LOCAL CLIMATOLOGICAL DATA Monthly Summary January 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| 54.2 | 32.7 | 43.5 | 42.0 | 27| 59| 21| 0|.........| 0| 0.00| 0.0| 30.51| 30.36|30.418| 1.4| 1.0|348| 17|WNW| 10|326| 158 | |02| 57.6 | 26.6 | 42.1 | 41.3 | 29| 64| 22| 0|.........| 0| 0.00| 0.0| 30.39| 30.19|30.292| 0.1| 0.1|157| 9|ESE| 2| 90| 145 | |03| 47.4 | 37.9 | 42.7 | 42.2 | 38| 85| 22| 0|.........| 0| 0.02| 0.0| 30.38| 30.16|30.247| 0.3| 0.3| 42| 10| N| 3| 55| 25 | |04| 46.2 | 28.8 | 37.5 | 37.3 | 27| 67| 27| 0|.........| 0| 0.00| 0.0| 30.54| 30.37|30.459| 1.4| 1.3| 27| 16| NW| 6| 53| 166 | |05| 49.8 | 23.8 | 36.8 | 35.7 | 26| 70| 28| 0|.........| 0| 0.00| 0.0| 30.53| 30.31|30.423| 0.1| 0.1|118| 6|SSW| 2| 78| 151 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 51.0 | 33.4 | 42.2 | 44.8 | 40| 82| 23| 0|12.......| 0| 0.00| 0.0| 30.31| 30.01|30.141| 0.5| 0.5|229| 12| SW| 4|222| 49 | |07| 50.4 | 25.8 | 38.1 | 35.3 | 22| 63| 27| 0|.2.......| 0| 0.00| 0.0| 30.55| 30.04|30.335| 3.4| 3.2| 42| 24| W| 10|342| 122 | |08| 32.7 | 16.9 | 24.8*| 25.2 | 5| 43| 40| 0|.........| 0| 0.00| 0.0| 30.67| 30.53|30.589| 1.4| 1.3| 33| 15| NW| 6| 62| 100 | |09| 42.9 | 12.1*| 27.5 | 26.1 | 9| 52| 37| 0|.........| 0| 0.00| 0.0| 30.61| 30.49|30.565| 0.1| 0.1| 94| 5| SE| 2|107| 162 | |10| 49.4 | 17.3 | 33.3 | 32.6 | 14| 50| 32| 0|.........| 0| 0.00| 0.0| 30.71| 30.53|30.601| 0.1| 0.1|173| 7| W| 3|104| 163 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 52.8 | 23.8 | 38.3 | 38.6 | 28| 67| 26| 0|.........| 0| 0.00| 0.0| 30.54| 30.39|30.466| 0.1| 0.1|223| 10|SSW| 3|217| 99 | |12| 67.4 | 32.9 | 50.2 | 47.8 | 37| 69| 15| 0|.........| 0| 0.00| 0.0| 30.51| 30.36|30.419| 0.4| 0.3|327| 11| NW| 5|338| 158 | |13| 63.4 | 38.9 | 51.2 | 49.5 | 43| 80| 14| 0|.........| 0| 0.01| 0.0| 30.37| 30.13|30.265| 0.6| 0.6|226| 14| SW| 5|215| 74 | |14| 57.2 | 49.5 | 53.3 | 53.1 | 53| 98| 11| 0|1........| 0| 0.66| 0.0| 30.13| 29.98|30.046| 0.6| 0.5|102| 9| E| 4| 93| 19 | |15| 54.5 | 44.2 | 49.3 | 49.5 | 49| 96| 15| 0|.........| 0| 1.05| 0.0| 30.12| 30.01|30.052| 2.7| 2.6| 61| 16|ESE| 8| 63| 22 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 60.5 | 43.8 | 52.2 | 49.9 | 43| 79| 12| 0|.........| 0| 0.13| 0.0| 30.07| 29.92|29.999| 2.4| 2.0| 12| 23| NW| 10|327| 129 | |17| 69.8 | 37.5 | 53.7 | 51.1 | 42| 75| 11| 0|.........| 0| 0.01| 0.0| 30.06| 29.96|29.997| 0.3| 0.3|245| 7| S| 3|255| 144 | |18| 69.6 | 45.2 | 57.4 | 56.4 | 51| 84| 7| 0|.........| 0| 0.00| 0.0| 30.05| 29.90|29.970| 1.2| 1.2|222| 14|WSW| 7|222| 106 | |19| 73.5 | 58.7 | 66.1*| 64.6 | 60| 86| 0| 2|.........| 0| 0.01| 0.0| 29.93| 29.72|29.830| 1.6| 1.6|227| 14|WSW| 5|220| 79 | |20| 72.0 | 55.6 | 63.8 | 64.4 | 61| 91| 1| 0|.........| 0| 0.02| 0.0| 29.82| 29.50|29.631| 0.9| 0.9|230| 16|SSW| 5|216| 51 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 79.0*| 43.9 | 61.5 | 59.7 | 38| 54| 3| 0|.........| 0| 0.01| 0.0| 29.80| 29.59|29.704| 0.9| 0.8|292| 14| NW| 8|319| 173 | |22| 75.6 | 43.1 | 59.3 | 59.9 | 50| 70| 5| 0|.........| 0| 0.00| 0.0| 29.80| 29.55|29.685| 1.6| 1.6|245| 17|WNW| 7|244| 169 | |23| 71.3 | 52.2 | 61.8 | 61.3 | 48| 65| 3| 0|.........| 0| 0.00| 0.0| 29.62| 29.51|29.576| 2.4| 1.5|305| 27| NW| 17|315| 93 | |24| 66.6 | 40.2 | 53.4 | 54.6 | 31| 43| 11| 0|.........| 0| 0.00| 0.0| 29.92| 29.60|29.721| 5.1| 4.8|274| 23| W| 15|320| 178 | |25| 66.6 | 34.7 | 50.7 | 48.7 | 31| 56| 14| 0|.........| 0| 0.00| 0.0| 30.11| 29.91|29.995| 0.8| 0.8|318| 15|NNW| 9|327| 175 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 69.3 | 33.5 | 51.4 | 51.6 | 32| 53| 13| 0|.........| 0| 0.00| 0.0| 30.27| 30.09|30.163| 0.5| 0.4|100| 11|ENE| 4|103| 179 | |27| 69.1 | 50.4 | 59.8 | 58.9 | 51| 75| 5| 0|.........| 0| 0.00| 0.0| 30.18| 30.06|30.109| 0.5| 0.3|232| 12|SSW| 4|246| 61 | |28| 64.7 | 56.3 | 60.5 | 61.5 | 59| 91| 4| 0|..3......| 0| 0.19| 0.0| 30.12| 29.84|29.966| 1.4| 0.5| 95| 14|SSW| 7|262| 16 | |29| 56.3 | 30.0 | 43.2 | 40.0 | 35| 83| 22| 0|..3......| 0| 0.71| 0.0| 30.15| 29.84|30.031| 6.7| 6.5|325| 25| W| 17|267| 72 | |30| 43.2 | 29.3 | 36.3 | 34.1 | 26| 73| 29| 0|.........| 0| 0.00| 0.0| 30.28| 30.13|30.208| 2.1| 1.9|349| 19|NNW| 9|317| 163 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 35.3 | 29.1 | 32.2 | 31.9 | 29| 88| 33| 0|.........| 0| 0.00| 0.0| 30.33| 30.20|30.262| 0.6| 0.5| 69| 7|ENE| 3| 73| 33 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1819.3|1128.1|------|------|---|----| 533| 2| Days | 2.82| 0.0| 30.71| 29.50|30.134| 1.4| 0.5|331| 27| NW| 17|267| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 58.7| 36.4| 47.5 | 46.8 | 37|71.3|----|----|≥.01 Inch 11| 2.82| 0.0| 10 | 20 |------|----|----|---| 23 | 29 | 111| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |1408| 2|Thunder 2|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 2| 1.37| 14-15| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 11 | 0 |----|----| Clear 20 Partly Cloudy 1 Cloudy 10 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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 January 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 1 | JAN 2 | JAN 3 | | | | | |01| 0|30.42| 0.00| 39| 32| 75|35| 4| 16| 0|30.36| 0.00| 32| 25| 76|09| 0| 0| 0|30.18| 0.00| 38| 33| 81|16| 0| 0| |04| 0|30.40| 0.00| 34| 29| 80|26| 1| 6| 0|30.34| 0.00| 29| 24| 81|09| 0| 0| 0|30.19| 0.00| 41| 37| 86|30| 0| 1| |07| 0|30.47| 0.00| 33| 29| 83|32| 2| 6| 0|30.37| 0.00| 27| 23| 85|09| 0| 0| 0|30.21| 0.00| 41| 37| 85|30| 0| 1| |10| 410|30.50| 0.00| 46| 31| 57|35| 1| 6| 323|30.39| 0.00| 42| 33| 70|09| 0| 1| 32|30.26| 0.00| 43| 38| 80|30| 0| 0| |13| 647|30.41| 0.00| 52| 26| 36|06| 2| 7| 703|30.29| 0.00| 55| 31| 40|24| 0| 6| 183|30.23| 0.00| 47| 38| 72|31| 0| 2| |16| 160|30.36| 0.00| 53| 22| 30|10| 0| 3| 181|30.20| 0.00| 55| 30| 38|24| 1| 5| 25|30.25| 0.00| 44| 41| 90|05| 1| 3| |19| 0|30.38| 0.00| 45| 24| 44|09| 0| 0| 0|30.22| 0.00| 46| 31| 56|13| 0| 1| 0|30.29| 0.00| 43| 41| 94|02| 0| 7| |22| 0|30.39| 0.00| 37| 26| 63|09| 0| 0| 0|30.20| 0.00| 42| 32| 68|09| 0| 0| 0|30.36| 0.00| 40| 38| 92|03| 2| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 4 | JAN 5 | JAN 6 | | | | | |01| 0|30.39| 0.00| 38| 32| 81|01| 1| 11| 0|30.49| 0.00| 29| 25| 83|01| 0| 2| 0|30.28| 0.00| 34| 29| 80|21| 0| 3| |04| 0|30.42| 0.00| 36| 31| 80|02| 2| 6| 0|30.49| 0.00| 26| 22| 84|01| 0| 0| 0|30.23| 0.00| 37| 31| 80|20| 0| 2| |07| 0|30.47| 0.00| 30| 24| 77|33| 0| 5| 0|30.50| 0.00| 25| 22| 87|01| 0| 0| 0|30.22| 0.00| 39| 33| 79|21| 0| 2| |10| 383|30.54| 0.00| 36| 23| 58|06| 3| 11| 387|30.52| 0.00| 35| 26| 68|10| 1| 4| 234|30.22| 0.00| 46| 38| 73|20| 1| 4| |13| 624|30.47| 0.00| 44| 25| 47|32| 2| 11| 626|30.42| 0.00| 44| 28| 52|09| 1| 5| 120|30.12| 0.00| 50| 42| 73|23| 2| 10| |16| 431|30.44| 0.00| 46| 26| 46|00| 1| 1| 146|30.33| 0.00| 48| 30| 49|10| 1| 3| 60|30.04| 0.00| 50| 46| 87|22| 1| 3| |19| 0|30.46| 0.00| 38| 27| 64|02| 0| 0| 0|30.34| 0.00| 41| 29| 62|19| 0| 0| 0|30.04| 0.00| 49| 47| 91|21| 0| 0| |22| 0|30.49| 0.00| 32| 26| 78|01| 0| 3| 0|30.33| 0.00| 35| 28| 73|19| 0| 2| 0|30.04| 0.00| 50| 48| 94|21| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 7 | JAN 8 | JAN 9 | | | | | |01| 0|30.06| 0.00| 50| 49| 96|29| 0| 3| 0|30.53| 0.00| 25| 7| 45|03| 1| 10| 0|30.58| 0.00| 16| 6| 64|00| 0| 0| |04| 0|30.11| 0.00| 46| 44| 95|32| 7| 15| 0|30.57| 0.00| 23| 7| 49|03| 1| 5| 0|30.56| 0.00| 14| 6| 70|00| 0| 0| |07| 0|30.30| 0.00| 32| 28| 82|04| 5| 15| 0|30.60| 0.00| 23| 5| 45|03| 2| 9| 0|30.55| 0.00| 14| 7| 73|00| 0| 1| |10| 135|30.42| 0.00| 29| 21| 73|05| 4| 14| 151|30.65| 0.00| 25| 5| 42|03| 3| 13| 406|30.61| 0.00| 28| 12| 50|08| 1| 3| |13| 624|30.37| 0.00| 36| 15| 41|05| 6| 14| 388|30.60| 0.00| 29| 4| 34|03| 2| 12| 656|30.54| 0.00| 37| 8| 29|11| 1| 3| |16| 183|30.36| 0.00| 36| 12| 37|06| 3| 12| 135|30.53| 0.00| 32| 3| 29|32| 3| 9| 176|30.49| 0.00| 39| 10| 29|34| 0| 3| |19| 0|30.44| 0.00| 30| 9| 42|04| 2| 9| 0|30.59| 0.00| 26| 6| 42|00| 0| 1| 0|30.56| 0.00| 32| 12| 42|08| 0| 1| |22| 0|30.52| 0.00| 27| 10| 47|06| 2| 7| 0|30.61| 0.00| 21| 6| 52|00| 0| 0| 0|30.61| 0.00| 27| 12| 52|08| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 10 | JAN 11 | JAN 12 | | | | | |01| 0|30.59| 0.00| 22| 13| 67|08| 0| 0| 0|30.53| 0.00| 28| 17| 63|18| 0| 1| 0|30.43| 0.00| 34| 29| 83|16| 0| 0| |04| 0|30.62| 0.00| 20| 11| 68|08| 0| 0| 0|30.51| 0.00| 26| 19| 72|19| 0| 0| 0|30.43| 0.00| 34| 31| 89|16| 0| 1| |07| 0|30.66| 0.00| 18| 10| 72|08| 0| 0| 0|30.52| 0.00| 25| 20| 81|19| 0| 0| 0|30.46| 0.00| 36| 34| 91|16| 0| 0| |10| 408|30.70| 0.00| 34| 18| 50|08| 0| 2| 366|30.52| 0.00| 42| 31| 64|25| 0| 1| 394|30.49| 0.00| 54| 42| 63|05| 0| 4| |13| 657|30.61| 0.00| 48| 16| 28|26| 0| 5| 323|30.45| 0.00| 51| 37| 57|24| 0| 3| 715|30.41| 0.00| 66| 42| 43|26| 1| 5| |16| 192|30.55| 0.00| 49| 15| 26|22| 0| 3| 204|30.39| 0.00| 52| 37| 56|24| 0| 1| 229|30.37| 0.00| 63| 40| 44|02| 1| 3| |19| 0|30.55| 0.00| 38| 15| 38|21| 0| 0| 0|30.41| 0.00| 47| 35| 64|09| 0| 0| 0|30.38| 0.00| 53| 38| 57|05| 0| 0| |22| 0|30.54| 0.00| 33| 18| 53|19| 0| 1| 0|30.43| 0.00| 38| 31| 76|16| 0| 0| 0|30.39| 0.00| 44| 36| 75|05| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 13 | JAN 14 | JAN 15 | | | | | |01| 0|30.35| 0.00| 43| 38| 84|05| 0| 0| 0|30.10| 0.00| 50| 47| 90|24| 1| 4| 0|30.06| 0.00| 54| 54|100|10| 0| 3| |04| 0|30.34| 0.00| 39| 35| 87|05| 0| 0| | | | | | | | | | 0|30.04| 0.00| 52| 52|100|08| 2| 5| |07| 0|30.33| 0.00| 43| 40| 90|05| 0| 0| 0|30.05| 0.00| 50| 49| 95|21| 0| 1| 0|30.06| 0.00| 50| 50|100|06| 1| 6| |10| 121|30.34| 0.00| 54| 48| 79|21| 1| 7| 47|30.09| 0.00| 51| 51|100|20| 0| 2| 60|30.09| 0.00| 50| 50|100|06| 3| 9| |13| 404|30.24| 0.00| 61| 46| 57|24| 1| 11| 114|30.02| 0.00| 54| 54|100|06| 0| 1| 81|30.05| 0.00| 51| 51|100|05| 2| 10| |16| 134|30.19| 0.00| 56| 49| 76|23| 1| 12| 30|29.99| 0.00| 57| 57|100|10| 1| 4| 42|30.02| 0.00| 49| 45| 86|05| 7| 15| |19| 0|30.18| 0.00| 52| 46| 79|14| 0| 2| 0|30.04| 0.00| 56| 56|100|09| 2| 7| 0|30.04| 0.07| 46| 44| 93|03| 3| 12| |22| 0|30.18| 0.00| 50| 46| 86|22| 0| 3| 0|30.05| 0.06| 55| 55|100|10| 2| 6| 0|30.07| 0.00| 45| 43| 93|03| 2| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 16 | JAN 17 | JAN 18 | | | | | |01| 0|30.02| 0.08| 44| 42| 92|03| 3| 7| 0|30.00| 0.00| 42| 38| 87|26| 0| 0| 0|30.00| 0.00| 47| 44| 89|21| 1| 6| |04| 0|30.00| 0.00| 44| 43| 95|02| 2| 8| 0|29.97| 0.00| 42| 39| 92|26| 0| 2| 0|29.99| 0.00| 45| 42| 89|21| 0| 2| |07| 0|30.02| 0.00| 45| 44| 94|33| 1| 6| 0|30.00| 0.00| 38| 36| 92|26| 0| 0| 0|30.00| 0.00| 47| 45| 93|23| 0| 2| |10| 167|30.06| 0.00| 50| 44| 81|05| 2| 11| 341|30.06| 0.00| 52| 48| 86|22| 0| 4| 160|30.05| 0.00| 56| 55| 95|22| 1| 7| |13| 645|29.98| 0.00| 57| 42| 58|35| 4| 16| 642|29.99| 0.00| 69| 44| 41|22| 0| 4| 301|29.96| 0.00| 64| 57| 79|22| 6| 12| |16| 251|29.92| 0.00| 60| 43| 55|34| 1| 13| 181|29.97| 0.00| 64| 44| 47|24| 1| 5| 227|29.91| 0.00| 69| 57| 64|22| 4| 10| |19| 0|29.98| 0.00| 53| 45| 74|32| 3| 11| 0|30.00| 0.00| 55| 45| 69|22| 0| 2| 0|29.92| 0.00| 62| 54| 75|22| 0| 2| |22| 0|30.00| 0.00| 47| 42| 83|33| 1| 3| 0|30.00| 0.00| 49| 43| 80|22| 0| 0| 0|29.94| 0.00| 59| 55| 89|24| 1| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.07 | 0.11 | 0.13 | 0.14 | 0.16 | 0.21 | 0.24 | 0.29 | 0.34 | 0.39 | 0.46 | 0.50 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 2256 | 2301 | 2305 | 2305 | 2010 | 1943 | 1945 | 1943 | 2118 | 1943 | 1943 | 1952 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 January 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 19 | JAN 20 | JAN 21 | | | | | |01| 0|29.93| 0.00| 60| 58| 94|22| 2| 9| 0|29.80| 0.00| 64| 62| 94|21| 0| 1| 0|29.59| 0.00| 53| 51| 93|21| 0| 2| |04| 0|29.88| 0.00| 62| 60| 94|22| 1| 9| 0|29.69| 0.00| 63| 62| 97|22| 0| 5| 0|29.63| 0.00| 48| 45| 90|24| 0| 3| |07| 0|29.88| 0.00| 62| 59| 92|21| 1| 5| 0|29.68| 0.00| 63| 63|100|22| 1| 7| 0|29.71| 0.00| 45| 39| 78|25| 0| 0| |10| 114|29.90| 0.00| 62| 60| 93|23| 1| 6| 81|29.68| 0.00| 64| 64|100|22| 0| 4| 413|29.75| 0.00| 62| 41| 46|26| 3| 7| |13| 241|29.83| 0.00| 67| 61| 80|23| 3| 9| 213|29.56| 0.00| 68| 66| 92|22| 3| 9| 679|29.71| 0.00| 77| 32| 19|28| 3| 10| |16| 269|29.75| 0.00| 73| 61| 65|24| 2| 8| 165|29.51| 0.00| 72| 62| 73|23| 3| 11| 258|29.69| 0.00| 76| 29| 18|27| 0| 2| |19| 0|29.73| 0.00| 65| 59| 79|25| 0| 1| 0|29.55| 0.00| 64| 58| 79|21| 0| 0| 0|29.75| 0.00| 64| 35| 33|00| 0| 0| |22| 0|29.79| 0.00| 65| 61| 88|22| 1| 6| 0|29.61| 0.00| 60| 57| 92|22| 1| 6| 0|29.80| 0.00| 53| 39| 58|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 22 | JAN 23 | JAN 24 | | | | | |01| 0|29.77| 0.00| 49| 38| 65|00| 0| 0| 0|29.51| 0.00| 64| 61| 89|20| 1| 7| 0|29.62| 0.00| 52| 32| 46|23| 1| 7| |04| 0|29.75| 0.00| 47| 38| 69|00| 0| 0| 0|29.56| 0.00| 63| 58| 85|27| 0| 0| 0|29.60| 0.00| 52| 29| 41|25| 6| 14| |07| 0|29.78| 0.00| 43| 36| 77|00| 0| 1| 0|29.58| 0.00| 61| 57| 89|05| 0| 1| 0|29.65| 0.00| 51| 28| 41|24| 5| 15| |10| 418|29.80| 0.00| 62| 50| 64|27| 1| 5| 202|29.60| 0.00| 63| 46| 54|06| 3| 11| | | | | | | | | | |13| 663|29.68| 0.00| 71| 56| 59|23| 5| 14| 339|29.53| 0.00| 68| 46| 45|02| 2| 10| 691|29.67| 0.00| 66| 31| 27|26| 8| 19| |16| 237|29.58| 0.00| 75| 57| 55|23| 4| 14| 123|29.58| 0.00| 61| 43| 51|30| 13| 25| 269|29.71| 0.00| 64| 29| 27|31| 10| 19| |19| 0|29.59| 0.00| 66| 59| 76|23| 2| 10| 0|29.59| 0.00| 58| 40| 51|23| 0| 4| 0|29.84| 0.00| 52| 36| 55|02| 0| 2| |22| 0|29.59| 0.00| 64| 60| 86|27| 1| 7| 0|29.61| 0.00| 53| 39| 59|23| 1| 5| 0|29.90| 0.00| 43| 34| 69|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 25 | JAN 26 | JAN 27 | | | | | |01| 0|29.92| 0.00| 39| 33| 80|00| 0| 0| 0|30.11| 0.00| 40| 32| 72|06| 0| 0| 0|30.11| 0.00| 51| 40| 67|21| 0| 5| |04| 0|29.92| 0.00| 37| 32| 83|00| 0| 0| 0|30.14| 0.00| 38| 30| 73|02| 0| 0| 0|30.08| 0.00| 51| 43| 76|22| 0| 0| |07| 0|29.97| 0.00| 36| 33| 87|23| 1| 4| 0|30.19| 0.00| 34| 29| 81|21| 0| 0| 0|30.11| 0.00| 53| 48| 83|05| 0| 0| |10| 427|30.04| 0.00| 53| 30| 41|33| 2| 10| 427|30.26| 0.00| 54| 31| 41|07| 1| 4| 97|30.18| 0.00| 57| 51| 83|11| 0| 2| |13| 759|29.99| 0.00| 63| 29| 27|32| 2| 8| 694|30.19| 0.00| 66| 31| 27|09| 2| 9| 297|30.13| 0.00| 65| 55| 70|23| 1| 5| |16| 285|29.96| 0.00| 65| 25| 22|32| 5| 11| 332|30.13| 0.00| 67| 32| 27|10| 3| 5| 264|30.06| 0.00| 68| 56| 65|30| 1| 9| |19| 0|30.02| 0.00| 54| 29| 39|06| 0| 2| 0|30.15| 0.00| 59| 35| 40|15| 0| 1| 0|30.09| 0.00| 63| 55| 74|23| 0| 3| |22| 0|30.09| 0.00| 45| 33| 61|06| 0| 0| 0|30.13| 0.00| 53| 38| 56|26| 0| 3| 0|30.11| 0.00| 62| 56| 79|22| 0| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 28 | JAN 29 | JAN 30 | | | | | |01| 0|30.10| 0.00| 61| 55| 82|07| 1| 5| 0|29.87| 0.14| 55| 54| 95|06| 3| 13| 0|30.13| 0.00| 30| 24| 77|34| 3| 17| |04| 0|30.08| 0.00| 58| 55| 90|10| 2| 5| 0|29.96| 0.23| 45| 43| 93|33| 8| 24| 0|30.14| 0.00| 30| 23| 76|34| 2| 9| |07| 0|30.05| 0.00| 59| 57| 93|11| 1| 6| 0|30.03| 0.18| 40| 38| 93|30| 11| 21| 0|30.20| 0.00| 30| 23| 75|33| 3| 12| |10| 16|30.03| 0.00| 60| 58| 93|09| 4| 9| 21|30.07| 0.00| 39| 36| 92|32| 