Weather History for St. Louis, MO

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Friday, January 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 32 °F 32 °F  
Max Temperature 41 °F 40 °F 72 °F (1997)
Min Temperature 24 °F 24 °F -9 °F (1879)
Degree Days  
Heating Degree Days 32 33  
Month to date heating degree days 132  
Since 1 July heating degree days 1897  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 20 °F    
Average Humidity 59    
Maximum Humidity 78    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.09 in 2.20 in (2004)
Month to date precipitation 0.36  
Year to date precipitation 0.36  
Snow  
Snow 0.00 in 0.20 in 4.40 in (1977)
Month to date snowfall 0.7  
Since 1 July snowfall 5.8  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.40 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 04, 2013 Rise Set
Actual Time 7:19 AM CST 4:53 PM CST
Civil Twilight 6:50 AM CST 5:23 PM CST
Nautical Twilight 6:17 AM CST 5:56 PM CST
Astronomical Twilight 5:44 AM CST 6:28 PM CST
Moon No Moon Rise 11:07 AM CST (1/4)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waning Gibbous, 55% of the Moon is Illuminated
Jan 4
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 28.9 °F 21.1 °F 21.9 °F 75% 30.41 in 10.0 mi WNW 8.1 mph - N/A   Clear
1:51 AM 26.1 °F 18.4 °F 19.9 °F 78% 30.41 in 10.0 mi West 6.9 mph - N/A   Clear
2:51 AM 26.1 °F 19.4 °F 19.0 °F 75% 30.42 in 10.0 mi West 5.8 mph - N/A   Clear
3:51 AM 25.0 °F 18.1 °F 18.0 °F 75% 30.43 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
4:51 AM 28.0 °F 20.8 °F 21.0 °F 75% 30.43 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
5:51 AM 26.1 °F 20.5 °F 19.0 °F 75% 30.43 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
6:51 AM 25.0 °F 18.1 °F 18.0 °F 75% 30.44 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
7:51 AM 25.0 °F 19.3 °F 18.0 °F 75% 30.45 in 9.0 mi West 4.6 mph - N/A   Scattered Clouds
8:51 AM 30.0 °F 23.2 °F 21.0 °F 69% 30.45 in 9.0 mi WSW 6.9 mph - N/A   Partly Cloudy
9:51 AM 33.1 °F 25.5 °F 21.0 °F 61% 30.46 in 10.0 mi WSW 9.2 mph - N/A   Clear
10:51 AM 36.0 °F 27.5 °F 21.9 °F 57% 30.45 in 10.0 mi West 12.7 mph - N/A   Clear
11:51 AM 37.0 °F 29.3 °F 21.9 °F 54% 30.43 in 10.0 mi WSW 11.5 mph - N/A   Partly Cloudy
12:51 PM 39.0 °F 31.8 °F 21.9 °F 50% 30.40 in 10.0 mi West 11.5 mph - N/A   Clear
1:51 PM 39.9 °F 32.5 °F 21.0 °F 47% 30.40 in 10.0 mi SW 12.7 mph - N/A   Clear
2:51 PM 39.9 °F 31.8 °F 19.9 °F 45% 30.39 in 10.0 mi WSW 15.0 mph - N/A   Clear
3:51 PM 41.0 °F 35.2 °F 19.0 °F 41% 30.38 in 10.0 mi SW 9.2 mph - N/A   Clear
4:51 PM 37.9 °F 34.4 °F 18.0 °F 45% 30.36 in 10.0 mi WSW 4.6 mph - N/A   Clear
5:51 PM 36.0 °F 32.1 °F 19.0 °F 50% 30.37 in 10.0 mi SSW 4.6 mph - N/A   Clear
6:51 PM 36.0 °F - 18.0 °F 48% 30.38 in 10.0 mi Calm Calm - N/A   Clear
7:51 PM 35.1 °F - 19.0 °F 52% 30.38 in 10.0 mi Calm Calm - N/A   Clear
8:51 PM 33.1 °F - 19.0 °F 56% 30.36 in 10.0 mi Calm Calm - N/A   Clear
9:51 PM 30.9 °F - 19.0 °F 61% 30.36 in 10.0 mi Calm Calm - N/A   Clear
10:51 PM 32.0 °F 28.7 °F 19.0 °F 59% 30.35 in 10.0 mi SSW 3.5 mph - N/A   Clear
11:51 PM 32.0 °F 24.2 °F 19.0 °F 59% 30.34 in 10.0 mi SW 9.2 mph - N/A   Clear