Homepage

2020: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2019: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2018: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2017: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2016: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2015: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2014: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2013: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2012: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2011: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2010: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2009: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2008: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2007: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2006: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 
2005: Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec 

Report for 2020 09
 Monthly Climatological Summary for Sep 2020 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 70.5 74.5 3:15p 68.8 11:58p 0.0 5.5 0.53 1.7 13.0 5:16p S 2 73.2 80.3 4:20p 67.8 1:27a 0.0 8.2 0.00 1.2 8.0 12:23p WNW 3 75.1 87.0 5:23p 64.9 6:18a 0.0 10.1 0.00 3.1 18.0 5:00p W 4 68.7 81.3 5:10p 56.1 7:03a 1.7 5.4 0.00 1.2 10.0 2:09p NNW 5 73.6 87.1 5:40p 61.0 1:17a 0.9 9.4 0.00 2.2 14.0 10:43a SW 6 78.3 89.5 4:04p 70.2 6:20a 0.0 13.3 0.00 5.2 23.0 4:42p SSW 7 80.6 89.6 3:42p 73.3 7:21a 0.0 15.6 0.00 4.7 18.0 2:12p SW 8 74.8 83.1 1:09p 68.1 11:56p 0.0 9.8 0.66 3.4 16.0 1:34p SW 9 69.3 79.4 5:09p 62.8 6:12a 0.4 4.7 0.00 2.4 11.0 8:50p NNE 10 70.0 77.3 3:13p 66.2 6:36a 0.0 5.0 0.01 2.4 10.0 2:49p NNE 11 73.9 83.9 4:20p 66.2 2:54a 0.0 8.9 0.91 2.0 11.0 8:33p SE 12 70.8 75.1 1:25p 65.3 11:57p 0.0 5.8 0.23 2.3 12.0 1:33p W 13 66.9 74.9 4:23p 60.9 6:48a 1.0 2.9 0.00 2.0 12.0 3:05p N 14 68.1 79.5 5:12p 57.8 6:47a 2.0 5.1 0.00 1.8 14.0 1:04p ENE 15 66.7 78.7 3:38p 56.7 7:07a 2.3 4.1 0.00 1.1 10.0 1:51p SE 16 66.9 80.5 5:20p 56.8 6:51a 2.5 4.3 0.00 0.7 9.0 1:23p NNW 17 66.5 75.5 2:48p 61.0 11:57p 1.4 2.9 0.00 2.9 15.0 1:44p N 18 61.3 70.8 4:13p 52.6 6:59a 4.9 1.2 0.00 2.6 14.0 12:12p NE 19 57.1 68.8 4:51p 45.5 6:47a 8.6 0.7 0.00 1.6 13.0 1:19p ESE 20 59.0 74.1 4:20p 45.4 7:01a 8.1 2.1 0.00 1.5 14.0 11:36a ESE 21 63.1 77.9 4:51p 47.1 7:10a 5.8 3.9 0.00 1.5 10.0 1:45p SSE 22 64.6 74.8 3:16p 54.2 6:29a 3.1 2.7 0.00 1.4 10.0 2:09p SSE 23 64.1 72.0 4:30p 57.5 6:04a 2.9 1.9 0.00 1.1 7.0 3:00p SSE 24 61.8 73.5 4:50p 53.1 4:46a 4.8 1.6 0.00 1.8 13.0 12:01p S ---------------------------------------------------------------------------------- 68.5 89.6 7 45.4 20 50.4 135.1 2.34 2.2 23.0 6 SSW Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.91 on day 11 Days of Rain: 5 (>= 0.01 in) 4 (>= 0.10 in) 0 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration
USA Weather Finder