Weather History for St. Charles, MO

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Tuesday, March 12, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 37 °F 45 °F  
Max Temperature 48 °F 54 °F 84 °F (1972)
Min Temperature 28 °F 35 °F 1 °F (1948)
Degree Days  
Heating Degree Days 28 20  
Month to date heating degree days 268  
Since 1 July heating degree days 3866  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 25 °F    
Average Humidity 63    
Maximum Humidity 79    
Minimum Humidity 46    
Precipitation  
Precipitation 0.01 in 0.10 in 1.42 in (1961)
Month to date precipitation 1.11  
Year to date precipitation 5.75  
Snow  
Snow 0.00 in 0.10 in 7.00 in (1968)
Month to date snowfall 1.3  
Since 1 July snowfall 16.3  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 25 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 12, 2013 Rise Set
Actual Time 7:17 AM CDT 7:06 PM CDT
Civil Twilight 6:50 AM CDT 7:32 PM CDT
Nautical Twilight 6:19 AM CDT 8:03 PM CDT
Astronomical Twilight 5:48 AM CDT 8:34 PM CDT
Moon 7:24 AM CDT (3/12) 8:20 PM CDT (3/12)
Length of Visible Light 12h 41m
Length of Day
11h 48m
New Moon, 1% of the Moon is Illuminated
Mar 12
New Moon
Mar 19
First Quarter
Mar 27
Full
Apr 2
Last Quarter
Apr 10
New

Hourly Weather History & Observations

Time (CDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 33.1 °F 25.5 °F 23.0 °F 66% 29.99 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
1:54 AM 32.0 °F 25.6 °F 24.1 °F 73% 30.02 in 10.0 mi West 6.9 mph - N/A   Clear
2:54 AM 30.9 °F 26.2 °F 25.0 °F 79% 30.03 in 10.0 mi West 4.6 mph - N/A   Clear
3:54 AM 30.9 °F 23.5 °F 24.1 °F 76% 30.02 in 10.0 mi West 8.1 mph - N/A   Clear
4:54 AM 30.0 °F 22.4 °F 24.1 °F 79% 30.03 in 10.0 mi West 8.1 mph - N/A   Clear
5:54 AM 30.0 °F 25.2 °F 24.1 °F 79% 30.06 in 10.0 mi WNW 4.6 mph - N/A   Clear
6:54 AM 28.9 °F 21.1 °F 23.0 °F 78% 30.07 in 10.0 mi West 8.1 mph - N/A   Clear
7:54 AM 28.9 °F 21.9 °F 23.0 °F 78% 30.09 in 10.0 mi West 6.9 mph - N/A   Clear
8:54 AM 30.9 °F 20.7 °F 24.1 °F 76% 30.12 in 10.0 mi West 13.8 mph - N/A   Clear
9:54 AM 34.0 °F 25.0 °F 24.1 °F 67% 30.13 in 10.0 mi West 12.7 mph - N/A   Clear
10:54 AM 36.0 °F 29.6 °F 24.1 °F 62% 30.12 in 10.0 mi West 8.1 mph - N/A   Clear
11:54 AM 39.9 °F 32.5 °F 25.0 °F 55% 30.12 in 10.0 mi West 12.7 mph - N/A   Clear
12:54 PM 44.1 °F 39.0 °F 27.0 °F 51% 30.11 in 10.0 mi West 9.2 mph - N/A   Clear
1:54 PM 46.9 °F - 27.0 °F 46% 30.09 in 10.0 mi West 15.0 mph 27.6 mph N/A   Partly Cloudy
2:54 PM 46.9 °F - 28.0 °F 48% 30.07 in 10.0 mi WNW 17.3 mph 24.2 mph N/A   Mostly Cloudy
3:54 PM 46.9 °F - 27.0 °F 46% 30.08 in 10.0 mi WNW 21.9 mph 31.1 mph N/A   Overcast
4:54 PM 45.0 °F 37.1 °F 27.0 °F 49% 30.09 in 10.0 mi WNW 19.6 mph 28.8 mph 0.01 in   Overcast
5:54 PM 44.1 °F 35.7 °F 27.0 °F 51% 30.11 in 10.0 mi WNW 20.7 mph 28.8 mph N/A   Scattered Clouds
6:54 PM 39.9 °F 29.2 °F 23.0 °F 51% 30.14 in 10.0 mi WNW 25.3 mph 36.8 mph N/A   Scattered Clouds
7:54 PM 37.9 °F 28.9 °F 23.0 °F 55% 30.16 in 10.0 mi West 16.1 mph 23.0 mph N/A   Partly Cloudy
8:54 PM 37.0 °F 27.0 °F 25.0 °F 62% 30.17 in 10.0 mi WNW 18.4 mph 23.0 mph N/A   Scattered Clouds
9:54 PM 37.0 °F 27.4 °F 24.1 °F 59% 30.18 in 10.0 mi WNW 17.3 mph 25.3 mph N/A   Overcast
10:54 PM 35.1 °F 25.2 °F 23.0 °F 61% 30.20 in 10.0 mi WNW 16.1 mph 23.0 mph N/A   Overcast
11:54 PM 34.0 °F 24.2 °F 21.9 °F 61% 30.22 in 10.0 mi WNW 15.0 mph 21.9 mph N/A   Overcast