Weather History for St. Charles, MO

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Tuesday, September 17, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 64 °F 70 °F  
Max Temperature 71 °F 80 °F 97 °F (1931)
Min Temperature 57 °F 60 °F 37 °F (1937)
Degree Days  
Heating Degree Days 1 1  
Month to date heating degree days 6  
Since 1 July heating degree days 7  
Cooling Degree Days 0 6  
Month to date cooling degree days 147  
Year to date cooling degree days 1546  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 82    
Maximum Humidity 93    
Minimum Humidity 68    
Precipitation  
Precipitation 0.03 in 0.10 in 2.25 in (1968)
Month to date precipitation 1.75  
Year to date precipitation 29.50  
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 30.17 in    
Wind  
Wind Speed 5 mph (ESE)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 17, 2013 Rise Set
Actual Time 6:45 AM CDT 7:06 PM CDT
Civil Twilight 6:18 AM CDT 7:33 PM CDT
Nautical Twilight 5:47 AM CDT 8:04 PM CDT
Astronomical Twilight 5:15 AM CDT 8:36 PM CDT
Moon 5:53 PM CDT (9/17) 4:40 AM CDT (9/17)
Length of Visible Light 13h 14m
Length of Day
12h 21m
Waxing Gibbous, 96% of the Moon is Illuminated
Sep 17
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 57.9 °F 54.0 °F 87% 30.24 in 10.0 mi East 4.6 mph - N/A   Clear
1:54 AM 59.0 °F 54.0 °F 83% 30.24 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
2:54 AM 57.9 °F 54.0 °F 87% 30.24 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
3:54 AM 57.9 °F 55.0 °F 90% 30.23 in 10.0 mi East 3.5 mph - N/A   Clear
4:54 AM 57.9 °F 54.0 °F 87% 30.22 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
5:54 AM 59.0 °F 54.0 °F 83% 30.22 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
6:54 AM 59.0 °F 54.0 °F 83% 30.23 in 10.0 mi ESE 4.6 mph - N/A   Overcast
7:54 AM 60.1 °F 54.0 °F 80% 30.23 in 10.0 mi ESE 6.9 mph - N/A   Overcast
8:54 AM 60.1 °F 55.0 °F 83% 30.23 in 10.0 mi ESE 5.8 mph - N/A   Overcast
9:54 AM 62.1 °F 55.0 °F 78% 30.22 in 10.0 mi East 8.1 mph - 0.00 in   Overcast
10:54 AM 64.0 °F 55.9 °F 75% 30.22 in 10.0 mi SE 6.9 mph - N/A   Overcast
11:54 AM 66.0 °F 57.0 °F 73% 30.21 in 10.0 mi ESE 5.8 mph - N/A   Overcast
12:54 PM 69.1 °F 59.0 °F 70% 30.19 in 10.0 mi ESE 9.2 mph - N/A   Overcast
1:54 PM 70.0 °F 59.0 °F 68% 30.17 in 10.0 mi ESE 4.6 mph - N/A   Overcast
2:54 PM 70.0 °F 60.1 °F 71% 30.15 in 10.0 mi ESE 5.8 mph - N/A   Overcast
3:54 PM 71.1 °F 60.1 °F 68% 30.13 in 10.0 mi ESE 8.1 mph - N/A   Overcast
4:54 PM 71.1 °F 60.1 °F 68% 30.12 in 10.0 mi ESE 6.9 mph - N/A   Overcast
5:54 PM 68.0 °F 64.0 °F 87% 30.10 in 6.0 mi ESE 4.6 mph - 0.01 in Rain Light Rain
6:54 PM 66.9 °F 64.9 °F 93% 30.09 in 5.0 mi NNE 3.5 mph - 0.02 in Rain Light Rain
7:54 PM 66.9 °F 64.9 °F 93% 30.08 in 5.0 mi Calm Calm - 0.00 in   Clear
8:54 PM 64.9 °F 62.1 °F 90% 30.06 in 7.0 mi East 6.9 mph - N/A   Clear
9:54 PM 66.0 °F 62.1 °F 87% 30.08 in 8.0 mi ESE 3.5 mph - N/A   Clear
10:54 PM 64.9 °F 62.1 °F 90% 30.08 in 7.0 mi Calm Calm - N/A   Clear
11:54 PM 64.9 °F 62.1 °F 90% 30.07 in 7.0 mi Calm Calm - N/A   Partly Cloudy