History for St. Charles, MO

Tuesday, December 11, 2012 — View Current Conditions
Tuesday, December 11, 2012
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Daily Weekly Monthly Custom
  Actual Average (KSTL) Record (KSTL)
Temperature
Mean Temperature 29 °F 36 °F  
Max Temperature 39 °F 43 °F 70 °F (1949)
Min Temperature 19 °F 28 °F 2 °F (1962)
Degree Days
Heating Degree Days 36 29  
Month to date heating degree days 303  
Since 1 July heating degree days 1129  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 1646  
Moisture
Dew Point 21 °F    
Average Humidity 74    
Maximum Humidity 92    
Minimum Humidity 43    
Precipitation
Precipitation 0.00 in 0.09 in 1.20 in (1949)
Month to date precipitation 1.10  
Year to date precipitation 39.22  
Snow
Snow 0.00 in 0.10 in 4.30 in (1963)
Month to date snowfall 1.1  
Since 1 July snowfall 1.8  
Snow Depth -    
Sea Level Pressure
Sea Level Pressure 30.14 in    
Wind
Wind Speed 5 mph (SW)    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Astronomy
May. 24, 2013 Rise Set
Actual Time 7:10 AM CST 4:39 PM CST
Civil Twilight 6:40 AM CST 5:09 PM CST
Nautical Twilight 6:07 AM CST 5:43 PM CST
Astronomical Twilight 5:34 AM CST 6:15 PM CST
Moon 5:06 AM CST (12/11) 3:18 PM CST (12/11)
Length Of Visible Light 10h 28m
Length of Day
9h 29m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
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Hourly Observations
Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 26.1 °F 19.4 °F 19.0 °F 75% 30.09 in 10.0 mi WSW 5.8 mph - N/A   Clear
1:54 AM 25.0 °F 17.1 °F 19.0 °F 78% 30.10 in 10.0 mi West 6.9 mph - N/A   Clear
2:54 AM 21.9 °F - 18.0 °F 85% 30.10 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 21.0 °F 16.2 °F 19.0 °F 92% 30.10 in 10.0 mi South 3.5 mph - N/A   Clear
4:54 AM 21.0 °F 16.2 °F 17.1 °F 85% 30.10 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:54 AM 23.0 °F 13.9 °F 18.0 °F 81% 30.11 in 10.0 mi SW 8.1 mph - N/A   Clear
6:54 AM 19.9 °F 11.1 °F 17.1 °F 89% 30.11 in 10.0 mi SSW 6.9 mph - N/A   Clear
7:54 AM 23.0 °F 13.1 °F 19.0 °F 85% 30.12 in 10.0 mi SSW 9.2 mph - N/A   Clear
8:54 AM 27.0 °F 16.7 °F 21.9 °F 81% 30.13 in 10.0 mi South 11.5 mph - N/A   Clear
9:54 AM 28.9 °F 20.4 °F 21.9 °F 75% 30.15 in 10.0 mi SSW 9.2 mph - N/A   Clear
10:54 AM 33.1 °F 26.1 °F 19.9 °F 59% 30.15 in 10.0 mi SW 8.1 mph - N/A   Clear
11:54 AM 35.1 °F 27.9 °F 19.9 °F 54% 30.13 in 10.0 mi SW 9.2 mph - N/A   Clear
12:54 PM 36.0 °F 29.0 °F 19.9 °F 52% 30.12 in 10.0 mi SW 9.2 mph - N/A   Clear
1:54 PM 37.9 °F 32.7 °F 19.9 °F 48% 30.11 in 10.0 mi SW 6.9 mph - N/A   Clear
2:54 PM 39.9 °F 35.1 °F 19.0 °F 43% 30.11 in 10.0 mi WSW 6.9 mph - N/A   Clear
3:54 PM 39.0 °F 35.7 °F 21.0 °F 49% 30.12 in 10.0 mi SSW 4.6 mph - N/A   Clear
4:54 PM 34.0 °F 28.8 °F 25.0 °F 70% 30.13 in 10.0 mi South 5.8 mph - N/A   Clear
5:54 PM 30.9 °F - 24.1 °F 76% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:54 PM 28.9 °F - 24.1 °F 82% 30.16 in 10.0 mi Calm Calm - N/A   Clear
7:54 PM 30.0 °F - 24.1 °F 79% 30.18 in 10.0 mi Calm Calm - N/A   Clear
8:54 PM 28.9 °F - 25.0 °F 85% 30.19 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 25.0 °F - 21.0 °F 85% 30.20 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 27.0 °F - 21.9 °F 81% 30.22 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 26.1 °F - 24.1 °F 92% 30.23 in 10.0 mi Calm Calm - N/A   Clear
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