METEOROLOGICAL DATA FOR 2008 Round Rock Latitude: 30° 32' 55" N Longitude: 97° 37' 34" W Elevation: 709 ft Time Zone: Central +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Year| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |TEMPERATURE | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Daily Maximum | 60.2| 72.9| 74.6| 80.7| 88.4| 98.6| 99.3| 97.3| 94.5| | | | 85.2| | -Daily Minimum | 37.0| 42.8| 49.7| 56.6| 66.9| 74.3| 73.4| 74.2| 72.0| | | | 60.8| | -Monthly | 48.6| 57.9| 62.1| 68.6| 77.7| 86.4| 86.4| 85.8| 83.3| | | | 73.0| | -Monthly Dewpt. | 36.0| 42.4| 48.0| 54.4| 63.5| 67.7| 67.6| 68.7| 64.9| | | | 57.0| | Extremes | | | | | | | | | | | | | | | -Highest | 77.9| 91.4| 95.4| 91.0| 98.5| 102.5| 103.8| 105.4| 99.0| | | | 105.4| | -Date | 5| 25| 14| 22| 20| 18| 28| 3| 2| | | | AUG 3| | -Lowest | 20.3| 24.4| 28.4| 38.5| 52.3| 67.6| 68.6| 70.8| 66.3| | | | 20.3| | -Date | 20| 1| 8| 14| 4| 22| 2| 19| 4| | | | JAN 20| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |DEGREE DAYS | | | | | | | | | | | | | | | Heating Base 65°F | 507| 226| 156| 45| 0| 0| 0| 0| 0| | | | 934| | | | | | | | | | | | | | | | | Cooling Base 65°F | 9| 27| 73| 163| 403| 650| 671| 654| 74| | | | 2724| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |SOLAR RADIATION (W/m2) | 107.6| 164.1| 170.4| 226.2| 246.0| 280.3| 276.3| 228.4| 255.6| | | | 217.2| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |NUMBER OF DAYS | | | | | | | | | | | | | | | Sunrise to Sunset | | | | | | | | | | | | | | | -Clear | 26| 25| 25| 24| 24| 2| 28| 19| 2| | | | 175| | -Partly Cloudy | 1| 1| 1| 3| 1| 1| 1| 7| 2| | | | 18| | -Cloudy | 4| 3| 5| 3| 6| 0| 2| 5| 0| | | | 28| | | | | | | | | | | | | | | | | Precipitation | | | | | | | | | | | | | | | .01 inches or more | 9| 4| 12| 7| 6| 4| 4| 4| 0| | | | 50| | | | | | | | | | | | | | | | | Snow, Ice pellets | | | | | | | | | | | | | | | 1.0 inches or more | 0| 0| 0| 0| 0| 0| 0| 0| 0| | | | 0| | | | | | | | | | | | | | | | | Thunderstorms | 0| 2| 4| 4| 6| 2| 2| 7| 0| | | | 27| | | | | | | | | | | | | | | | | Heavy Fog, visibility| | | | | | | | | | | | | | | 1/4 mile or less | 5| 1| 1| 0| 1| 0| 0| 0| 0| | | | 8| | | | | | | | | | | | | | | | | Temperature | | | | | | | | | | | | | | | -Maximum | | | | | | | | | | | | | | | 90°F and above | 0| 1| 1| 2| 16| 30| 30| 29| 4| | | | 113| | 32°F and below | 0| 0| 0| 0| 0| 0| 0| 0| 0| | | | 0| | -Minimum | | | | | | | | | | | | | | | 32°F and below | 11| 2| 1| 0| 0| 0| 0| 0| 0| | | | 14| | 0°F and below | 0| 0| 0| 0| 0| 0| 0| 0| 0| | | | 0| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |PRESSURE | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Monthly |30.186|30.011|29.978|29.934|29.820|29.901|29.944|29.865|29.752| | | | 29.932| | Extremes | | | | | | | | | | | | | | | -Highest | 30.97| 30.42| 30.46| 30.37| 30.12| 30.16| 30.12| 30.03| 29.87| | | | 30.97| | -Date | 2| 27| 24| 14| 4| 30| 26| 23| 4| | | | JAN 2| | -Lowest | 29.70| 29.61| 29.43| 29.43| 29.39| 29.57| 29.69| 29.68| 29.64| | | | 29.39| | -Date | 29| 25| 18| 10| 22| 4| 31| 10| 2| | | | MAY 22| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |RELATIVE HUMIDITY (%) | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Monthly | 66.7| 62.0| 66.8| 65.6| 66.8| 59.7| 60.3| 62.9| 57.3| | | | 63.1| | -Local Time | | | | | | | | | | | | | | | Hour 01 | 75| 74| 77| 78| 79| 74| 74| 75| 67| | | | 75| | Hour 07 | 83| 81| 83| 85| 85| 87| 89| 88| 79| | | | 84| | Hour 13 | 49| 44| 53| 51| 53| 43| 41| 46| 42| | | | 47| | Hour 19 | 61| 54| 56| 51| 53| 40| 42| 47| 41| | | | 50| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |PRECIPITATION | | | | | | | | | | | | | | | Water Equivalent | | | | | | | | | | | | | | | -Total | 1.58| 0.49| 3.66| 4.11| 3.65| 0.28| 0.40| 2.04| 0.00| | | | 16.21| | -Greatest (24 hrs) | 0.54| 0.43| 1.42| 2.20| 3.08| 0.22| 0.32| 1.97| 0.00| | | | 3.08| | -Date | 8| 15-16| 18-19| 25| 14-15| 29-30| 7| 19| 1| | | |MAY 14-15| | | | | | | | | | | | | | | | | Snow, Ice pellets | | | | | | | | | | | | | | | -Total | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| | | | 0.0| | -Greatest (24 hrs) | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| | | | 0.0| | -Date | | | | | | | | | | | | | | +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |WIND | | | | | | | | | | | | | | | Resultant | | | | | | | | | | | | | | | -Direction | 298| 269| 287| 276| 241| 234| 210| 169| 343| | | | 284| | -Speed | 0.5| 0.6| 0.9| 0.4| 0.1| 1.2| 0.5| 0.2| 2.0| | | | 0.5| | Average Speed | 1.7| 1.8| 2.4| 1.4| 1.3| 1.6| 1.1| 0.9| 2.4| | | | 1.6| | Maximum One-minute | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Direction | NW| NW| NNW| W| NW| SW| SSW| SW| NW| | | | NW| | -Speed | 19| 16| 19| 14| 14| 10| 10| 11| 12| | | | 19| | -Date | 29| 5| 18| 4| 14| 4| 8| 22| 3| | | | JAN 29| | Peak Gust | | | | | | | | | | | | | | | -Direction | NW| NW| N| NW| E| WSW| S| S| NW| | | | NW| | -Speed | 35| 26| 30| 26| 30| 24| 20| 21| 25| | | | 35| | -Date | 31| 5| 18| 17| 14| 5| 8| 22| 3| | | | JAN 31| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+MEANS AND EXTREMES* Round Rock Latitude: 30° 32' 55" N Longitude: 97° 37' 34" W Elevation: 709 ft Time Zone: Central +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Year| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |TEMPERATURE | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Daily Maximum | 57.4| 69.3| 74.9| 78.0| 86.4| 94.3| 94.7| 96.3| 90.7| 83.6| 73.5| 65.7| 80.4| | -Daily Minimum | 36.9| 41.8| 52.1| 55.4| 66.1| 72.8| 73.1| 74.4| 67.7| 59.0| 50.0| 40.5| 57.5| | -Monthly | 47.2| 55.6| 63.5| 66.7| 76.2| 83.5| 83.9| 85.4| 79.2| 71.3| 61.8| 53.1| 68.9| | -Monthly Dewpt. | 36.5| 40.7| 50.1| 54.2| 64.2| 69.2| 70.0| 70.5| 62.8| 57.0| 48.1| 40.4| 55.3| | Extremes | | | | | | | | | | | | | | | -Record Highest | 78.6| 91.4| 95.4| 91.0| 98.5| 102.5| 103.8| 105.4| 99.0| 92.9| 89.7| 82.8| 105.4| | -Year | 2007| 2008| 2008| 2008| 2008| 2008| 2008| 2008| 2008| 2006| 2006| 2007| AUG 2008| | -Record Lowest | 20.3| 19.7| 28.4| 32.9| 52.3| 64.2| 68.6| 69.9| 55.4| 37.6| 31.6| 24.1| 19.7| | -Year | 2008| 2007| 2008| 2007| 2008| 2007| 2008| 2007| 2006| 2007| 2006| 2007| FEB 2007| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |MEAN DEGREE DAYS | | | | | | | | | | | | | | | Heating Base 65°F | 548| 279| 125| 74| 0| 0| 0| 0| 0| 39| 165| 378| 1608| | | | | | | | | | | | | | | | | Cooling Base 65°F | 6| 21| 86| 134| 359| 561| 596| 642| 202| 243| 81| 21| 2949| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |SOLAR RADIATION (W/m2) | 101.0| 158.9| 165.0| 214.3| 225.6| 258.5| 243.2| 237.2| 233.1| 176.9| 129.7| 112.2| 188.0| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |MEAN NUMBER OF DAYS | | | | | | | | | | | | | | | Sunrise to Sunset | | | | | | | | | | | | | | | -Clear | 21.0| 22.0| 22.0| 22.0| 22.5| 12.0| 25.5| 22.0| 9.7| 23.5| 24.5| 24.5| 251.2| | -Partly Cloudy | 1.0| 2.0| 2.5| 3.5| 3.0| 2.0| 1.5| 6.0| 2.7| 4.5| 0.5| 2.0| 31.2| | -Cloudy | 9.0| 4.5| 6.5| 4.5| 5.5| 2.5| 4.0| 3.0| 1.3| 3.0| 5.0| 4.5| 53.3| | | | | | | | | | | | | | | | | Precipitation | | | | | | | | | | | | | | | .01 inches or more | 12.0| 5.5| 12.0| 9.5| 10.5| 9.5| 11.5| 5.5| 2.7| 6.5| 4.0| 10.0| 99.2| | | | | | | | | | | | | | | | | Snow, Ice pellets | | | | | | | | | | | | | | | 1.0 inches or more | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| | | | | | | | | | | | | | | | | Thunderstorms | 1.0| 1.0| 5.0| 5.0| 7.0| 6.5| 5.5| 7.0| 2.0| 2.5| 1.5| 1.0| 45.0| | | | | | | | | | | | | | | | | Heavy Fog, visibility| | | | | | | | | | | | | | | 1/4 mile or less | 3.0| 1.0| 1.5| 0.0| 1.0| 0.0| 0.0| 0.0| 0.3| 1.0| 0.5| 2.0| 10.3| | | | | | | | | | | | | | | | | Temperature | | | | | | | | | | | | | | | -Maximum | | | | | | | | | | | | | | | 90°F and above | 0.0| 0.5| 0.5| 1.0| 10.0| 24.0| 24.0| 29.5| 10.0| 10.5| 0.5| 0.0| 110.5| | 32°F and below | 1.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 1.0| | -Minimum | | | | | | | | | | | | | | | 32°F and below | 11.0| 4.5| 1.5| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.5| 7.5| 25.0| | 0°F and below | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |MEAN PRESSURE | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Monthly |30.202|30.048|30.016|29.958|29.883|29.897|29.946|29.902|29.920|29.970|30.093|30.125| 29.997| | Extremes | | | | | | | | | | | | | | | -Record Highest | 30.97| 30.52| 30.60| 30.40| 30.20| 30.16| 30.12| 30.08| 30.22| 30.50| 30.53| 30.76| 30.97| | -Year | 2008| 2007| 2007| 2007| 2007| 2008| 2008| 2007| 2006| 2007| 2006| 2006| JAN 2008| | -Record Lowest | 29.68| 29.52| 29.43| 29.43| 29.39| 29.57| 29.69| 29.68| 29.64| 29.43| 29.45| 29.67| 29.39| | -Year | 2007| 2007| 2008| 2008| 2008| 2008| 2008| 2008| 2008| 2006| 2006| 2007| MAY 2008| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |RELATIVE HUMIDITY (%) | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Monthly | 71.7| 63.4| 68.5| 68.8| 71.0| 68.2| 70.3| 67.4| 61.4| 66.7| 67.0| 67.7| 67.7| | -Local Time | | | | | | | | | | | | | | | Hour 01 | 80| 75| 79| 80| 83| 81| 82| 80| 74| 79| 78| 79| 79| | Hour 07 | 85| 82| 83| 86| 88| 90| 92| 90| 84| 87| 83| 84| 86| | Hour 13 | 56| 46| 55| 54| 57| 53| 54| 49| 45| 49| 49| 48| 51| | Hour 19 | 68| 56| 59| 56| 58| 53| 57| 53| 48| 55| 62| 63| 57| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |PRECIPITATION | | | | | | | | | | | | | | | Water Equivalent | | | | | | | | | | | | | | | -Mean | 3.47| 0.31| 4.39| 3.22| 5.07| 5.50| 3.29| 2.24| 0.93| 4.15| 0.95| 2.84| 36.36| | -Maximum Monthly | 5.35| 0.49| 5.11| 4.11| 6.49| 10.72| 6.19| 2.43| 2.78| 7.67| 1.37| 4.53| 10.72| | -Year | 2007| 2008| 2007| 2008| 2007| 2007| 2007| 2007| 2007| 2006| 2007| 2006| JUN 2007| | -Minimum Monthly | 1.58| 0.12| 3.66| 2.34| 3.65| 0.28| 0.40| 2.04| 0.00| 0.63| 0.54| 1.16| 0.00| | -Year | 2008| 2007| 2008| 2007| 2008| 2008| 2008| 2008| 2006| 2007| 2006| 2007| SEP 2006| | -Greatest (24 hrs) | 2.95| 0.43| 2.27| 2.20| 3.08| 4.02| 1.16| 1.97| 1.21| 3.53| 1.12| 2.26| 4.02| | -Year | 2007| 2008| 2007| 2008| 2008| 2007| 2007| 2008| 2007| 2006| 2007| 2006| JUN 2007| | | | | | | | | | | | | | | | | Snow,Ice pellets,Hail| | | | | | | | | | | | | | | -Mean | 0.*| 0.0| 0.0| T| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.*| | -Maximum Monthly | 0.1| 0.0| 0.0| T| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.1| | -Year | 2007| 2007| 2007| 2007| 2007| 2007| 2007| 2007| 2006| 2006| 2006| 2006| JAN 2007| | -Minimum Monthly | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| | -Year | 2008| 2007| 2007| 2008| 2007| 2007| 2007| 2007| 2006| 2006| 2006| 2006| SEP 2006| | -Greatest (day) | 0.1| 0.0| 0.0| T| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.1| | -Year | 2007| 2007| 2007| 2007| 2007| 2007| 2007| 2007| 2006| 2006| 2006| 2006| JAN 2007| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ |WIND | | | | | | | | | | | | | | | Resultant | | | | | | | | | | | | | | | -Direction | 351| 268| 286| 314| 245| 235| 216| 193| 338| 320| 295| 303| 289| | -Speed | 0.4| 0.6| 0.8| 0.3| 0.1| 0.9| 0.4| 0.2| 1.0| 0.3| 0.4| 0.7| 0.4| | Average Speed | 1.7| 1.9| 2.0| 1.5| 1.1| 1.3| 0.9| 0.9| 1.4| 1.3| 1.6| 1.6| 1.4| | Maximum One-minute | | | | | | | | | | | | | | | Average | | | | | | | | | | | | | | | -Direction | NW| W| NNW| NW| NW| NW| SSW| E| NW| NW| NW| WNW| NW| | -Speed | 19| 18| 19| 15| 14| 19| 10| 12| 12| 20| 22| 19| 22| | -Year | 2008| 2007| 2008| 2007| 2008| 2007| 2008| 2007| 2008| 2006| 2006| 2007| NOV 2006| | Peak Gust | | | | | | | | | | | | | | | -Direction | NW| W| NW| NW| WNW| WNW| WNW| S| NW| NNW| NNW| WNW| NNW| | -Speed | 35| 30| 30| 30| 31| 33| 25| 21| 25| 30| 36| 33| 36| | -Year | 2008| 2007| 2007| 2007| 2007| 2007| 2007| 2008| 2008| 2006| 2006| 2007| NOV 2006| +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ *NOTE: Length of record: September 2006 to September 2008. PRECIPITATION +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | Year | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Annual | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | 2006 | | | | | | | | | 0.00| 7.67| 0.54| 4.53| 12.74 | | 2007 | 5.35| 0.12| 5.11| 2.34| 6.49| 10.72| 6.19| 2.43| 2.78| 0.63| 1.37| 1.16| 44.69 | | 2008 | 1.58| 0.49| 3.66| 4.11| 3.65| 0.28| 0.40| 2.04| 0.00| | | | 16.21 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ SNOWFALL +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | Year | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | Total | +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | 2005-06 | | | | | | | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0 | | 2006-07 | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.1| 0.0| 0.0| T| 0.0| 0.0| 0.1 | | 2007-08 | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0 | | 2008-09 | 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ TEMPERATURE +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | Year | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Annual | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | 2006 | | | | | | | | | 74.1| 70.8| 61.8| 53.0| 64.9 | | 2007 | 45.7| 53.3| 64.8| 64.8| 74.8| 80.6| 81.5| 85.0| 80.3| 71.8| 61.8| 53.2| 68.1 | | 2008 | 48.6| 57.9| 62.1| 68.6| 77.7| 86.4| 86.4| 85.8| 83.3| | | | 73.0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ HEATING DEGREE DAYS: Base 65°F +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | Year | JUL | AUG | SEP | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | Total | +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | 2005-06 | | | | | | | | | | | | | 0 | | 2006-07 | | | 0| 35| 154| 379| 589| 332| 93| 103| 0| 0| 1685 | | 2007-08 | 0| 0| 0| 43| 176| 377| 507| 226| 156| 45| 0| 0| 1530 | | 2008-09 | 0| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ COOLING DEGREE DAYS: Base 65°F +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | Year | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Total | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+ | 2006 | | | | | | | | | 65| 223| 69| 17| 374 | | 2007 | 3| 14| 98| 105| 314| 471| 520| 630| 468| 263| 92| 25| 3003 | | 2008 | 9| 27| 73| 163| 403| 650| 671| 654| 74| | | | 2724 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------+------+------+------+------+------+------+------+------+------+------+------+------+---------+STATION LOCATION AND INSTRUMENTATION Round Rock +-------------------------+----------+----------+------------+------------+-----------------------------------------------------+ | | | | | | Elevation Above (ft) | | | | | | +------+----------------------------------------------+ | | | | | | | Ground | | | | | Latitude | Longitude | Sea +-----+-----+-----+---------+-------+----------+ | | | | | | | | | | | | | | Location | Occupied | Occupied | North | West | Level| Wind| Sun | Temp| Humidity| Rain | Barometer| | | From | To | | | | | | | | | | | | | | | | | | | | | | | +-------------------------+----------+----------+------------+------------+------+-----+-----+-----+---------+-------+----------+ | | | | | | | | | | | | | | | 9/24/2006| |30° 32' 55" |97° 37' 34" | 709| 9| 6| 6| 6 | 6 | 3 | |Round Rock, TX 78664 | | | | | | | | | | | | | | | | | | | | | | | | | +-------------------------+----------+----------+------------+------------+------+-----+-----+-----+---------+-------+----------+ Notes: Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches.INSTRUMENTATION DETAIL The following equipment is used for measuring meteorological data at this station: Davis Vantage Pro, Vantage Pro Plus, Vantage Pro2, Vantage Pro2 Plus Wind: Electronic sensors: Large cups: Instantaneous speed to 120 mph and direction to nearest 7°, greater of 2 mph or ±5%. Small cups: Instantaneous speed to 175 mph and direction to nearest 7°, greater of 3 mph or ±5%. Temperature: Electronic sensor: -40° to 140°F, ±1°F. Humidity: Electronic sensor: 0 to 100% RH, ±3%. Barometer: Electronic sensor: 26.00 to 32.00 inches Hg, ±0.05". Rainfall: 6.5-inch diameter electronic tipping bucket rain gauge. Resolution 0.01", ±4%. Sunshine: Electronic sensor: 0 to 1600 W/m^2, 5%. UV: Electronic sensor: 0 to 16 Index, 8%. Snow, ice pellets, glaze and other meteorological phenomenon not recorded by the Weather Computer are manually observed and recorded in the station record.