Weather History for St. Charles, MO

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Monday, January 7, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 32 °F 32 °F  
Max Temperature 45 °F 39 °F 73 °F (1965)
Min Temperature 19 °F 24 °F -14 °F (1912)
Degree Days  
Heating Degree Days 33 33  
Month to date heating degree days 231  
Since 1 July heating degree days 1996  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 23 °F    
Average Humidity 78    
Maximum Humidity 96    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.08 in 1.39 in (1937)
Month to date precipitation 0.61  
Year to date precipitation 0.61  
Snow  
Snow 0.00 in 0.20 in 5.90 in (1940)
Month to date snowfall 1.3  
Since 1 July snowfall 6.4  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.30 in    
Wind  
Wind Speed 4 mph (SE)    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 07, 2013 Rise Set
Actual Time 7:20 AM CST 4:55 PM CST
Civil Twilight 6:51 AM CST 5:25 PM CST
Nautical Twilight 6:17 AM CST 5:58 PM CST
Astronomical Twilight 5:45 AM CST 6:31 PM CST
Moon 2:45 AM CST (1/7) 1:06 PM CST (1/7)
Length of Visible Light 10h 34m
Length of Day
9h 35m
Waning Crescent, 22% of the Moon is Illuminated
Jan 7
Waning Crescent
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
Feb 3
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 21.9 °F - 18.0 °F 85% 30.40 in 7.0 mi Calm Calm - N/A   Clear
1:54 AM 21.9 °F - 19.0 °F 89% 30.41 in 6.0 mi Calm Calm - N/A   Clear
2:54 AM 21.9 °F - 19.0 °F 89% 30.41 in 5.0 mi Calm Calm - N/A   Clear
3:54 AM 21.0 °F - 19.0 °F 92% 30.41 in 4.0 mi Calm Calm - N/A   Clear
4:54 AM 19.0 °F 13.9 °F 18.0 °F 96% 30.40 in 6.0 mi ENE 3.5 mph - N/A   Clear
5:54 AM 19.9 °F 12.1 °F 17.1 °F 89% 30.38 in 7.0 mi East 5.8 mph - N/A   Clear
6:54 AM 19.9 °F 12.1 °F 18.0 °F 92% 30.40 in 6.0 mi East 5.8 mph - N/A   Clear
7:54 AM 21.9 °F 14.5 °F 19.0 °F 89% 30.40 in 4.0 mi East 5.8 mph - N/A   Clear
8:54 AM 28.0 °F 22.8 °F 23.0 °F 81% 30.40 in 5.0 mi ESE 4.6 mph - N/A   Haze
9:54 AM 34.0 °F 26.6 °F 25.0 °F 70% 30.39 in 7.0 mi South 9.2 mph - N/A   Clear
10:54 AM 37.9 °F 30.9 °F 25.0 °F 60% 30.37 in 9.0 mi South 10.4 mph - N/A   Clear
11:54 AM 39.9 °F 33.4 °F 25.0 °F 55% 30.32 in 10.0 mi South 10.4 mph - N/A   Clear
1:54 PM 44.1 °F 39.5 °F 27.0 °F 51% 30.25 in 10.0 mi South 8.1 mph - N/A   Clear
2:54 PM 45.0 °F 39.7 °F 27.0 °F 49% 30.23 in 10.0 mi SSE 10.4 mph - N/A   Clear
3:54 PM 42.1 °F 35.7 °F 28.0 °F 58% 30.22 in 10.0 mi SSE 11.5 mph - N/A   Clear
5:54 PM 35.1 °F 28.6 °F 28.0 °F 76% 30.21 in 8.0 mi SE 8.1 mph - N/A   Clear
6:54 PM 33.1 °F 26.9 °F 27.0 °F 78% 30.19 in 7.0 mi SE 6.9 mph - N/A   Clear
7:54 PM 32.0 °F 25.6 °F 27.0 °F 82% 30.19 in 7.0 mi ESE 6.9 mph - N/A   Clear
8:54 PM 30.9 °F 24.3 °F 27.0 °F 85% 30.19 in 7.0 mi ESE 6.9 mph - N/A   Clear
9:54 PM 30.9 °F 23.5 °F 26.1 °F 82% 30.18 in 9.0 mi SE 8.1 mph - N/A   Clear
10:54 PM 30.9 °F 26.2 °F 26.1 °F 82% 30.17 in 9.0 mi SE 4.6 mph - N/A   Clear
11:54 PM 28.9 °F 21.9 °F 25.0 °F 85% 30.17 in 7.0 mi ENE 6.9 mph - N/A   Clear