Weather History for St. Louis, MO

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Tuesday, December 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 33 °F 36 °F  
Max Temperature 43 °F 43 °F 70 °F (1949)
Min Temperature 23 °F 28 °F 2 °F (1962)
Degree Days  
Heating Degree Days 32 29  
Month to date heating degree days 175 303  
Since 1 July heating degree days 1054 1129  
Cooling Degree Days 0 0  
Month to date cooling degree days 8 0  
Year to date cooling degree days 2217 1646  
Moisture  
Dew Point 19 °F    
Average Humidity 59    
Maximum Humidity 81    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.09 in 1.20 in (1949)
Month to date precipitation 0.88 1.10  
Year to date precipitation 31.18 39.22  
Snow  
Snow 0.00 in 0.10 in 4.30 in (1963)
Month to date snowfall 0.0 1.1  
Since 1 July snowfall 0.0 1.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 7:09 AM CST 4:40 PM CST
Civil Twilight 6:40 AM CST 5:09 PM CST
Nautical Twilight 6:06 AM CST 5:43 PM CST
Astronomical Twilight 5:34 AM CST 6:15 PM CST
Moon 5:05 AM CST (12/11) 3:18 PM CST (12/11)
Length of Visible Light 10h 29m
Length of Day
9h 30m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
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
12:51 AM 26.1 °F 21.9 °F 18.0 °F 71% 30.12 in 10.0 mi West 3.5 mph - N/A   Clear
1:51 AM 25.0 °F 20.7 °F 18.0 °F 75% 30.12 in 10.0 mi West 3.5 mph - N/A   Clear
2:51 AM 25.0 °F 20.7 °F 18.0 °F 75% 30.12 in 10.0 mi SW 3.5 mph - N/A   Clear
3:51 AM 24.1 °F 18.2 °F 17.1 °F 75% 30.13 in 10.0 mi SW 4.6 mph - N/A   Clear
4:51 AM 24.1 °F 18.2 °F 17.1 °F 75% 30.13 in 10.0 mi SW 4.6 mph - N/A   Clear
5:51 AM 23.0 °F - 17.1 °F 78% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:51 AM 23.0 °F 18.4 °F 17.1 °F 78% 30.14 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
7:51 AM 25.0 °F 17.1 °F 18.0 °F 75% 30.15 in 10.0 mi SSW 6.9 mph - N/A   Clear
8:51 AM 28.9 °F 19.8 °F 19.0 °F 67% 30.16 in 10.0 mi South 10.4 mph - N/A   Clear
9:51 AM 32.0 °F 23.6 °F 19.0 °F 59% 30.17 in 10.0 mi South 10.4 mph - N/A   Clear
10:51 AM 36.0 °F 28.5 °F 17.1 °F 46% 30.17 in 10.0 mi SW 10.4 mph - N/A   Clear
11:51 AM 37.0 °F 32.4 °F 18.0 °F 46% 30.16 in 10.0 mi SW 5.8 mph - N/A   Clear
12:51 PM 39.9 °F 34.5 °F 17.1 °F 40% 30.14 in 10.0 mi WSW 8.1 mph - N/A   Clear
1:51 PM 42.1 °F 38.4 °F 18.0 °F 38% 30.13 in 10.0 mi Variable 5.8 mph - N/A   Clear
2:51 PM 42.1 °F 39.2 °F 17.1 °F 37% 30.14 in 10.0 mi West 4.6 mph - N/A   Clear
3:51 PM 42.1 °F 39.2 °F 18.0 °F 38% 30.14 in 10.0 mi Variable 4.6 mph - N/A   Clear
4:51 PM 39.0 °F 36.8 °F 18.0 °F 43% 30.16 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:51 PM 37.9 °F 34.4 °F 18.0 °F 45% 30.17 in 10.0 mi South 4.6 mph - N/A   Clear
6:51 PM 35.1 °F 32.2 °F 19.9 °F 54% 30.19 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:51 PM 32.0 °F - 21.0 °F 64% 30.21 in 10.0 mi Calm Calm - N/A   Clear
8:51 PM 32.0 °F - 21.9 °F 66% 30.22 in 10.0 mi Calm Calm - N/A   Clear
9:51 PM 30.2 °F - 21.2 °F 69% 30.19 in 10.0 mi Calm Calm - N/A   Clear
10:51 PM 30.0 °F - 21.0 °F 69% 30.23 in 10.0 mi Calm Calm - N/A   Clear
11:51 PM 28.9 °F - 19.9 °F 69% 30.26 in 10.0 mi Calm Calm - N/A   Clear