| 5|244| 153 |
| | | | | | | | | | | | | | | | | | | | | | | | |
|26| 81.6 | 70.8 | 76.2 | 74.7 | 67| 78| 0| 12|.........| 0| T | 0.0| 29.93| 29.82|29.886| 2.3| 1.5|271| 16|WSW| 6|261| 87 |
|27| 72.7 | 61.3 | 67.0 | 66.9 | 63| 89| 0| 2|..3......| 0| 0.75| 0.0| 30.16| 29.86|29.993| 1.6| 1.1| 70| 18| E| 10| 89| 36 |
|28| 83.2 | 60.5 | 71.8 | 70.2 | 65| 86| 0| 7|.........| 0| 0.08| 0.0| 30.16| 30.04|30.088| 0.3| 0.1| 77| 6|ENE| 3| 99| 125 |
|29| 81.1 | 71.1 | 76.1 | 74.5 | 68| 82| 0| 11|.........| 0| 0.01| 0.0| 30.09| 29.90|29.988| 1.3| 0.8|255| 13| SW| 5|240| 81 |
|30| 88.0 | 69.8 | 78.9 | 77.2 | 69| 76| 0| 14|.........| 0| 0.00| 0.0| 29.99| 29.86|29.922| 1.1| 0.8|243| 12|SSW| 4|237| 166 |
+--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- |
+------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+
|2415.6|1693.7|------|------|---|----| 42| 157| Days | 2.76| 0.0| 30.42| 29.44|29.933| 1.8| 0.6|296| 31| W| 19|300| ---- |
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+
| Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg |
+------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+
| 80.5| 56.5| 68.5 | 68.0 | 51|59.6|----|----|>.01 Inch 7| 8.15| T | 6 | 2 |------|----|----|---| 2+ | 2 | 211|
+------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+
| | 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 |1356| 343|Thunder 4|Precipitation | Snow, Ice Plts | and Date |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+
| >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 1.32| 17-18| 0.0 | - | 0 | - |
+--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+
| 3 | 0 | 0 | 0 |----|----| Clear 27 Partly Cloudy 0 Cloudy 3 |
+--------+---------+--------+--------+----+----+------------------------------------------+
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 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 |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 1 | APR 2 | APR 3 |
| | | |
|01| 0|29.85| 0.00| 51| 33| 51|00| 0| 0| 0|29.52| 0.00| 65| 60| 84|24| 1| 5| 0|29.84| 0.00| 50| 38| 62|30| 0| 0|
|04| 0|29.82| 0.00| 46| 33| 59|00| 0| 0| 0|29.54| 0.00| 67| 63| 87|27| 7| 12| 0|29.82| 0.00| 46| 37| 71|32| 0| 1|
|07| 0|29.85| 0.00| 42| 35| 74|00| 0| 0| 0|29.58| 0.00| 56| 53| 87|24| 0| 2| 0|29.86| 0.00| 41| 35| 77|32| 0| 0|
|10| 70|29.80| 0.00| 59| 38| 45|22| 2| 11| 451|29.62| 0.00| 63| 32| 32|27| 12| 22| 60|29.90| 0.00| 54| 41| 60|09| 1| 4|
|13| 573|29.73| 0.00| 76| 35| 23|27| 2| 9| 904|29.69| 0.00| 69| 41| 36|28| 11| 25| 912|29.84| 0.00| 72| 40| 32|09| 1| 10|
|16| 753|29.61| 0.00| 78| 40| 25|22| 2| 7| 540|29.69| 0.00| 72| 36| 27|31| 13| 25| 768|29.74| 0.00| 81| 40| 23|25| 2| 10|
|19| 141|29.56| 0.00| 74| 49| 41|24| 3| 9| 72|29.74| 0.00| 68| 33| 27|31| 6| 17| 134|29.69| 0.00| 77| 36| 23|28| 1| 7|
|22| 0|29.57| 0.00| 66| 56| 71|24| 2| 6| 0|29.82| 0.00| 56| 36| 47|30| 0| 0| 0|29.73| 0.00| 64| 38| 38|21| 1| 5|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 4 | APR 5 | APR 6 |
| | | |
|01| 0|29.74| 0.00| 59| 46| 62|25| 0| 1| 0|29.69| 0.00| 68| 64| 87|24| 3| 7| 0|30.26| 0.00| 54| 25| 33|02| 3| 8|
|04| 0|29.69| 0.00| 55| 51| 86|20| 0| 3| 0|29.74| 0.00| 68| 64| 88|22| 2| 6| 0|30.27| 0.00| 47| 25| 41|02| 1| 6|
|07| 0|29.69| 0.00| 57| 55| 93|24| 1| 4| 0|29.86| 0.00| 60| 38| 43|03| 3| 18| 0|30.35| 0.00| 45| 23| 42|04| 5| 13|
|10| 165|29.74| 0.00| 62| 60| 96|21| 2| 13| 156|30.04| 0.00| 56| 30| 37|35| 4| 15| 559|30.42| 0.00| 47| 23| 40|03| 6| 15|
|13| 921|29.73| 0.00| 78| 61| 55|23| 3| 7| 907|30.07| 0.00| 66| 32| 28|35| 7| 17| 547|30.40| 0.00| 55| 23| 29|31| 8| 15|
|16| 745|29.66| 0.00| 86| 58| 39|27| 0| 6| 782|30.05| 0.00| 68| 28| 22|07| 4| 31| 689|30.31| 0.00| 64| 19| 18|00| 4| 15|
|19| 130|29.64| 0.00| 84| 55| 37|20| 0| 2| 167|30.10| 0.00| 63| 26| 24|03| 3| 12| 178|30.31| 0.00| 60| 15| 17|32| 6| 13|
|22| 0|29.69| 0.00| 74| 63| 69|28| 1| 4| 0|30.20| 0.00| 57| 29| 35|00| 0| 4| 0|30.36| 0.00| 49| 17| 28|34| 1| 4|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 7 | APR 8 | APR 9 |
| | | |
|01| 0|30.36| 0.00| 42| 22| 45|32| 0| 0| 0|30.06| 0.00| 56| 29| 35|21| 1| 6| 0|29.75| 0.00| 66| 59| 80|22| 2| 10|
|04| 0|30.34| 0.00| 36| 23| 60|32| 0| 0| 0|29.99| 0.00| 52| 35| 51|21| 2| 10| 0|29.68| 0.00| 62| 59| 89|22| 1| 7|
|07| 0|30.36| 0.00| 34| 25| 69|32| 0| 0| 0|29.97| 0.00| 50| 35| 57|20| 0| 3| 0|29.65| 0.00| 65| 60| 85|22| 5| 15|
|10| 512|30.38| 0.00| 55| 27| 34|29| 0| 3| 441|29.98| 0.00| 66| 46| 48|24| 4| 15| 118|29.66| 0.00| 68| 62| 80|21| 4| 11|
|13| 944|30.30| 0.00| 69| 32| 25|23| 1| 9| 831|29.90| 0.00| 78| 48| 35|21| 3| 9| 673|29.62| 0.00| 80| 62| 54|23| 4| 13|
|16| 796|30.16| 0.00| 77| 29| 17|24| 1| 6| 621|29.79| 0.00| 88| 46| 24|25| 3| 13| 758|29.55| 0.00| 90| 60| 36|21| 0| 6|
|19| 171|30.08| 0.00| 74| 27| 17|24| 1| 4| 56|29.73| 0.00| 85| 44| 24|22| 2| 7| 160|29.58| 0.00| 89| 23| 9|28| 5| 14|
|22| 0|30.07| 0.00| 61| 26| 26|21| 0| 1| 0|29.76| 0.00| 73| 57| 57|26| 1| 7| 0|29.67| 0.00| 70| 27| 20|33| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 10 | APR 11 | APR 12 |
| | | |
|01| 0|29.72| 0.00| 64| 60| 86|21| 1| 4| 0|30.08| 0.00| 60| 43| 52|01| 2| 5| 0|29.78| 0.00| 63| 53| 71|10| 1| 6|
|04| 0|29.74| 0.00| 61| 58| 89|21| 0| 0| 0|30.05| 0.00| 57| 43| 58|06| 1| 4| 0|29.74| 0.00| 63| 59| 87|21| 0| 3|
