Weather History for St. Charles, MO

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Friday, April 19, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 44 °F 59 °F  
Max Temperature 50 °F 69 °F 88 °F (1948)
Min Temperature 37 °F 49 °F 26 °F (1983)
Degree Days  
Heating Degree Days 22 8  
Month to date heating degree days 202  
Since 1 July heating degree days 4388  
Cooling Degree Days 0 2  
Month to date cooling degree days 20  
Year to date cooling degree days 27  
Moisture  
Dew Point 27 °F    
Average Humidity 55    
Maximum Humidity 73    
Minimum Humidity 39    
Precipitation  
Precipitation 0.00 in 0.12 in 1.83 in (1874)
Month to date precipitation 2.28  
Year to date precipitation 10.24  
Snow  
Snow 0.00 in 0.00 in T in (2013)
Month to date snowfall 0.3  
Since 1 July snowfall 17.6  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 20 mph (West)    
Max Wind Speed 28 mph    
Max Gust Speed 38 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 19, 2013 Rise Set
Actual Time 6:19 AM CDT 7:42 PM CDT
Civil Twilight 5:51 AM CDT 8:10 PM CDT
Nautical Twilight 5:17 AM CDT 8:44 PM CDT
Astronomical Twilight 4:42 AM CDT 9:19 PM CDT
Moon 1:30 PM CDT (4/19) 2:31 AM CDT (4/19)
Length of Visible Light 14h 19m
Length of Day
13h 23m
First Quarter, 62% of the Moon is Illuminated
Apr 19
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New
May 17
First Quarter

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 41.0 °F 31.4 °F 30.0 °F 65% 29.76 in 10.0 mi WNW 21.9 mph 32.2 mph N/A   Overcast
1:54 AM 41.0 °F 32.2 °F 30.0 °F 65% 29.76 in 10.0 mi WNW 18.4 mph 26.5 mph N/A   Overcast
2:54 AM 39.9 °F 29.5 °F 28.0 °F 63% 29.76 in 10.0 mi WNW 24.2 mph 33.4 mph N/A   Overcast
3:54 AM 39.9 °F 30.8 °F 28.0 °F 63% 29.77 in 10.0 mi West 18.4 mph 28.8 mph N/A   Overcast
4:54 AM 39.0 °F 29.9 °F 28.9 °F 67% 29.78 in 10.0 mi West 17.3 mph - N/A   Overcast
5:54 AM 39.0 °F 27.8 °F 27.0 °F 62% 29.79 in 10.0 mi West 26.5 mph 32.2 mph N/A   Overcast
6:54 AM 39.0 °F 29.0 °F 27.0 °F 62% 29.82 in 10.0 mi West 20.7 mph 31.1 mph N/A   Overcast
7:54 AM 37.9 °F 27.3 °F 26.1 °F 62% 29.85 in 10.0 mi West 21.9 mph 28.8 mph 0.00 in   Overcast
8:54 AM 37.9 °F 27.1 °F 26.1 °F 62% 29.86 in 10.0 mi West 23.0 mph 31.1 mph N/A   Overcast
9:54 AM 39.0 °F 29.9 °F 27.0 °F 62% 29.86 in 10.0 mi West 17.3 mph 28.8 mph N/A   Overcast
10:54 AM 39.9 °F 31.8 °F 28.0 °F 63% 29.87 in 10.0 mi West 15.0 mph 27.6 mph N/A   Overcast
11:54 AM 43.0 °F 33.8 °F 27.0 °F 53% 29.88 in 10.0 mi West 23.0 mph 31.1 mph N/A   Overcast
12:54 PM 45.0 °F 36.0 °F 28.0 °F 52% 29.88 in 10.0 mi West 25.3 mph 29.9 mph N/A   Overcast
1:54 PM 46.9 °F - 27.0 °F 46% 29.88 in 10.0 mi WNW 19.6 mph 29.9 mph N/A   Overcast
2:54 PM 48.9 °F - 27.0 °F 43% 29.88 in 10.0 mi West 20.7 mph 31.1 mph N/A   Mostly Cloudy
3:54 PM 48.9 °F - 26.1 °F 41% 29.89 in 10.0 mi West 27.6 mph 35.7 mph N/A   Overcast
4:54 PM 50.0 °F - 26.1 °F 39% 29.92 in 10.0 mi West 23.0 mph 33.4 mph N/A   Overcast
5:54 PM 50.0 °F - 26.1 °F 39% 29.95 in 10.0 mi WNW 21.9 mph 38.0 mph N/A   Overcast
6:54 PM 48.0 °F - 24.1 °F 39% 29.96 in 10.0 mi West 21.9 mph 32.2 mph N/A   Overcast
7:54 PM 46.9 °F - 27.0 °F 46% 30.00 in 10.0 mi WNW 13.8 mph - N/A   Partly Cloudy
8:54 PM 46.0 °F 41.4 °F 26.1 °F 46% 30.02 in 10.0 mi West 9.2 mph - N/A   Clear
9:54 PM 44.1 °F 39.5 °F 27.0 °F 51% 30.04 in 10.0 mi West 8.1 mph - N/A   Clear
10:54 PM 42.1 °F 38.4 °F 28.0 °F 58% 30.05 in 10.0 mi West 5.8 mph - N/A   Clear
11:54 PM 37.0 °F 34.5 °F 28.9 °F 73% 30.07 in 10.0 mi WSW 3.5 mph - N/A   Clear