MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2009 NAME: ARBORGRN CITY: Owings STATE: MD ELEV: 102 ft LAT: 38° 41' 22" N LONG: 76° 38' 12" 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 42.6 55.0 3:00p 29.5 7:30a 22.4 0.0 0.00 0.5 10.0 11:30a S 2 49.3 59.2 12:00m 40.3 6:30a 15.7 0.0 0.75 2.7 21.0 6:30p ESE 3 57.1 65.8 12:00p 38.5 12:00m 7.9 0.0 0.24 2.9 21.0 4:15a NW 4 42.7 50.5 11:15a 33.7 7:00a 22.3 0.0 0.00 0.2 9.0 11:30a NW 5 37.7 45.4 4:00a 32.7 2:45p 27.3 0.0 0.30 0.7 16.0 11:30p NW 6 31.9 37.2 2:45p 27.9 11:15p 33.1 0.0 0.19 1.4 13.0 10:45a NW 7 33.8 43.5 1:00p 26.0 7:30a 31.2 0.0 0.24 0.2 11.0 11:00a SSE 8 37.1 44.6 1:00p 29.5 2:00a 27.9 0.0 0.36 0.3 7.0 11:00a E 9 48.6 55.6 2:45p 38.6 12:15a 16.4 0.0 1.08 1.8 19.0 3:30p S 10 39.7 47.6 12:45a 29.3 12:00m 25.3 0.0 0.00 3.3 19.0 10:15p NW 11 29.7 37.8 3:30p 23.3 7:30a 35.3 0.0 0.00 2.4 20.0 3:00p W 12 32.0 42.5 1:45p 20.6 7:45a 33.0 0.0 0.00 0.3 7.0 10:15a S 13 37.5 41.6 4:45p 32.7 12:15a 27.5 0.0 0.60 0.4 6.0 3:30p NW 14 41.0 51.6 1:45p 30.0 7:45a 24.0 0.0 0.00 0.5 10.0 7:30p SSE 15 48.7 57.0 2:45p 41.2 12:00m 16.3 0.0 0.00 1.8 17.0 11:00p NW 16 35.6 41.2 12:15a 29.0 10:45p 29.4 0.0 0.00 2.8 19.0 3:45a NW 17 29.4 36.8 3:45p 23.6 11:45p 35.6 0.0 0.00 1.9 15.0 7:15a NNW 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ------------------------------------------------------------------------------------- 39.7 65.8 3 20.6 12 430.6 0.0 3.76 1.4 21.0 2 NW Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 10 Min <= 0.0: 0 Max Rain: 1.08 ON 12/09/09 Days of Rain: 8 (>.01 in) 8 (>.1 in) 1 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration