Weather History for St. Charles, MO

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Saturday, March 31, 2012

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 60 °F 52 °F  
Max Temperature 75 °F 62 °F 87 °F (1981)
Min Temperature 46 °F 42 °F 17 °F (1923)
Degree Days  
Heating Degree Days 4 14  
Month to date heating degree days 587  
Since 1 July heating degree days 4186  
Cooling Degree Days 0 1  
Month to date cooling degree days 7  
Year to date cooling degree days 7  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 73    
Maximum Humidity 93    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in 0.13 in 2.98 in (1927)
Month to date precipitation 3.32  
Year to date precipitation 7.96  
Snow  
Snow 0.00 in 0.00 in 3.50 in (1911)
Month to date snowfall 2.3  
Since 1 July snowfall 17.3  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 9 mph (East)    
Max Wind Speed 16 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 31, 2012 Rise Set
Actual Time 6:47 AM CDT 7:24 PM CDT
Civil Twilight 6:20 AM CDT 7:51 PM CDT
Nautical Twilight 5:48 AM CDT 8:23 PM CDT
Astronomical Twilight 5:16 AM CDT 8:56 PM CDT
Moon 12:56 PM CDT (3/31) 2:40 AM CDT (3/31)
Length of Visible Light 13h 31m
Length of Day
12h 37m
First Quarter, 59% of the Moon is Illuminated
Mar 31
First Quarter
Apr 6
Full
Apr 13
Last Quarter
Apr 21
New
Apr 29
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 57.0 °F - 51.1 °F 81% 29.84 in 10.0 mi North 10.4 mph - N/A   Clear
1:54 AM 55.9 °F - 50.0 °F 80% 29.87 in 9.0 mi NNE 16.1 mph - N/A   Clear
2:54 AM 53.1 °F - 48.0 °F 83% 29.88 in 8.0 mi NNE 13.8 mph - N/A   Clear
3:54 AM 52.0 °F - 46.9 °F 83% 29.86 in 6.0 mi ENE 8.1 mph - N/A   Haze
4:54 AM 52.0 °F - 46.9 °F 83% 29.87 in 6.0 mi ENE 9.2 mph - N/A   Haze
5:54 AM 50.0 °F - 46.0 °F 86% 29.87 in 5.0 mi ENE 4.6 mph - N/A   Clear
6:54 AM 48.0 °F - 44.1 °F 86% 29.88 in 3.0 mi East 6.9 mph - N/A   Clear
7:22 AM 46.4 °F 44.3 °F 44.6 °F 93% 29.91 in 2.5 mi NE 4.6 mph - N/A   Clear
7:34 AM 48.2 °F - 44.6 °F 87% 29.91 in 3.0 mi NE 5.8 mph - N/A   Clear
7:54 AM 50.0 °F - 46.0 °F 86% 29.91 in 3.0 mi NE 6.9 mph - N/A   Clear
8:54 AM 52.0 °F - 46.0 °F 80% 29.91 in 3.0 mi ENE 4.6 mph - N/A   Haze
9:54 AM 55.9 °F - 48.0 °F 75% 29.92 in 4.0 mi NE 6.9 mph - N/A   Haze
10:54 AM 57.9 °F - 48.0 °F 70% 29.91 in 5.0 mi ESE 6.9 mph - N/A   Haze
11:54 AM 63.0 °F - 50.0 °F 63% 29.90 in 6.0 mi Variable 6.9 mph - N/A   Haze
12:54 PM 66.0 °F - 51.1 °F 59% 29.88 in 7.0 mi Variable 4.6 mph - N/A   Clear
1:54 PM 70.0 °F - 53.1 °F 55% 29.85 in 8.0 mi SE 6.9 mph - N/A   Clear
2:54 PM 72.0 °F - 54.0 °F 53% 29.83 in 10.0 mi SSE 8.1 mph - N/A   Clear
3:54 PM 73.9 °F - 55.0 °F 52% 29.80 in 10.0 mi South 8.1 mph - N/A   Clear
4:54 PM 75.0 °F - 55.0 °F 50% 29.79 in 9.0 mi SSE 6.9 mph - N/A   Clear
5:54 PM 75.0 °F - 55.9 °F 51% 29.78 in 9.0 mi SE 8.1 mph - N/A   Clear
6:54 PM 73.9 °F - 55.9 °F 53% 29.78 in 10.0 mi ESE 11.5 mph - N/A   Clear
7:54 PM 69.1 °F - 55.9 °F 63% 29.78 in 10.0 mi ESE 6.9 mph - N/A   Clear
9:54 PM 62.1 °F - 55.0 °F 78% 29.78 in 9.0 mi East 5.8 mph - N/A   Clear
10:54 PM 61.0 °F - 55.0 °F 81% 29.78 in 8.0 mi East 6.9 mph - N/A   Clear
11:54 PM 60.1 °F - 55.0 °F 83% 29.76 in 8.0 mi East 6.9 mph - N/A   Clear