MONTHLY CLIMATOLOGICAL SUMMARY for FEB. 2012 NAME: Westlawn CITY: Fairfax County STATE: VA ELEV: 328 ft LAT: 38° 51' 30" N LONG: 77° 10' 50" W TEMPERATURE (°F), RAIN (in), WIND SPEED (mph) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 56.5 68.4 1:30p 46.4 8:00a 8.9 0.4 0.02 0.7 17.0 1:00p SSW 2 49.7 55.6 12:30a 41.3 12:00m 15.3 0.0 0.05 1.7 21.0 4:30p N 3 39.5 47.7 4:00p 32.7 12:00m 25.5 0.0 0.00 0.9 16.0 10:30a NW 4 36.7 44.1 2:30p 30.6 4:30a 28.3 0.0 0.04 0.8 13.0 1:00p N 5 36.9 41.6 5:00p 29.5 12:00m 28.1 0.0 0.00 1.5 16.0 2:30p N 6 37.1 50.7 3:00p 25.6 7:00a 27.9 0.0 0.00 0.9 14.0 12:00p SSW 7 44.5 52.8 3:30p 36.0 12:30a 20.5 0.0 0.00 2.0 15.0 9:30a N 8 36.2 41.5 2:00p 31.8 3:30a 28.8 0.0 0.08 0.4 10.0 9:30a NE 9 36.0 43.3 4:00p 30.3 7:00a 29.0 0.0 0.00 1.9 17.0 9:30a WNW 10 38.2 47.1 2:30p 30.0 7:30a 26.8 0.0 0.00 0.8 10.0 10:00a N 11 33.3 41.5 2:30p 21.1 12:00m 31.7 0.0 0.10 4.0 33.0 9:30p N 12 24.8 29.8 4:30p 20.3 1:00a 40.2 0.0 0.01 6.3 30.0 2:30a NW 13 33.1 45.7 3:30p 19.4 7:30a 31.9 0.0 0.00 1.2 17.0 10:30a W 14 42.8 53.5 2:00p 34.3 12:30a 22.2 0.0 0.00 0.4 15.0 1:00p SSW 15 44.2 51.6 3:30p 37.8 10:30p 20.8 0.0 0.00 1.6 17.0 12:30p NW 16 41.9 44.8 12:00p 37.6 1:30a 23.1 0.0 0.12 0.1 14.0 9:30a S 17 44.0 51.4 2:00p 36.9 4:00a 21.0 0.0 0.00 2.0 21.0 12:30p NW 18 43.9 57.2 4:30p 29.1 7:30a 21.1 0.0 0.00 1.8 17.0 1:00p SSW 19 38.8 43.3 12:30a 35.0 10:30p 26.2 0.0 0.07 3.0 16.0 6:30p N 20 37.2 46.0 3:30p 29.5 12:00m 27.8 0.0 0.00 2.9 20.0 9:00a N 21 37.8 48.0 5:00p 25.4 6:00a 27.2 0.0 0.00 1.8 21.0 2:30p SSW 22 50.6 61.3 4:00p 38.3 7:00a 13.5 0.0 0.00 1.4 18.0 3:30p SSW 23 24 25 26 27 28 29 ------------------------------------------------------------------------------------- 40.2 68.4 1 19.4 13 545.8 0.4 0.49 1.7 33.0 11 N Max >= 90.0: 0 Max <= 32.0: 1 Min <= 32.0: 12 Min <= 0.0: 0 Max Rain: 0.12 ON 02/16/12 Days of Rain: 7 (>.01 in) 1 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration