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Report for 2017 12
 Monthly Climatological Summary for Dec 2017 Name: ofallonweather.com City: O'Fallon State: MO Elevation: 550 ft Lat: N 38° 50' 20" Lon: W 090° 43' 43" 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 44.0 56.1 3:00p 28.0 6:40a 21.0 0.0 0.00 1.9 11.0 12:31p S 2 50.5 63.3 3:06p 37.8 6:43a 14.0 0.0 0.00 1.4 8.0 2:32p SW 3 52.2 65.4 1:15p 36.2 4:44a 12.7 0.0 0.00 3.9 18.0 10:00p SSE 4 62.0 69.7 12:10p 45.1 11:58p 3.9 0.8 0.11 9.6 31.0 10:22p SSW 5 38.0 45.1 12:00a 31.6 7:23a 27.0 0.0 0.01 7.3 29.0 2:06p W 6 39.7 47.5 3:21p 33.7 6:15a 25.3 0.0 0.00 6.7 21.0 9:24p W 7 27.1 35.1 12:00a 20.7 11:50p 37.9 0.0 0.00 5.9 25.0 12:26a WNW 8 27.6 38.8 3:49p 17.8 5:15a 37.4 0.0 0.00 4.0 15.0 10:34a WSW 9 30.4 35.9 12:14p 22.9 11:52p 34.6 0.0 0.00 6.3 24.0 11:41a WNW 10 36.5 51.6 3:06p 22.6 12:48a 28.5 0.0 0.00 4.9 23.0 11:00a W 11 43.4 55.6 11:42a 30.0 2:09a 21.6 0.0 0.00 7.7 33.0 4:05p WNW 12 31.3 40.7 12:00a 25.7 7:41a 33.7 0.0 0.00 6.3 25.0 12:08a NW 13 41.7 57.8 2:51p 27.3 12:00a 23.3 0.0 0.00 9.0 36.0 1:20p W 14 31.1 37.8 12:00a 28.6 11:34p 33.9 0.0 0.00 3.3 17.0 12:01a NNW 15 35.8 43.7 3:42p 28.6 12:09a 29.2 0.0 0.00 4.3 20.0 11:48a W 16 48.1 62.1 2:41p 35.8 12:06a 16.9 0.0 0.00 6.1 24.0 8:53a SW 17 48.2 53.6 2:14p 44.3 5:08a 16.8 0.0 0.00 3.1 14.0 5:27p SW 18 47.6 53.7 3:05p 43.6 10:51p 17.4 0.0 0.00 4.8 19.0 2:34a WSW 19 45.1 52.0 2:05p 37.4 6:18a 19.9 0.0 0.00 2.5 13.0 8:59a W 20 40.7 49.6 2:54p 34.6 8:27a 24.3 0.0 0.00 2.6 12.0 9:05a ENE 21 46.4 57.9 2:13p 31.5 2:31a 18.6 0.0 0.00 3.7 19.0 12:33p SSE 22 40.5 51.0 2:03a 35.1 11:29p 24.5 0.0 0.02 4.2 16.0 3:13a NW 23 31.2 35.7 2:27p 26.7 8:36a 33.8 0.0 0.16 3.5 15.0 3:21a NNW 24 24.1 28.8 12:00a 19.5 11:56p 40.9 0.0 0.00 5.0 26.0 2:13p NW 25 23.4 28.4 2:08p 18.9 5:21a 41.6 0.0 0.00 3.7 12.0 12:11a WNW 26 13.2 23.3 12:00a 7.9 11:56p 51.8 0.0 0.00 3.7 12.0 2:51a NNE 27 7.3 12.3 4:09p 0.5 7:26a 57.7 0.0 0.00 2.0 14.0 12:30p NE 28 14.6 20.0 11:38p 8.7 4:20a 50.4 0.0 0.00 3.1 11.0 3:08a SSE 29 21.7 25.9 3:15p 13.7 5:27a 43.3 0.0 0.00 2.0 12.0 12:56p SE 30 13.8 23.3 12:00a 4.1 10:52p 51.2 0.0 0.00 4.1 18.0 5:58a NNW 31 5.9 11.4 2:46p 0.5 11:56p 59.1 0.0 0.00 4.5 16.0 2:10p NNW ---------------------------------------------------------------------------------- 34.3 69.7 4 0.5 27 952.2 0.8 0.30 4.6 36.0 13 W Max >= 90.0: 0 Max <= 32.0: 8 Min <= 32.0: 21 Min <= 0.0: 0 Max Rain: 0.16 on day 23 Days of Rain: 4 (>= 0.01 in) 2 (>= 0.10 in) 0 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration
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