|07| 0|29.84| 0.00| 53| 46| 79|03| 1| 5| 0|30.07| 0.00| 55| 43| 63|03| 0| 2| 0|29.76| 0.06| 60| 58| 93|01| 1| 7|
|10| 482|29.97| 0.00| 63| 39| 41|04| 4| 10| 155|30.09| 0.00| 57| 43| 61|08| 3| 6| 301|29.80| 0.00| 60| 58| 95|33| 0| 6|
|13| 888|30.00| 0.00| 69| 40| 34|05| 4| 11| 290|30.05| 0.00| 62| 44| 51|09| 3| 7| 914|29.74| 0.00| 78| 56| 48|27| 4| 11|
|16| 889|29.95| 0.00| 72| 40| 32|04| 5| 11| 114|29.97| 0.00| 61| 46| 58|09| 3| 6| 788|29.71| 0.00| 82| 37| 20|25| 7| 17|
|19| 79|29.98| 0.00| 69| 41| 36|06| 1| 6| 18|29.90| 0.00| 62| 48| 62|10| 2| 6| 179|29.72| 0.00| 79| 34| 20|31| 3| 9|
|22| 0|30.06| 0.00| 64| 43| 47|05| 0| 3| 0|29.85| 0.00| 62| 51| 67|06| 1| 3| 0|29.76| 0.00| 64| 44| 47|27| 0| 0|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 13 | APR 14 | APR 15 |
| | | |
|01| 0|29.77| 0.00| 55| 44| 66|27| 0| 0| 0|29.99| 0.00| 54| 42| 63|03| 0| 0| 0|29.96| 0.00| 58| 43| 57|07| 0| 1|
|04| 0|29.76| 0.00| 57| 40| 54|32| 0| 0| 0|29.99| 0.00| 48| 39| 73|35| 0| 0| 0|29.97| 0.00| 54| 43| 67|07| 0| 0|
|07| 0|29.84| 0.00| 56| 43| 61|31| 6| 14| 0|30.01| 0.00| 45| 40| 84|35| 0| 1| 0|29.99| 0.00| 55| 50| 83|10| 0| 0|
|10| 510|29.92| 0.00| 62| 48| 60|33| 10| 16| 526|30.05| 0.00| 66| 47| 50|22| 1| 4| 519|30.01| 0.00| 69| 56| 63|21| 1| 6|
|13| 923|29.94| 0.00| 70| 46| 41|34| 5| 13| 844|30.02| 0.00| 80| 44| 28|28| 1| 4| 649|29.97| 0.00| 79| 49| 35|28| 3| 7|
|16| 772|29.90| 0.00| 75| 44| 33|35| 4| 16| 817|29.96| 0.00| 80| 40| 24|09| 2| 5| 710|29.91| 0.00| 82| 48| 30|27| 3| 11|
|19| 179|29.91| 0.00| 71| 40| 32|35| 2| 10| 193|29.93| 0.00| 78| 38| 24|08| 1| 3| 77|29.89| 0.00| 78| 50| 38|05| 1| 11|
|22| 0|29.98| 0.00| 60| 42| 52|03| 0| 0| 0|29.96| 0.00| 66| 43| 44|07| 0| 0| 0|29.97| 0.00| 69| 51| 52|08| 1| 5|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 16 | APR 17 | APR 18 |
| | | |
|01| 0|29.97| 0.00| 64| 55| 73|26| 1| 10| 0|29.92| 0.00| 66| 60| 81|09| 1| 6| 0|29.95| 0.00| 63| 62| 96|08| 0| 3|
|04| 0|29.95| 0.00| 62| 56| 82|07| 1| 4| 0|29.88| 0.00| 62| 61| 94|09| 3| 12| 0|29.90| 0.00| 63| 62| 96|02| 0| 3|
|07| 0|29.97| 0.00| 61| 58| 89|09| 2| 6| 0|29.91| 0.00| 63| 62| 96|09| 2| 4| 0|29.89| 0.00| 63| 62| 96|04| 0| 3|
|10| 287|30.00| 0.00| 65| 60| 84|08| 3| 14| 0|29.97| 0.44| 61| 60| 96|07| 3| 6| 413|29.91| 0.00| 64| 64| 98|01| 0| 2|
|13| 309|29.96| 0.00| 74| 59| 60|08| 3| 11| 276|29.90| 0.00| 61| 59| 96|09| 5| 12| 239|29.89| 0.00| 75| 66| 73|19| 0| 1|
|16| 246|29.89| 0.00| 77| 57| 51|09| 2| 11| 237|29.90| 0.00| 63| 62| 96|08| 2| 7| 844|29.81| 0.00| 81| 66| 61|27| 1| 5|
|19| 21|29.89| 0.00| 73| 57| 58|09| 2| 9| 88|29.89| 0.00| 63| 62| 95|09| 0| 4| 181|29.82| 0.00| 77| 66| 69|09| 1| 4|
|22| 0|29.91| 0.00| 69| 59| 70|08| 5| 10| 0|29.96| 0.00| 63| 62| 96|09| 0| 1| 0|29.89| 0.00| 69| 65| 86|26| 1| 3|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Precipitation | 0.25 | 0.39 | 0.46 | 0.51 | 0.67 | 0.74 | 0.96 | 1.02 | 1.07 | 1.08 | 1.08 | 1.08 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Date | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
| Ended: Time | 0942 | 0946 | 0950 | 0956 | 1005 | 1014 | 1035 | 1053 | 1101 | 1107 | 1107 | 1107 |
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
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 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 |
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 19 | APR 20 | APR 21 |
| | | |
|01| 0|29.91| 0.00| 65| 63| 93|23| 1| 4| 0|30.15| 0.00| 57| 46| 67|05| 0| 1| 0|30.05| 0.00| 62| 42| 48|21| 1| 4|
|04| 0|29.90| 0.00| 65| 63| 94|23| 1| 4| 0|30.14| 0.00| 55| 46| 73|32| 1| 5| 0|30.01| 0.00| 60| 41| 50|23| 0| 3|
|07| 5|30.01| 0.00| 57| 48| 72|32| 3| 12| 5|30.16| 0.00| 52| 45| 76|32| 0| 1| 0|30.03| 0.00| 58| 43| 56|24| 0| 2|
|10| 533|30.10| 0.00| 65| 48| 55|33| 5| 14| 538|30.19| 0.00| 71| 48| 45|32| 1| 7| 536|30.07| 0.00| 76| 44| 32|23| 2| 7|
|13| 939|30.08| 0.00| 74| 49| 42|01| 3| 12| 944|30.16| 0.00| 77| 42| 28|04| 1| 6| 942|30.02| 0.00| 89| 51| 27|23| 2| 10|
|16| 777|30.03| 0.00| 78| 45| 31|32| 8| 16| 784|30.09| 0.00| 81| 44| 27|22| 0| 3| 791|29.95| 0.00| 95| 43| 17|25| 1| 10|
|19| 183|30.03| 0.00| 75| 42| 31|35| 2| 12| 185|30.06| 0.00| 79| 38| 23|35| 0| 1| 183|29.92| 0.00| 89| 43| 20|21| 1| 6|
|22| 0|30.10| 0.00| 63| 47| 57|01| 0| 1| 0|30.08| 0.00| 66| 43| 43|35| 0| 0| 0|29.93| 0.00| 75| 44| 34|20| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 22 | APR 23 | APR 24 |
| | | |
|01| 0|29.94| 0.00| 71| 45| 39|21| 1| 6| 0|29.92| 0.00| 69| 41| 36|23| 1| 6| 0|29.96| 0.00| 68| 62| 83|27| 1| 7|
|04| 0|29.91| 0.00| 69| 50| 50|21| 1| 5| 0|29.92| 0.00| 64| 58| 81|21| 2| 6| 0|29.91| 0.00| 68| 65| 90|08| 1| 4|
|07| 7|29.93| 0.00| 65| 49| 57|21| 0| 5| 9|29.93| 0.00| 64| 61| 89|23| 2| 6| 18|29.99| 0.00| 70| 67| 90|21| 0| 3|
|10| 545|29.97| 0.00| 81| 43| 27|22| 3| 14| 527|29.95| 0.00| 73| 61| 66|23| 3| 12| 313|29.99| 0.00| 73| 68| 83|25| 1| 11|
|13| 946|29.94| 0.00| 91| 44| 20|23| 2| 11|1063|29.93| 0.00| 81| 61| 51|24| 4| 14| 410|30.00| 0.00| 80| 64| 58|21| 3| 10|
|16| 777|29.88| 0.00| 94| 47| 20|24| 4| 12| 707|29.87| 0.00| 84| 60| 44|22| 2| 11|1018|29.97| 0.00| 81| 66| 62|24| 2| 10|
|19| 190|29.85| 0.00| 91| 44| 20|23| 0| 7| 69|29.85| 0.00| 79| 56| 45|24| 2| 9| 47|29.96| 0.00| 75| 62| 64|21| 1| 6|
|22| 0|29.91| 0.00| 78| 41| 27|25| 1| 6| 0|29.93| 0.00| 72| 61| 70|20| 1| 5| 0|29.98| 0.00| 71| 65| 83|24| 1| 5|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 25 | APR 26 | APR 27 |
| | | |
|01| 0|29.97| 0.00| 71| 69| 91|22| 2| 6| 0|29.91| 0.00| 73| 70| 89|29| 2| 11| 0|29.90| 0.00| 72| 70| 91|25| 1| 5|
|04| 0|29.94| 0.00| 72| 70| 92|22| 1| 7| 0|29.89| 0.00| 72| 69| 89|17| 1| 5| 0|29.89| 0.14| 72| 70| 94|08| 0| 5|
|07| 0|29.97| 0.00| 72| 69| 89|24| 2| 5| 0|29.90| 0.00| 71| 67| 89|27| 2| 10| 5|29.86| 0.00| 69| 67| 94|35| 1| 5|
|10| 283|30.01| 0.00| 75| 69| 83|23| 2| 9| 118|29.93| 0.00| 72| 68| 86|31| 2| 6| 37|30.08| 0.00| 69| 64| 84|04| 4| 12|
|13| 464|30.00| 0.00| 83| 67| 58|23| 2| 9| 545|29.89| 0.00| 80| 66| 62|28| 4| 12| 56|30.11| 0.05| 66| 61| 85|09| 2| 7|
|16| 374|29.94| 0.00| 86| 68| 55|27| 3| 7| 260|29.85| 0.00| 80| 64| 58|26| 2| 10| 5|30.05| 0.08| 62| 60| 93|07| 2| 10|
|19| 74|29.93| 0.00| 80| 66| 63|35| 3| 9| 63|29.82| 0.00| 77| 65| 65|04| 3| 9| 125|29.94| 0.00| 65| 60| 86|26| 3| 5|
|22| 0|29.94| 0.00| 75| 69| 80|23| 1| 7| 0|29.88| 0.00| 73| 68| 83|06| 2| 6| 0|30.05| 0.00| 62| 58| 87|31| 0| 1|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| APR 28 | APR 29 | APR 30 |
| | | |
|01| 0|30.09| 0.00| 61| 58| 92|31| 0| 0| 0|30.08| 0.00| 72| 68| 89|25| 1| 6| 0|29.95| 0.00| 71| 67| 86|24| 1| 6|
|04| 0|30.07| 0.00| 63| 61| 95|31| 0| 0| 0|30.00| 0.00| 72| 69| 91|08| 1| 6| 0|29.89| 0.00| 70| 67| 90|05| 0| 3|
|07| 0|30.11| 0.00| 63| 62| 96|31| 0| 1| 0|30.02| 0.00| 71| 69| 92|05| 0| 3| 0|29.94| 0.00| 70| 68| 93|13| 0| 1|
|10| 116|30.14| 0.00| 65| 64| 97|31| 0| 2| 144|30.04| 0.00| 72| 70| 94|23| 1| 3| 171|29.99| 0.00| 75| 71| 87|03| 0| 6|
|13| 475|30.13| 0.00| 73| 72| 96|31| 0| 3| 181|29.99| 0.00| 77| 69| 78|23| 3| 9|1067|29.94| 0.00| 84| 72| 68|23| 2| 6|
|16| 381|30.06| 0.00| 81| 72| 75|06| 1| 5| 209|29.92| 0.00| 79| 69| 70|22| 0| 5| 306|29.88| 0.00| 88| 68| 52|21| 2| 6|
|19| 53|30.04| 0.00| 80| 68| 66|29| 0| 1| 25|29.92| 0.00| 77| 67| 71|24| 1| 5| 72|29.88| 0.00| 84| 68| 59|25| 1| 6|
|22| 0|30.07| 0.00| 74| 67| 78|11| 1| 3| 0|29.95| 0.00| 74| 65| 75|07| 2| 11| 0|29.92| 0.00| 77| 68| 74|21| 2| 9|
+--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
+------------------------------------------+---------------------------------------+---------------------------------------+
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|29.934| 64| 53| 70| 1.0| 24 | 0.5|
|04| 0|29.911| 62| 54| 77| 1.0| 22 | 0.4|
|07| 1|29.942| 60| 53| 78| 1.2| 30 | 0.3|
|10| 290|29.984| 66| 53| 66| 2.6| 29 | 0.8|
|13| 624|29.960| 75| 53| 51| 3.1| 28 | 1.2|
|16| 553|29.903| 79| 52| 44| 2.7| 30 | 1.0|
|19| 106|29.889| 76| 49| 45| 1.9| 31 | 0.8|
|22| 0|29.931| 68| 52| 60| 0.9| 18 | 0.2|
+--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
April 2009: Round Rock
---+-----------------------------------------------------------+-----------------------------------------------------------+---
| | |
D| A.M. Hour Ending at | P.M. Hour Ending at |D
a| | |a
t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t
e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
01| | | | | | | | | | | | | | | | | | | | | | | | |01
02| | | | |0.26|0.06| | | | |0.01| | | | | | | | | | | | | |02
03| | | | | | | | | | | | | | | | | | | | | | | | |03
04| | | | | | | | | | | | | | | | | | | | | | | | |04
05| | | | | | | | | | | | | | | | | | | | | | | | |05
| | | | | | | | | | | | | | | | | | | | | | | | |
06| | | | | | | | | | | | | | | | | | | | | | | | |06
07| | | | | | | | | | | | | | | | | | | | | | | | |07
08| | | | | | | | | | | | | | | | | | | | | | | | |08
09| | | | | | | | | | | | | | | | | | | | | | | | |09
10| | | | | | | | | | | | | | | | | | | | | | | | |10
| | | | | | | | | | | | | | | | | | | | | | | | |
11| | | | | | | | | | | | | | | | | | | | | | | | |11
12| | | |0.01|0.01| |0.18| |0.01| | | | | | | | | | | | | | | |12
13| | | | | | | | | | | | | | | | | | | | | | | | |13
14| | | | | | | | | | | | | | | | | | | | | | | | |14
15| | | | | | | | | | | | | | | | | | | | | | | | |15
| | | | | | | | | | | | | | | | | | | | | | | | |
16| | | | | | | | | | | | | | | | | | | | | | | | |16
17| | | | | |0.01| |0.02| |0.57|0.48|0.03| | |0.17| | |0.01| |0.01| | | | |17
18| | | |0.01| |0.01| | |0.03|0.03| | | | | | | | | | | | | | |18
19| | | | | | | | | | | | | | | | | | | | | | | | |19
20| | | | | | | | | | | | | | | | | | | | | | | | |20
| | | | | | | | | | | | | | | | | | | | | | | | |
21| | | | | | | | | | | | | | | | | | | | | | | | |21
22| | | | | | | | | | | | | | | | | | | | | | | | |22
23| | | | | | | | | | | | | | | | | | | | | | | | |23
24| | | | | | | | | | | | | | | | | | | | | | | | |24
25| | | | | | | | | | | | | | | | | | | | | | | | |25
| | | | | | | | | | | | | | | | | | | | | | | | |
26| | | | | | | | | | | | | | | | | | | | | | | | |26
27| | |0.07|0.26|0.01| | | | | | | |0.04|0.11|0.14|0.10|0.02| | | | | | | |27
28| | | |0.01| | |0.02|0.01| | | |0.03| | | | | |0.01| | | | | | |28
29| | | | | | | | | |0.01| | | | | | | | | | | | | | |29
30| | | | | | | | | | | | | | | | | | | | | | | | |30
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
Sum|0.00|0.00|0.07|0.29|0.28|0.08|0.20|0.03|0.04|0.61|0.49|0.06|0.04|0.11|0.31|0.10|0.02|0.02|0.00|0.01|0.00|0.00|0.00|0.00|Sum
---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+---
During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are
typically entered in the last column (hour ending at 12 A.M.)