Weather History for St. Louis, MO

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Monday, January 20, 2014

  Actual Average Record
Temperature  
Mean Temperature 42 °F 32 °F  
Max Temperature 50 °F 40 °F 72 °F (1906)
Min Temperature 33 °F 24 °F -18 °F (1985)
Degree Days  
Heating Degree Days 23 33  
Month to date heating degree days 713 668  
Since 1 July heating degree days 2553 2433  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 27 °F    
Average Humidity 53    
Maximum Humidity 70    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.08 in 1.63 in (1894)
Month to date precipitation 1.58 1.59  
Year to date precipitation 1.58 1.59  
Snow  
Snow 0.00 in 0.20 in 5.70 in (2011)
Month to date snowfall 15.3 3.6  
Since 1 July snowfall 20.9 8.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 20, 2014 Rise Set
Actual Time 7:15 AM CST 5:09 PM CST
Civil Twilight 6:47 AM CST 5:38 PM CST
Nautical Twilight 6:14 AM CST 6:10 PM CST
Astronomical Twilight 5:42 AM CST 6:42 PM CST
Moon 9:41 PM CST 9:18 AM CST
Length of Visible Light 10h 51m
Length of Day
9h 53m
Waning Gibbous, 82% of the Moon is Illuminated
Jan 20
Waning Gibbous
Jan 23
Last Quarter
Jan 30
New
Feb 6
First Quarter
Feb 14
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 46.0 °F 40.2 °F 24.1 °F 42% 29.79 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
1:51 AM 45.0 °F 39.3 °F 24.1 °F 44% 29.80 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
2:51 AM 45.0 °F 38.5 °F 25.0 °F 46% 29.82 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
3:51 AM 39.0 °F 32.8 °F 25.0 °F 57% 29.85 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
4:51 AM 39.0 °F 32.3 °F 26.1 °F 60% 29.88 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
5:51 AM 36.0 °F 33.3 °F 25.0 °F 64% 29.91 in 10.0 mi West 3.5 mph - N/A   Clear
6:51 AM 34.0 °F - 24.1 °F 67% 29.93 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:51 AM 36.0 °F 33.3 °F 26.1 °F 67% 29.94 in 10.0 mi WNW 3.5 mph - N/A   Scattered Clouds
8:51 AM 42.1 °F 38.4 °F 28.9 °F 60% 29.96 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
9:51 AM 41.0 °F 37.1 °F 28.0 °F 60% 29.97 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
10:51 AM 43.0 °F 38.2 °F 28.9 °F 58% 29.96 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
11:51 AM 45.0 °F 41.2 °F 30.0 °F 56% 29.94 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
12:51 PM 48.0 °F - 28.9 °F 48% 29.93 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
1:51 PM 48.9 °F - 28.9 °F 46% 29.93 in 10.0 mi NNW 6.9 mph - N/A   Scattered Clouds
2:51 PM 50.0 °F - 28.9 °F 44% 29.93 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
3:51 PM 48.0 °F - 28.9 °F 48% 29.94 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
4:51 PM 46.0 °F 44.8 °F 28.9 °F 51% 29.95 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
5:51 PM 43.0 °F 38.8 °F 28.9 °F 58% 29.97 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
6:51 PM 42.1 °F 39.2 °F 28.9 °F 60% 29.99 in 10.0 mi NNW 4.6 mph - N/A   Overcast
7:51 PM 39.9 °F 36.7 °F 28.9 °F 65% 29.99 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
8:51 PM 39.0 °F 34.8 °F 28.0 °F 65% 29.96 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
9:51 PM 41.0 °F 37.1 °F 28.9 °F 62% 29.95 in 10.0 mi West 5.8 mph - N/A   Overcast
10:51 PM 41.0 °F 33.1 °F 28.0 °F 60% 29.94 in 10.0 mi WNW 15.0 mph 20.7 mph N/A   Mostly Cloudy
11:51 PM 39.9 °F 33.9 °F 27.0 °F 60% 29.93 in 10.0 mi WNW 9.2 mph 19.6 mph N/A   Mostly Cloudy