Weather History for St. Louis, MO

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Thursday, December 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F 35 °F  
Max Temperature 57 °F 43 °F 73 °F (1948)
Min Temperature 28 °F 27 °F 1 °F (1903)
Degree Days  
Heating Degree Days 22 30  
Month to date heating degree days 224 363  
Since 1 July heating degree days 1103 1189  
Cooling Degree Days 0 0  
Month to date cooling degree days 8 0  
Year to date cooling degree days 2217 1646  
Moisture  
Dew Point 22 °F    
Average Humidity 48    
Maximum Humidity 75    
Minimum Humidity 21    
Precipitation  
Precipitation 0.00 in 0.08 in 2.40 in (1901)
Month to date precipitation 0.88 1.27  
Year to date precipitation 31.18 39.39  
Snow  
Snow 0.00 in 0.10 in 7.60 in (2000)
Month to date snowfall 0.0 1.4  
Since 1 July snowfall 0.0 2.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 8 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed 16 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 13, 2012 Rise Set
Actual Time 7:11 AM CST 4:40 PM CST
Civil Twilight 6:41 AM CST 5:10 PM CST
Nautical Twilight 6:08 AM CST 5:43 PM CST
Astronomical Twilight 5:35 AM CST 6:16 PM CST
Moon 7:20 AM CST (12/13) 5:22 PM CST (12/13)
Length of Visible Light 10h 28m
Length of Day
9h 29m
New Moon, 0% of the Moon is Illuminated
Dec 13
New Moon
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 36.0 °F 31.1 °F 23.0 °F 59% 30.32 in 10.0 mi South 5.8 mph - N/A   Clear
1:51 AM 35.1 °F 32.2 °F 23.0 °F 61% 30.32 in 10.0 mi South 3.5 mph - N/A   Clear
2:51 AM 35.1 °F 28.6 °F 24.1 °F 64% 30.33 in 10.0 mi South 8.1 mph - N/A   Clear
3:51 AM 35.1 °F 29.3 °F 24.1 °F 64% 30.32 in 10.0 mi South 6.9 mph - N/A   Clear
4:51 AM 30.2 °F 26.7 °F 23.0 °F 75% 30.30 in 10.0 mi Variable 3.5 mph - N/A   Clear
5:51 AM 28.0 °F 21.7 °F 21.0 °F 75% 30.33 in 10.0 mi ESE 5.8 mph - N/A   Clear
6:51 AM 33.1 °F 27.7 °F 23.0 °F 66% 30.33 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
7:51 AM 35.1 °F 29.3 °F 24.1 °F 64% 30.32 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
8:51 AM 39.0 °F 32.8 °F 24.1 °F 55% 30.33 in 10.0 mi SSE 9.2 mph - N/A   Scattered Clouds
9:51 AM 42.1 °F 36.6 °F 24.1 °F 49% 30.33 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
10:51 AM 45.0 °F 40.1 °F 23.0 °F 42% 30.31 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
11:51 AM 50.0 °F - 23.0 °F 35% 30.28 in 10.0 mi South 11.5 mph 16.1 mph N/A   Mostly Cloudy
12:51 PM 53.1 °F - 23.0 °F 31% 30.25 in 10.0 mi SSE 12.7 mph - N/A   Mostly Cloudy
1:51 PM 55.9 °F - 18.0 °F 23% 30.22 in 10.0 mi South 13.8 mph - N/A   Partly Cloudy
2:51 PM 57.0 °F - 18.0 °F 22% 30.21 in 10.0 mi South 9.2 mph - N/A   Partly Cloudy
3:51 PM 55.0 °F - 19.9 °F 25% 30.20 in 10.0 mi South 11.5 mph - N/A   Partly Cloudy
6:51 PM 48.9 °F - 23.0 °F 36% 30.21 in 10.0 mi SSE 11.5 mph - N/A   Clear
7:51 PM 48.0 °F - 21.9 °F 36% 30.20 in 10.0 mi South 10.4 mph - N/A   Clear
8:51 PM 46.0 °F 41.4 °F 21.9 °F 39% 30.19 in 10.0 mi South 9.2 mph - N/A   Clear
9:51 PM 43.0 °F 39.5 °F 21.9 °F 43% 30.21 in 10.0 mi South 5.8 mph - N/A   Clear
10:51 PM 43.0 °F 41.3 °F 23.0 °F 45% 30.22 in 10.0 mi South 3.5 mph - N/A   Clear
11:51 PM 37.9 °F - 23.0 °F 55% 30.23 in 10.0 mi Calm Calm - N/A   Clear