MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2009 NAME: henwood CITY: Seattle STATE: WA ELEV: 0 ft LAT: 47° 40' 51" N LONG: 122° 17' 53" 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 39.9 46.7 2:00p 32.3 11:15p 25.1 0.0 0.00 1.3 12.0 1:00p N 2 37.3 45.5 2:30p 31.0 6:15a 27.7 0.0 0.00 1.8 11.0 10:30a NNE 3 35.7 45.9 2:15p 29.6 6:00a 29.3 0.0 0.00 0.3 8.0 2:30p NNW 4 33.1 39.5 1:15p 28.5 5:30a 31.9 0.0 0.09 0.2 7.0 2:30p NNW 5 34.0 42.4 3:30p 26.7 7:45a 31.0 0.0 0.01 0.8 11.0 10:15p NNE 6 34.1 38.3 5:30a 27.2 12:00m 30.9 0.0 0.00 1.4 11.0 4:15p NNE 7 24.8 32.1 2:45p 18.8 7:30a 40.2 0.0 0.00 0.5 10.0 2:15p SSE 8 23.1 31.9 3:00p 16.7 5:15a 41.9 0.0 0.00 0.4 6.0 12:00p NNE 9 23.3 33.2 3:00p 16.3 6:00a 41.7 0.0 0.00 0.4 7.0 12:45p NNE 10 25.3 36.5 3:15p 16.4 7:45a 39.7 0.0 0.00 0.4 5.0 11:00a N 11 26.7 37.1 2:30p 19.0 7:15a 38.3 0.0 0.00 0.2 6.0 1:30p NNW 12 30.3 40.0 2:45p 22.0 7:00a 34.7 0.0 0.00 1.0 8.0 2:45p NNE 13 35.4 39.3 1:45p 32.4 7:00a 29.6 0.0 0.00 1.6 17.0 3:45p S 14 37.5 40.5 2:30p 32.3 2:15a 27.5 0.0 0.40 0.3 8.0 12:15a NE 15 42.6 47.2 10:00p 38.1 1:30a 22.4 0.0 0.33 1.2 15.0 10:45p S 16 47.3 51.5 1:45p 41.3 5:15a 17.7 0.0 0.27 3.5 20.0 11:30a S 17 47.2 51.1 2:30p 43.4 11:00p 17.8 0.0 0.01 0.9 13.0 1:15a S 18 47.7 53.6 3:00p 40.9 6:45a 17.3 0.0 0.03 0.2 7.0 6:45p S 19 45.5 48.2 12:15a 44.4 6:15p 19.5 0.0 0.17 0.9 9.0 7:30a N 20 49.1 55.5 2:30p 45.0 1:00a 15.9 0.0 0.12 0.8 9.0 1:15p S 21 45.0 50.6 12:15a 38.9 9:15p 20.0 0.0 0.45 4.4 22.0 9:15a S 22 38.7 40.2 3:15p 36.0 6:30a 26.3 0.0 0.04 0.4 9.0 12:15a S 23 38.8 42.8 2:30p 36.1 8:45a 26.2 0.0 0.00 0.2 5.0 11:30a SE 24 35.9 44.4 3:30p 31.0 8:45a 29.1 0.0 0.01 0.5 5.0 11:00a NNE 25 35.3 46.9 3:15p 29.4 8:15a 29.7 0.0 0.01 0.7 6.0 9:30a N 26 41.3 54.2 1:30p 30.1 7:30a 23.7 0.0 0.00 1.0 17.0 11:45a NNW 27 37.3 48.8 2:15p 30.9 7:15a 27.7 0.0 0.00 0.2 6.0 3:15p WNW 28 39.5 48.6 2:45p 32.0 12:00m 25.5 0.0 0.02 0.2 6.0 2:45p W 29 35.7 41.7 7:30p 28.4 7:00a 29.3 0.0 0.05 0.2 8.0 7:15p S 30 42.6 47.6 3:00p 38.2 2:15a 22.4 0.0 0.00 4.4 24.0 2:30p S 31 41.6 47.7 12:00m 36.3 6:15a 23.4 0.0 0.39 0.4 11.0 12:15a ESE ------------------------------------------------------------------------------------- 37.1 55.5 20 16.3 9 863.4 0.0 2.40 1.0 24.0 30 NNE Max >= 90.0: 0 Max <= 32.0: 1 Min <= 32.0: 17 Min <= 0.0: 0 Max Rain: 0.45 ON 12/21/09 Days of Rain: 12 (>.01 in) 7 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration