Weather History for St. Charles, MO

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Friday, September 20, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 66 °F 69 °F  
Max Temperature 72 °F 78 °F 96 °F (1940)
Min Temperature 59 °F 59 °F 40 °F (1875)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 11  
Since 1 July heating degree days 12  
Cooling Degree Days 1 5  
Month to date cooling degree days 164  
Year to date cooling degree days 1563  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 88    
Maximum Humidity 96    
Minimum Humidity 73    
Precipitation  
Precipitation 1.06 in 0.11 in 1.40 in (1876)
Month to date precipitation 2.06  
Year to date precipitation 29.81  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2012)
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 29.90 in    
Wind  
Wind Speed 5 mph (WNW)    
Max Wind Speed 13 mph    
Max Gust Speed 20 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 20, 2013 Rise Set
Actual Time 6:47 AM CDT 7:01 PM CDT
Civil Twilight 6:21 AM CDT 7:28 PM CDT
Nautical Twilight 5:49 AM CDT 7:59 PM CDT
Astronomical Twilight 5:18 AM CDT 8:31 PM CDT
Moon 7:36 PM CDT (9/20) 8:01 AM CDT (9/20)
Length of Visible Light 13h 06m
Length of Day
12h 13m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 71.6 °F 66.2 °F 83% 29.92 in 1.8 mi NW 4.6 mph - 0.23 in Rain Rain
12:54 AM 71.1 °F 66.9 °F 87% 29.90 in 1.8 mi NW 4.6 mph - 0.24 in Rain Heavy Rain
1:09 AM 69.8 °F 68.0 °F 94% 29.93 in 2.5 mi Calm Calm - 0.16 in Rain Heavy Rain
1:21 AM 69.8 °F 68.0 °F 94% 29.91 in 4.0 mi East 6.9 mph - 0.20 in Rain Rain
1:54 AM 69.1 °F 68.0 °F 96% 29.89 in 9.0 mi ESE 5.8 mph - 0.21 in Rain Light Rain
2:54 AM 69.1 °F 68.0 °F 96% 29.88 in 10.0 mi SW 4.6 mph - 0.01 in   Overcast
3:04 AM 69.8 °F 66.2 °F 88% 29.92 in 1.8 mi West 8.1 mph 19.6 mph 0.13 in Rain Heavy Rain
3:32 AM 69.8 °F 66.2 °F 88% 29.90 in 2.5 mi Calm Calm - 0.38 in Rain Rain
3:39 AM 69.8 °F 66.2 °F 88% 29.89 in 4.0 mi Calm Calm - 0.40 in Rain Rain
3:54 AM 68.0 °F 66.9 °F 96% 29.88 in 7.0 mi South 3.5 mph - 0.42 in Rain Light Rain
4:54 AM 69.1 °F 68.0 °F 96% 29.89 in 10.0 mi WSW 5.8 mph - 0.01 in Rain Light Rain
5:54 AM 69.1 °F 66.9 °F 93% 29.88 in 9.0 mi NW 3.5 mph - 0.03 in Rain Light Rain
6:37 AM 68.0 °F 66.2 °F 94% 29.91 in 10.0 mi SSW 3.5 mph - 0.00 in Rain Light Rain
6:54 AM 68.0 °F 66.9 °F 96% 29.90 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
7:54 AM 69.1 °F 66.9 °F 93% 29.91 in 10.0 mi West 3.5 mph - 0.00 in   Partly Cloudy
8:14 AM 69.8 °F 66.2 °F 88% 29.92 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
8:52 AM 69.8 °F 68.0 °F 94% 29.93 in 10.0 mi SSW 5.8 mph - N/A   Overcast
8:54 AM 69.1 °F 68.0 °F 96% 29.91 in 10.0 mi SW 4.6 mph - N/A   Overcast
9:54 AM 70.0 °F 68.0 °F 93% 29.92 in 10.0 mi WSW 4.6 mph - N/A   Overcast
10:50 AM 71.6 °F 66.2 °F 83% 29.92 in 10.0 mi WSW 6.9 mph - N/A   Overcast
10:54 AM 71.1 °F 66.9 °F 87% 29.91 in 10.0 mi WSW 5.8 mph - N/A   Overcast
11:04 AM 71.6 °F 68.0 °F 88% 29.92 in 10.0 mi WSW 5.8 mph - N/A   Overcast
11:39 AM 71.6 °F 66.2 °F 83% 29.92 in 4.0 mi WNW 9.2 mph - 0.01 in Rain Light Rain
11:43 AM 69.8 °F 68.0 °F 94% 29.92 in 2.5 mi West 8.1 mph - 0.01 in Rain Light Rain
11:54 AM 70.0 °F 68.0 °F 93% 29.91 in 2.5 mi West 5.8 mph - 0.01 in Rain Light Rain
12:01 PM 69.8 °F 68.0 °F 94% 29.92 in 6.0 mi WSW 5.8 mph - 0.00 in Rain Light Rain
12:11 PM 69.8 °F 68.0 °F 94% 29.92 in 10.0 mi West 6.9 mph - 0.00 in   Overcast
12:44 PM 71.6 °F 68.0 °F 88% 29.91 in 10.0 mi NW 4.6 mph - 0.00 in   Overcast
12:54 PM 71.1 °F 68.0 °F 90% 29.90 in 10.0 mi WNW 5.8 mph - 0.00 in   Overcast
1:09 PM 71.6 °F 68.0 °F 88% 29.90 in 10.0 mi West 5.8 mph - N/A   Overcast
1:19 PM 71.6 °F 66.2 °F 83% 29.90 in 10.0 mi West 6.9 mph - N/A   Overcast
1:25 PM 71.6 °F 66.2 °F 83% 29.91 in 5.0 mi West 10.4 mph - 0.01 in Rain Light Rain
1:27 PM 71.6 °F 68.0 °F 88% 29.91 in 1.8 mi West 8.1 mph - 0.06 in Rain Rain
1:32 PM 69.8 °F 68.0 °F 94% 29.91 in 0.8 mi West 6.9 mph - 0.10 in Rain Heavy Rain
1:37 PM 69.8 °F 68.0 °F 94% 29.91 in 1.0 mi NW 12.7 mph - 0.12 in Rain Rain
1:48 PM 69.8 °F 66.2 °F 88% 29.90 in 3.0 mi NW 11.5 mph - 0.13 in Rain Light Rain
1:54 PM 69.1 °F 66.9 °F 93% 29.89 in 9.0 mi NNW 11.5 mph - 0.13 in Rain Light Rain
2:46 PM 69.8 °F 66.2 °F 88% 29.89 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
2:54 PM 70.0 °F 64.9 °F 84% 29.88 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
3:10 PM 71.6 °F 64.4 °F 78% 29.89 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
3:54 PM 71.1 °F 62.1 °F 73% 29.88 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
4:54 PM 69.1 °F 61.0 °F 75% 29.86 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
5:54 PM 68.0 °F 61.0 °F 78% 29.88 in 10.0 mi NW 4.6 mph - N/A   Clear
6:54 PM 66.0 °F 61.0 °F 84% 29.88 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:54 PM 64.9 °F 59.0 °F 81% 29.88 in 10.0 mi Calm Calm - N/A   Clear
8:54 PM 64.9 °F 55.9 °F 73% 29.90 in 10.0 mi NNW 8.1 mph - N/A   Clear
9:54 PM 62.1 °F 54.0 °F 75% 29.91 in 10.0 mi North 5.8 mph - N/A   Clear
10:54 PM 61.0 °F 53.1 °F 75% 29.91 in 10.0 mi NW 6.9 mph - N/A   Clear
11:54 PM 59.0 °F 52.0 °F 78% 29.91 in 10.0 mi NW 6.9 mph - N/A   Clear