MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2021 NAME: henwood CITY: Seattle STATE: WA ELEV: 168 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 55.4 57.3 2:10p 51.1 12:00m 9.6 0.0 0.01 3.1 23.0 3:50a SSW 2 45.9 51.1 12:10a 39.4 12:00m 19.1 0.0 0.21 0.2 11.0 2:00p N 3 38.7 42.4 2:10p 35.2 6:30a 26.3 0.0 0.00 0.3 11.0 12:50p N 4 38.6 40.9 12:50p 32.6 11:30p 26.4 0.0 0.31 0.1 8.0 8:30a NNE 5 36.9 41.9 1:50p 32.7 12:10a 28.1 0.0 0.03 0.0 7.0 4:20a NNE 6 41.3 44.4 6:40p 37.5 12:10a 23.7 0.0 0.08 0.2 8.0 2:00a SE 7 46.3 49.3 9:50p 43.3 7:00a 18.7 0.0 0.06 0.8 19.0 10:10p SSE 8 43.2 49.5 12:30a 38.2 8:50p 21.8 0.0 0.24 1.4 22.0 1:20a SSW 9 39.7 43.7 2:50p 35.5 7:10p 25.3 0.0 0.01 1.0 15.0 7:40a SSW 10 42.1 45.3 9:50p 38.2 12:10a 22.9 0.0 0.30 2.6 25.0 12:00m S 11 44.5 48.5 1:10p 40.0 11:00p 20.5 0.0 0.49 5.3 31.0 3:00a SSW 12 39.3 42.3 11:50a 35.6 10:50p 25.7 0.0 0.15 2.4 19.0 12:00p S 13 39.9 41.6 9:20p 36.8 12:10a 25.1 0.0 0.17 0.9 19.0 9:10p S 14 37.9 40.5 12:10a 35.4 6:40a 27.1 0.0 0.09 1.3 18.0 12:10p S 15 40.0 43.6 12:00p 36.7 6:10a 25.0 0.0 0.12 0.3 13.0 3:20p SSE 16 39.3 43.2 12:40p 36.0 9:50p 25.7 0.0 0.04 0.1 12.0 3:50p SSE 17 39.1 44.1 3:00p 35.5 4:10a 25.9 0.0 0.15 0.1 9.0 7:50p ENE 18 42.3 49.7 12:30p 38.4 12:20a 22.7 0.0 0.64 1.5 22.0 12:30p S 19 40.1 45.4 1:10p 35.4 9:00p 24.9 0.0 0.00 0.3 10.0 3:10p NNE 20 36.5 38.6 1:30p 35.3 2:50a 28.5 0.0 0.00 0.3 9.0 1:30p NNE 21 37.2 42.4 12:00m 34.0 8:10a 27.8 0.0 0.17 0.7 12.0 7:50p S 22 46.1 50.0 12:40p 42.3 12:10a 18.9 0.0 0.53 2.3 20.0 3:30a S 23 41.8 45.6 1:00a 39.6 11:40p 23.2 0.0 0.09 2.5 18.0 7:50a SSW 24 38.9 41.6 12:30p 36.9 9:50p 26.1 0.0 0.41 2.6 23.0 3:10a S 25 36.6 38.6 11:10a 32.0 12:00m 28.4 0.0 0.12 2.9 26.0 8:00a SSW 26 25.9 32.0 12:10a 20.8 11:20p 39.1 0.0 0.00 2.1 16.0 11:20a N 27 21.2 25.3 1:40p 16.0 8:40a 43.8 0.0 0.02 1.1 17.0 1:20a NNE 28 26.3 29.0 1:50p 24.3 12:10a 38.7 0.0 0.00 0.1 9.0 8:40p E 29 26.7 29.5 1:40p 21.3 8:10a 38.3 0.0 0.00 0.8 15.0 4:40a NNE 30 31.8 33.9 9:50a 28.6 12:10a 33.2 0.0 0.01 0.6 16.0 10:00a S 31 27.4 33.3 1:40p 19.6 12:00m 37.6 0.0 0.00 0.4 13.0 11:50a N ------------------------------------------------------------------------------------- 38.3 57.3 1 16.0 27 828.1 0.0 4.45 1.2 31.0 11 S Max >= 90.0: 0 Max <= 32.0: 4 Min <= 32.0: 7 Min <= 0.0: 0 Max Rain: 0.64 ON 12/18/21 Days of Rain: 21 (>.01 in) 14 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration