MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2010 NAME: Ranch2 CITY: Petaluma STATE: CA ELEV: 26 ft LAT: 38° 09' 45" N LONG: 122° 46' 51" 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 43.4 63.5 12:00p 32.1 3:45a 21.6 0.0 0.01 0.0 5.0 12:00p W 2 49.4 58.4 1:15p 37.7 12:30a 15.6 0.0 0.07 0.0 5.0 6:45a W 3 50.4 58.9 11:30a 47.4 7:15a 14.6 0.0 0.01 1.0 16.0 6:45p NW 4 51.5 55.2 2:00p 49.2 5:15a 13.5 0.0 0.11 1.2 14.0 1:30p NNW 5 52.1 54.5 1:30p 49.7 4:30p 12.9 0.0 0.66 1.6 22.0 6:15p NNE 6 53.6 60.2 12:15p 43.5 12:00m 11.4 0.0 0.14 2.3 24.0 12:30a NNE 7 50.4 67.2 11:45a 42.4 1:15a 14.6 0.1 0.00 0.2 9.0 9:45a NNE 8 52.9 55.3 2:15p 44.5 12:15a 12.1 0.0 0.53 0.2 9.0 3:15a NNW 9 56.5 68.0 3:00p 53.2 7:45a 8.6 0.1 0.06 0.0 6.0 10:30p WSW 10 57.5 61.1 2:45p 55.3 12:00m 7.5 0.0 0.02 0.4 9.0 1:00p SSE 11 58.5 76.9 1:45p 51.6 8:15p 7.7 1.2 0.01 0.1 6.0 2:45p S 12 56.8 59.1 1:45p 54.7 11:30p 8.2 0.0 0.00 0.2 9.0 3:00a NNE 13 55.2 61.8 12:00p 49.7 8:00p 9.8 0.0 0.00 0.0 5.0 2:00p N 14 53.5 57.8 10:30a 46.8 12:00m 11.5 0.0 0.29 1.2 13.0 3:45a SE 15 45.3 61.6 2:00p 34.4 12:00m 19.7 0.0 0.01 0.2 10.0 2:15p SSE 16 43.9 60.9 12:45p 32.3 3:45a 21.1 0.0 0.00 0.3 10.0 12:00m NW 17 47.1 53.8 9:15p 44.4 3:45a 17.9 0.0 0.73 2.1 22.0 10:30p NW 18 54.9 57.1 11:30a 52.6 6:15p 10.1 0.0 0.62 2.8 26.0 12:15a NNE 19 51.3 54.8 12:15a 45.8 9:00p 13.7 0.0 1.08 2.6 20.0 10:45a SSE 20 47.7 52.0 11:00a 44.2 8:30a 17.3 0.0 0.69 1.7 17.0 10:15a NNE 21 50.5 55.1 1:00p 46.9 1:15a 14.5 0.0 0.51 0.7 14.0 11:30p NNW 22 48.9 55.4 3:15p 35.9 12:00m 16.1 0.0 0.19 0.6 12.0 12:15a SSE 23 43.6 61.8 12:30p 33.5 3:00a 21.4 0.0 0.00 0.1 7.0 3:00p NE 24 46.4 59.7 1:15p 37.8 12:15a 18.6 0.0 0.01 0.3 11.0 12:15p WNW 25 47.4 53.6 9:00a 39.2 11:30p 17.6 0.0 0.82 1.1 21.0 11:30a WNW 26 50.0 53.6 11:15a 41.0 12:15a 15.0 0.0 0.12 1.1 13.0 2:45p NE 27 49.1 64.2 12:45p 42.6 8:15a 15.9 0.0 0.01 0.2 11.0 1:45p WSW 28 50.2 55.7 9:30p 45.8 1:30a 14.8 0.0 1.54 2.4 28.0 7:00p NNW 29 46.9 53.9 12:15a 32.7 12:00m 18.1 0.0 0.05 3.5 24.0 1:00a SSE 30 41.0 54.1 1:30p 30.1 2:00a 24.0 0.0 0.01 1.1 13.0 11:30a NE 31 39.3 47.5 11:45a 30.7 7:30a 25.7 0.0 0.04 0.4 7.0 2:30p NW ------------------------------------------------------------------------------------- 49.8 76.9 11 30.1 30 471.1 1.4 8.34 1.0 28.0 28 NNE Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 2 Min <= 0.0: 0 Max Rain: 1.54 ON 12/28/10 Days of Rain: 19 (>.01 in) 14 (>.1 in) 2 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration