Weather History for St. Charles, MO

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Sunday, November 20, 2011

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 48 °F 45 °F  
Max Temperature 59 °F 53 °F 76 °F (1942)
Min Temperature 37 °F 36 °F 14 °F (1914)
Degree Days  
Heating Degree Days 17 20  
Month to date heating degree days 319  
Since 1 July heating degree days 595  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 1642  
Moisture  
Dew Point 36 °F    
Average Humidity 77    
Maximum Humidity 89    
Minimum Humidity 62    
Precipitation  
Precipitation 0.15 in 0.14 in 1.64 in (1956)
Month to date precipitation 2.59  
Year to date precipitation 36.80  
Snow  
Snow 0.00 in 0.00 in 3.30 in (1926)
Month to date snowfall 0.3  
Since 1 July snowfall 0.3  
Since 1 September snowfall 0.3  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.19 in    
Wind  
Wind Speed 10 mph (North)    
Max Wind Speed 14 mph    
Max Gust Speed 20 mph    
Visibility 7 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Nov. 20, 2011 Rise Set
Actual Time 6:49 AM CST 4:44 PM CST
Civil Twilight 6:20 AM CST 5:13 PM CST
Nautical Twilight 5:48 AM CST 5:45 PM CST
Astronomical Twilight 5:16 AM CST 6:17 PM CST
Moon 1:20 AM CST (11/20) 1:31 PM CST (11/20)
Length of Visible Light 10h 52m
Length of Day
9h 54m
Waning Crescent, 27% of the Moon is Illuminated
Nov 20
Waning Crescent
Nov 25
New
Dec 2
First Quarter
Dec 10
Full
Dec 17
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 59.0 °F - 46.0 °F 62% 30.01 in 10.0 mi NNW 11.5 mph - N/A   Overcast
1:54 AM 53.1 °F - 42.1 °F 66% 30.05 in 4.0 mi NW 11.5 mph - N/A   Haze
2:54 AM 50.0 °F - 39.9 °F 68% 30.07 in 5.0 mi NNW 11.5 mph - N/A   Haze
3:54 AM 46.0 °F 39.9 °F 37.0 °F 71% 30.10 in 7.0 mi North 13.8 mph - N/A   Overcast
4:54 AM 42.1 °F 36.1 °F 35.1 °F 76% 30.14 in 9.0 mi North 10.4 mph - 0.00 in Rain Light Rain
6:54 AM 37.0 °F 29.3 °F 30.0 °F 76% 30.20 in 9.0 mi North 11.5 mph - 0.00 in Rain Light Rain
7:54 AM 37.0 °F 29.3 °F 30.0 °F 76% 30.22 in 8.0 mi North 11.5 mph - 0.00 in Rain Light Rain
8:54 AM 37.9 °F 29.6 °F 30.0 °F 73% 30.22 in 10.0 mi NNE 13.8 mph 19.6 mph 0.00 in   Overcast
9:54 AM 39.0 °F 32.3 °F 30.0 °F 70% 30.25 in 9.0 mi NNE 10.4 mph - N/A   Overcast
10:54 AM 39.9 °F 34.5 °F 30.9 °F 70% 30.22 in 9.0 mi NNE 8.1 mph - N/A   Overcast
11:54 AM 41.0 °F 36.4 °F 30.9 °F 67% 30.21 in 9.0 mi NE 6.9 mph - N/A   Overcast
12:54 PM 42.1 °F 36.6 °F 32.0 °F 67% 30.21 in 10.0 mi North 9.2 mph - N/A   Overcast
1:54 PM 41.0 °F 35.8 °F 33.1 °F 73% 30.21 in 6.0 mi North 8.1 mph - 0.00 in Rain Light Rain
2:21 PM 39.2 °F 32.5 °F 35.6 °F 87% 30.19 in 2.5 mi NNE 10.4 mph - 0.06 in Rain Rain
2:40 PM 39.2 °F 35.9 °F 35.6 °F 87% 30.20 in 2.0 mi North 4.6 mph - 0.15 in Rain Light Rain
2:54 PM 39.9 °F 36.7 °F 36.0 °F 86% 30.22 in 5.0 mi NNW 4.6 mph - 0.15 in Rain Light Rain
3:54 PM 41.0 °F 39.0 °F 37.0 °F 86% 30.22 in 6.0 mi NE 3.5 mph - 0.00 in   Overcast
5:54 PM 42.1 °F 38.4 °F 37.9 °F 85% 30.22 in 7.0 mi North 5.8 mph - N/A   Overcast
6:54 PM 43.0 °F 41.3 °F 39.0 °F 86% 30.24 in 7.0 mi NW 3.5 mph - N/A   Overcast
7:54 PM 43.0 °F 41.3 °F 39.9 °F 89% 30.24 in 6.0 mi WNW 3.5 mph - N/A   Overcast
8:54 PM 43.0 °F - 39.9 °F 89% 30.23 in 5.0 mi Calm Calm - N/A   Overcast
9:54 PM 45.0 °F 40.1 °F 39.9 °F 82% 30.19 in 7.0 mi NE 9.2 mph - N/A   Overcast
10:54 PM 44.1 °F 40.1 °F 39.0 °F 82% 30.19 in 8.0 mi North 6.9 mph - N/A   Overcast
11:54 PM 44.1 °F 40.8 °F 39.0 °F 82% 30.22 in 7.0 mi North 5.8 mph - N/A   Overcast