Weather History for St. Charles, MO

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Wednesday, September 25, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 72 °F 66 °F  
Max Temperature 82 °F 76 °F 92 °F (1900)
Min Temperature 62 °F 56 °F 39 °F (1942)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 22  
Since 1 July heating degree days 23  
Cooling Degree Days 6 4  
Month to date cooling degree days 186  
Year to date cooling degree days 1585  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 85    
Maximum Humidity 100    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in 0.11 in 1.36 in (1886)
Month to date precipitation 2.60  
Year to date precipitation 30.35  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2013)
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Since 1 September snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 4 mph (ENE)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 25, 2013 Rise Set
Actual Time 6:52 AM CDT 6:53 PM CDT
Civil Twilight 6:25 AM CDT 7:20 PM CDT
Nautical Twilight 5:54 AM CDT 7:51 PM CDT
Astronomical Twilight 5:23 AM CDT 8:22 PM CDT
Moon 11:02 PM CDT (9/25) 12:55 PM CDT (9/25)
Length of Visible Light 12h 54m
Length of Day
12h 01m
Waning Gibbous, 64% of the Moon is Illuminated
Sep 25
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
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 66.0 °F - 64.0 °F 93% 29.80 in 10.0 mi ENE 5.8 mph - N/A   Clear
1:24 AM 66.2 °F - 64.4 °F 94% 29.80 in 9.0 mi ESE 6.9 mph - N/A   Mostly Cloudy
1:40 AM 64.4 °F - 64.4 °F 100% 29.80 in 8.0 mi East 8.1 mph - N/A   Scattered Clouds
1:54 AM 64.9 °F - 63.0 °F 93% 29.79 in 8.0 mi East 8.1 mph - N/A   Clear
2:54 AM 63.0 °F - 62.1 °F 97% 29.79 in 6.0 mi East 6.9 mph - N/A   Clear
3:54 AM 62.1 °F - 61.0 °F 96% 29.79 in 5.0 mi Calm Calm - N/A   Clear
4:43 AM 62.6 °F - 62.6 °F 100% 29.81 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
4:54 AM 64.0 °F - 62.1 °F 93% 29.80 in 5.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
5:18 AM 64.4 °F - 62.6 °F 94% 29.82 in 6.0 mi ENE 4.6 mph - N/A   Overcast
5:54 AM 64.9 °F - 64.0 °F 97% 29.82 in 5.0 mi ENE 4.6 mph - N/A   Overcast
6:22 AM 64.4 °F - 64.4 °F 100% 29.84 in 3.0 mi East 3.5 mph - N/A   Overcast
6:54 AM 64.9 °F - 63.0 °F 93% 29.83 in 5.0 mi NE 5.8 mph - N/A   Overcast
7:01 AM 64.4 °F - 62.6 °F 94% 29.85 in 6.0 mi NE 4.6 mph - N/A   Overcast
7:54 AM 64.9 °F - 64.0 °F 97% 29.85 in 5.0 mi ESE 3.5 mph - N/A   Overcast
8:15 AM 66.2 °F - 64.4 °F 94% 29.85 in 5.0 mi ENE 3.5 mph - N/A   Overcast
8:50 AM 68.0 °F - 64.4 °F 88% 29.86 in 7.0 mi NE 3.5 mph - N/A   Overcast
8:54 AM 68.0 °F - 64.9 °F 90% 29.85 in 7.0 mi Calm Calm - N/A   Overcast
9:05 AM 69.8 °F - 64.4 °F 83% 29.86 in 8.0 mi Calm Calm - N/A   Overcast
9:54 AM 71.1 °F - 64.9 °F 81% 29.86 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:08 AM 71.6 °F - 64.4 °F 78% 29.87 in 10.0 mi ENE 3.5 mph - N/A   Scattered Clouds
10:30 AM 71.6 °F - 64.4 °F 78% 29.87 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
10:54 AM 73.9 °F - 64.9 °F 73% 29.86 in 10.0 mi NE 4.6 mph - N/A   Overcast
11:54 AM 77.0 °F - 64.9 °F 66% 29.86 in 10.0 mi NE 6.9 mph - N/A   Mostly Cloudy
12:12 PM 77.0 °F - 64.4 °F 65% 29.87 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
12:54 PM 80.1 °F 82.1 °F 66.0 °F 62% 29.85 in 10.0 mi NE 9.2 mph - N/A   Mostly Cloudy
1:54 PM 81.0 °F 82.2 °F 63.0 °F 54% 29.83 in 10.0 mi NE 8.1 mph - N/A   Scattered Clouds
2:54 PM 81.0 °F 81.9 °F 62.1 °F 52% 29.83 in 10.0 mi NE 8.1 mph - N/A   Partly Cloudy
3:54 PM 81.0 °F 82.2 °F 63.0 °F 54% 29.82 in 10.0 mi NE 8.1 mph - N/A   Partly Cloudy
4:54 PM 81.0 °F 81.7 °F 61.0 °F 50% 29.82 in 10.0 mi ENE 6.9 mph - N/A   Partly Cloudy
5:54 PM 80.1 °F 81.7 °F 64.0 °F 58% 29.83 in 10.0 mi NNE 3.5 mph - N/A   Clear
6:54 PM 71.1 °F - 66.9 °F 87% 29.83 in 9.0 mi NNE 3.5 mph - N/A   Clear
7:54 PM 70.0 °F - 66.0 °F 87% 29.84 in 9.0 mi Calm Calm - N/A   Clear
8:54 PM 66.0 °F - 64.9 °F 96% 29.85 in 5.0 mi Calm Calm - N/A   Clear
9:54 PM 66.9 °F - 64.9 °F 93% 29.86 in 6.0 mi Calm Calm - N/A   Clear
10:39 PM 64.4 °F - 62.6 °F 94% 29.87 in 1.5 mi Calm Calm - N/A   Clear
10:51 PM 64.4 °F - 62.6 °F 94% 29.87 in 3.0 mi Calm Calm - N/A   Clear
10:54 PM 64.9 °F - 62.1 °F 90% 29.86 in 4.0 mi Calm Calm - N/A   Clear
11:20 PM 64.4 °F - 62.6 °F 94% 29.88 in 1.2 mi Calm Calm - N/A   Clear
11:30 PM 64.4 °F - 62.6 °F 94% 29.87 in 8.0 mi Calm Calm - N/A   Clear
11:54 PM 63.0 °F - 62.1 °F 97% 29.86 in 4.0 mi Calm Calm - N/A   Clear