Weather History for St. Charles, MO

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Sunday, December 9, 2012

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 42 °F 36 °F  
Max Temperature 48 °F 44 °F 74 °F (1918)
Min Temperature 35 °F 28 °F -5 °F (1876)
Degree Days  
Heating Degree Days 24 29  
Month to date heating degree days 245  
Since 1 July heating degree days 1071  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 1646  
Moisture  
Dew Point 41 °F    
Average Humidity 89    
Maximum Humidity 100    
Minimum Humidity 75    
Precipitation  
Precipitation 0.66 in 0.09 in 0.80 in (1999)
Month to date precipitation 0.91  
Year to date precipitation 39.03  
Snow  
Snow 0.00 in 0.10 in 2.00 in (1944)
Month to date snowfall 0.9  
Since 1 July snowfall 1.6  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 7 mph (NNE)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 5 miles    
Events Fog , Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 09, 2012 Rise Set
Actual Time 7:09 AM CST 4:39 PM CST
Civil Twilight 6:39 AM CST 5:09 PM CST
Nautical Twilight 6:05 AM CST 5:42 PM CST
Astronomical Twilight 5:33 AM CST 6:15 PM CST
Moon 2:43 AM CST (12/9) 1:45 PM CST (12/9)
Length of Visible Light 10h 30m
Length of Day
9h 30m
Waning Crescent, 18% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:07 AM 42.8 °F 38.0 °F 39.2 °F 87% 29.95 in 4.0 mi East 8.1 mph - 0.01 in Rain Light Rain
12:37 AM 42.8 °F 37.5 °F 39.2 °F 87% 29.93 in 4.0 mi East 9.2 mph - 0.02 in Rain Light Rain
12:54 AM 43.0 °F 37.7 °F 39.9 °F 89% 29.93 in 5.0 mi East 9.2 mph - 0.02 in   Overcast
1:40 AM 42.8 °F 39.3 °F 39.2 °F 87% 29.91 in 2.5 mi NE 5.8 mph - 0.05 in Rain , Thunderstorm Heavy Rain
1:50 AM 42.8 °F 38.6 °F 39.2 °F 87% 29.91 in 1.8 mi NE 6.9 mph - 0.12 in Rain , Thunderstorm Heavy Rain
1:54 AM 42.1 °F 38.4 °F 39.9 °F 92% 29.91 in 2.0 mi NNE 5.8 mph - 0.14 in Rain , Thunderstorm Rain
2:05 AM 42.8 °F 38.6 °F 39.2 °F 87% 29.90 in 2.0 mi East 6.9 mph - 0.07 in Rain , Thunderstorm Heavy Rain
2:12 AM 42.8 °F 37.0 °F 39.2 °F 87% 29.89 in 1.5 mi East 10.4 mph - 0.18 in Rain , Thunderstorm Heavy Rain
2:20 AM 42.8 °F 39.3 °F 41.0 °F 93% 29.91 in 2.0 mi North 5.8 mph - 0.21 in Rain Rain
2:51 AM 42.8 °F 37.0 °F 41.0 °F 93% 29.88 in 3.0 mi East 10.4 mph - 0.37 in Rain Light Rain
2:54 AM 43.0 °F 38.2 °F 41.0 °F 93% 29.88 in 4.0 mi East 8.1 mph - 0.37 in Rain Light Rain
3:02 AM 42.8 °F 37.0 °F 41.0 °F 93% 29.87 in 4.0 mi East 10.4 mph - 0.02 in Rain Rain
3:32 AM 44.6 °F - 42.8 °F 93% 29.88 in 8.0 mi Calm Calm - 0.06 in Rain Light Rain
3:54 AM 44.1 °F 40.1 °F 42.1 °F 93% 29.87 in 5.0 mi East 6.9 mph - 0.07 in Rain Light Rain
4:54 AM 44.1 °F - 42.1 °F 93% 29.86 in 6.0 mi Calm Calm - 0.03 in   Overcast
5:35 AM 44.6 °F 43.1 °F 42.8 °F 93% 29.84 in 2.5 mi East 3.5 mph - 0.02 in Rain Light Rain
5:39 AM 44.6 °F 42.2 °F 42.8 °F 93% 29.83 in 3.0 mi East 4.6 mph - 0.02 in Rain Light Rain
5:54 AM 44.1 °F 41.5 °F 43.0 °F 96% 29.84 in 4.0 mi ESE 4.6 mph - 0.03 in   Overcast
6:06 AM 44.6 °F 43.1 °F 42.8 °F 93% 29.84 in 5.0 mi ESE 3.5 mph - N/A   Overcast
6:54 AM 44.1 °F 41.5 °F 43.0 °F 96% 29.84 in 3.0 mi ESE 4.6 mph - N/A   Overcast
7:04 AM 44.6 °F 42.2 °F 42.8 °F 93% 29.84 in 2.5 mi East 4.6 mph - N/A   Overcast
7:39 AM 44.6 °F 42.2 °F 42.8 °F 93% 29.84 in 0.5 mi East 4.6 mph - N/A Fog Fog
7:54 AM 44.1 °F 42.5 °F 43.0 °F 96% 29.84 in 0.2 mi East 3.5 mph - N/A Fog Fog
8:54 AM 45.0 °F 43.5 °F 44.1 °F 97% 29.85 in 0.5 mi SE 3.5 mph - N/A Fog Fog
9:07 AM 44.6 °F 43.1 °F 44.6 °F 100% 29.85 in 1.5 mi SSE 3.5 mph - N/A   Overcast
9:36 AM 44.6 °F 43.1 °F 44.6 °F 100% 29.84 in 2.0 mi SSE 3.5 mph - N/A   Overcast
9:49 AM 44.6 °F 42.2 °F 44.6 °F 100% 29.83 in 2.0 mi SE 4.6 mph - N/A   Overcast
9:54 AM 45.0 °F 41.8 °F 44.1 °F 97% 29.83 in 2.0 mi SE 5.8 mph - N/A   Overcast
10:54 AM 46.9 °F - 45.0 °F 93% 29.84 in 2.5 mi SW 5.8 mph - N/A   Overcast
11:32 AM 46.4 °F 45.2 °F 46.4 °F 100% 29.82 in 1.2 mi WNW 3.5 mph - N/A   Overcast
11:54 AM 46.9 °F - 46.0 °F 97% 29.82 in 1.2 mi WNW 3.5 mph - N/A   Overcast
12:20 PM 48.2 °F - 46.4 °F 93% 29.81 in 2.5 mi WNW 4.6 mph - N/A   Overcast
12:38 PM 48.2 °F - 46.4 °F 93% 29.80 in 3.0 mi WNW 5.8 mph - N/A   Overcast
1:54 PM 48.9 °F - 46.0 °F 90% 29.79 in 6.0 mi WNW 9.2 mph - 0.00 in   Overcast
2:54 PM 48.0 °F - 45.0 °F 89% 29.78 in 6.0 mi NW 8.1 mph - N/A   Overcast
3:54 PM 46.9 °F - 44.1 °F 90% 29.79 in 6.0 mi WNW 5.8 mph - 0.00 in Rain Light Rain
4:54 PM 46.9 °F - 43.0 °F 86% 29.80 in 8.0 mi NW 11.5 mph - 0.00 in   Overcast
5:54 PM 46.0 °F 40.6 °F 42.1 °F 86% 29.83 in 9.0 mi WNW 11.5 mph - N/A   Overcast
6:47 PM 46.4 °F 41.1 °F 41.0 °F 81% 29.85 in 10.0 mi WNW 11.5 mph - N/A   Overcast
6:54 PM 45.0 °F 39.3 °F 39.9 °F 82% 29.85 in 10.0 mi NW 11.5 mph - N/A   Overcast
7:54 PM 44.1 °F 38.1 °F 37.9 °F 79% 29.87 in 10.0 mi NW 11.5 mph - N/A   Overcast
8:42 PM 44.6 °F 38.8 °F 37.4 °F 76% 29.86 in 10.0 mi WNW 11.5 mph - N/A   Overcast
8:54 PM 43.0 °F 38.8 °F 37.0 °F 80% 29.87 in 10.0 mi WNW 6.9 mph - N/A   Overcast
9:33 PM 42.8 °F 37.0 °F 37.4 °F 81% 29.86 in 10.0 mi West 10.4 mph - N/A   Overcast
9:54 PM 43.0 °F 35.7 °F 36.0 °F 76% 29.87 in 10.0 mi West 15.0 mph - N/A   Overcast
10:39 PM 39.2 °F 31.6 °F 32.0 °F 75% 29.88 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
10:54 PM 39.0 °F 29.9 °F 32.0 °F 76% 29.88 in 10.0 mi WNW 17.3 mph 23.0 mph N/A   Clear
11:12 PM 37.4 °F 27.8 °F 32.0 °F 81% 29.88 in 10.0 mi WNW 17.3 mph 23.0 mph N/A   Mostly Cloudy
11:43 PM 35.6 °F 24.8 °F 30.2 °F 81% 29.90 in 10.0 mi WNW 19.6 mph 24.2 mph N/A   Partly Cloudy
11:54 PM 35.1 °F 25.5 °F 28.9 °F 78% 29.90 in 10.0 mi West 15.0 mph - N/A   Scattered Clouds