Weather History for St. Charles, MO

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Wednesday, May 2, 2012

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 76 °F 63 °F  
Max Temperature 89 °F 73 °F 91 °F (1959)
Min Temperature 64 °F 53 °F 32 °F (1961)
Degree Days  
Heating Degree Days 0 4  
Month to date heating degree days 9  
Since 1 July heating degree days 4465  
Cooling Degree Days 11 2  
Month to date cooling degree days 4  
Year to date cooling degree days 50  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 62    
Maximum Humidity 90    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in 0.14 in 2.96 in (1929)
Month to date precipitation 0.27  
Year to date precipitation 11.92  
Snow  
Snow 0.00 in 0.00 in 4.00 in (1929)
Month to date snowfall 0.0  
Since 1 July snowfall 17.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 9 mph (South)    
Max Wind Speed 21 mph    
Max Gust Speed 29 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 02, 2012 Rise Set
Actual Time 6:02 AM CDT 7:55 PM CDT
Civil Twilight 5:33 AM CDT 8:24 PM CDT
Nautical Twilight 4:58 AM CDT 9:00 PM CDT
Astronomical Twilight 4:20 AM CDT 9:37 PM CDT
Moon 4:10 PM CDT (5/2) 3:29 AM CDT (5/2)
Length of Visible Light 14h 51m
Length of Day
13h 53m
Waxing Gibbous, 83% of the Moon is Illuminated
May 2
Waxing Gibbous
May 5
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 73.0 °F - 64.0 °F 73% 29.79 in 10.0 mi SSW 6.9 mph - N/A   Clear
1:54 AM 71.1 °F - 63.0 °F 75% 29.79 in 10.0 mi South 4.6 mph - N/A   Clear
2:54 AM 69.1 °F - 63.0 °F 81% 29.78 in 10.0 mi South 5.8 mph - N/A   Clear
3:54 AM 70.0 °F - 62.1 °F 76% 29.80 in 10.0 mi South 5.8 mph - N/A   Clear
4:54 AM 64.0 °F - 61.0 °F 90% 29.83 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 64.0 °F - 61.0 °F 90% 29.85 in 10.0 mi SE 5.8 mph - N/A   Clear
6:54 AM 69.1 °F - 63.0 °F 81% 29.86 in 10.0 mi SSE 6.9 mph - N/A   Clear
7:54 AM 73.9 °F - 64.0 °F 71% 29.87 in 10.0 mi South 9.2 mph - N/A   Clear
8:54 AM 77.0 °F - 64.9 °F 66% 29.88 in 10.0 mi SSW 13.8 mph - N/A   Clear
9:54 AM 81.0 °F 83.0 °F 66.0 °F 60% 29.89 in 10.0 mi SW 18.4 mph 25.3 mph N/A   Clear
10:54 AM 82.0 °F 83.8 °F 64.9 °F 56% 29.90 in 10.0 mi SSW 20.7 mph 28.8 mph N/A   Overcast
11:54 AM 82.9 °F 83.7 °F 62.1 °F 49% 29.92 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Mostly Cloudy
12:54 PM 86.0 °F 86.3 °F 62.1 °F 44% 29.91 in 10.0 mi SSW 17.3 mph 21.9 mph N/A   Partly Cloudy
1:54 PM 87.1 °F 87.0 °F 61.0 °F 41% 29.88 in 10.0 mi SSW 13.8 mph - N/A   Partly Cloudy
2:54 PM 88.0 °F 88.7 °F 63.0 °F 43% 29.86 in 10.0 mi South 11.5 mph - N/A   Clear
3:54 PM 88.0 °F 88.7 °F 63.0 °F 43% 29.84 in 10.0 mi South 12.7 mph 19.6 mph N/A   Clear
4:54 PM 87.1 °F 88.3 °F 64.0 °F 46% 29.83 in 10.0 mi South 13.8 mph 23.0 mph 0.00 in   Clear
5:54 PM 86.0 °F 87.3 °F 64.0 °F 48% 29.82 in 10.0 mi South 16.1 mph - N/A   Clear
6:54 PM 84.0 °F 84.9 °F 63.0 °F 49% 29.81 in 10.0 mi South 19.6 mph 27.6 mph N/A   Clear
7:54 PM 81.0 °F 82.5 °F 64.0 °F 56% 29.82 in 10.0 mi South 15.0 mph - N/A   Clear
8:54 PM 80.1 °F 81.5 °F 63.0 °F 56% 29.85 in 10.0 mi South 16.1 mph - N/A   Clear
9:54 PM 78.1 °F - 64.0 °F 62% 29.87 in 10.0 mi South 9.2 mph - N/A   Clear
10:54 PM 75.9 °F - 64.0 °F 67% 29.87 in 10.0 mi SSW 5.8 mph - N/A   Clear
11:54 PM 72.0 °F - 64.0 °F 76% 29.87 in 10.0 mi South 6.9 mph - N/A   Clear