Weather History for St. Charles, MO

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Wednesday, May 1, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 70 °F 62 °F  
Max Temperature 82 °F 72 °F 90 °F (1936)
Min Temperature 57 °F 53 °F 34 °F (1963)
Degree Days  
Heating Degree Days 0 5  
Month to date heating degree days 5  
Since 1 July heating degree days 4461  
Cooling Degree Days 4 2  
Month to date cooling degree days 2  
Year to date cooling degree days 48  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 65    
Maximum Humidity 93    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.13 in 1.43 in (1983)
Month to date precipitation 0.13  
Year to date precipitation 11.78  
Snow  
Snow 0.00 in 0.00 in T in (1909)
Month to date snowfall 0.0  
Since 1 July snowfall 17.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 4 mph (ESE)    
Max Wind Speed 10 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 01, 2013 Rise Set
Actual Time 6:03 AM CDT 7:54 PM CDT
Civil Twilight 5:34 AM CDT 8:23 PM CDT
Nautical Twilight 4:59 AM CDT 8:58 PM CDT
Astronomical Twilight 4:22 AM CDT 9:36 PM CDT
Moon 1:04 AM CDT (5/1) 11:42 AM CDT (5/1)
Length of Visible Light 14h 48m
Length of Day
13h 51m
Waning Gibbous, 59% of the Moon is Illuminated
May 1
Waning Gibbous
May 2
Last Quarter
May 9
New
May 17
First Quarter
May 24
Full

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 63.0 °F - 57.0 °F 81% 29.95 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 60.1 °F - 55.9 °F 86% 29.95 in 10.0 mi East 4.6 mph - N/A   Clear
3:54 AM 59.0 °F - 57.0 °F 93% 29.97 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 57.9 °F - 55.0 °F 90% 30.00 in 10.0 mi East 4.6 mph - N/A   Clear
6:54 AM 57.0 °F - 55.0 °F 93% 30.02 in 8.0 mi ENE 5.8 mph - N/A   Clear
7:54 AM 64.0 °F - 57.0 °F 78% 30.04 in 10.0 mi East 4.6 mph - N/A   Clear
8:54 AM 68.0 °F - 57.9 °F 70% 30.04 in 10.0 mi East 3.5 mph - N/A   Clear
9:54 AM 73.9 °F - 59.0 °F 59% 30.05 in 10.0 mi ENE 3.5 mph - N/A   Clear
10:54 AM 78.1 °F - 53.1 °F 42% 30.05 in 10.0 mi SE 4.6 mph - N/A   Clear
11:54 AM 79.0 °F - 52.0 °F 39% 30.05 in 10.0 mi East 3.5 mph - N/A   Clear
12:54 PM 80.1 °F 79.9 °F 53.1 °F 39% 30.04 in 10.0 mi South 9.2 mph - N/A   Clear
1:54 PM 81.0 °F - 52.0 °F 36% 30.04 in 10.0 mi East 8.1 mph - N/A   Clear
2:54 PM 82.0 °F 81.6 °F 55.9 °F 41% 30.03 in 10.0 mi South 9.2 mph 18.4 mph N/A   Partly Cloudy
4:54 PM 81.0 °F 81.0 °F 57.0 °F 44% 30.02 in 10.0 mi SE 10.4 mph - N/A   Clear
6:54 PM 79.0 °F - 57.9 °F 48% 30.02 in 10.0 mi ESE 10.4 mph - N/A   Partly Cloudy
7:54 PM 75.0 °F - 59.0 °F 57% 30.03 in 10.0 mi SE 9.2 mph - N/A   Clear
8:54 PM 71.1 °F - 60.1 °F 68% 30.05 in 10.0 mi East 5.8 mph - N/A   Clear
9:54 PM 68.0 °F - 60.1 °F 76% 30.07 in 10.0 mi East 5.8 mph - N/A   Clear
10:54 PM 66.9 °F - 60.1 °F 79% 30.06 in 10.0 mi ESE 6.9 mph - N/A   Clear
11:54 PM 66.0 °F - 61.0 °F 84% 30.07 in 10.0 mi Calm Calm - N/A   Clear