9| 21| 220|30.26| 0.00| 33| 25| 72|34| 2| 10| |13| 39|29.93| 0.00| 63| 61| 93|05| 1| 4| 265|30.04| 0.00| 40| 34| 79|29| 8| 21| 756|30.22| 0.00| 41| 28| 60|31| 3| 10| |16| 63|29.86| 0.00| 65| 62| 92|23| 2| 10| 142|30.04| 0.00| 38| 29| 70|31| 12| 20| 397|30.18| 0.00| 42| 30| 61|05| 1| 7| |19| 0|29.87| 0.00| 64| 62| 92|04| 0| 3| 0|30.11| 0.00| 35| 26| 69|30| 7| 17| 0|30.22| 0.00| 36| 29| 75|03| 0| 3| |22| 0|29.86| 0.19| 64| 61| 93|08| 0| 4| 0|30.13| 0.00| 32| 24| 74|32| 5| 15| 0|30.28| 0.00| 31| 27| 85|07| 0| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JAN 31 | | | | | | | |01| 0|30.26| 0.00| 31| 28| 89|06| 2| 5| | | |04| 0|30.27| 0.00| 30| 27| 90|06| 2| 6| | | |07| 0|30.31| 0.00| 30| 27| 91|03| 0| 3| | | |10| 65|30.32| 0.00| 31| 29| 91|07| 1| 5| | | |13| 105|30.28| 0.00| 33| 30| 88|11| 0| 2| | | |16| 51|30.22| 0.00| 34| 30| 84|06| 0| 2| | | |19| 0|30.22| 0.00| 33| 30| 87|12| 0| 2| | | |22| 0|30.22| 0.00| 33| 30| 88|07| 0| 0| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+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|30.139| 42| 36| 81| 0.8| 03 | 0.4| |04| 0|30.139| 40| 34| 82| 1.2| 34 | 0.6| |07| 0|30.168| 39| 34| 84| 1.1| 33 | 0.5| |10| 224|30.219| 46| 37| 73| 1.6| 03 | 0.7| |13| 436|30.136| 54| 37| 58| 2.3| 29 | 0.8| |16| 180|30.092| 54| 37| 57| 2.5| 31 | 1.3| |19| 0|30.120| 48| 37| 67| 0.6| 35 | 0.3| |22| 0|30.143| 44| 37| 76| 0.6| 35 | 0.2| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)January 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| | | | | | | | | | | | | | |0.01|0.01| | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | |0.01| | | | | |13 14| | | | | |0.02|0.01| | |0.02|0.01| | |0.01| | | | | |0.13|0.16|0.11|0.12|0.07|14 15|0.04|0.06|0.02| | |0.02|0.02|0.03|0.01|0.01|0.03|0.01| |0.04|0.07|0.04|0.02|0.13|0.14|0.22|0.02|0.04|0.01|0.07|15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.05|0.05|0.02|0.01| | | | | | | | | | | | | | | | | | | | |16 17| | | | | |0.01| | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | |0.01|19 20|0.02| | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21|0.01| | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | |0.02| | |0.01| | | | | |0.11|0.03|0.02| |28 29|0.13|0.21|0.01|0.03|0.04|0.02|0.13|0.07|0.05|0.02| | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.25|0.32|0.05|0.04|0.04|0.07|0.16|0.10|0.06|0.05|0.04|0.03|0.00|0.05|0.09|0.05|0.02|0.13|0.15|0.35|0.29|0.18|0.15|0.15|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.)