Weather History for St. Louis, MO

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Monday, January 9, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F 32 °F  
Max Temperature 52 °F 39 °F 65 °F (1876)
Min Temperature 28 °F 24 °F -16 °F (1875)
Degree Days  
Heating Degree Days 25 34  
Month to date heating degree days 210 299  
Since 1 July heating degree days 1607 2064  
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 64    
Maximum Humidity 92    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in 0.07 in 0.88 in (1987)
Month to date precipitation T 0.76  
Year to date precipitation T 0.76  
Snow  
Snow 0.00 in 0.20 in 9.10 in (1987)
Month to date snowfall T 1.7  
Since 1 July snowfall 2.0 6.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.22 in    
Wind  
Wind Speed 4 mph (West)    
Max Wind Speed 10 mph    
Max Gust Speed 13 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 09, 2012 Rise Set
Actual Time 7:19 AM CST 4:57 PM CST
Civil Twilight 6:50 AM CST 5:26 PM CST
Nautical Twilight 6:17 AM CST 5:59 PM CST
Astronomical Twilight 5:45 AM CST 6:32 PM CST
Moon 5:43 PM CST (1/9) 7:20 AM CST (1/9)
Length of Visible Light 10h 36m
Length of Day
9h 37m
Full, 100% of the Moon is Illuminated
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New
Jan 30
First Quarter
Feb 7
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 37.0 °F 33.3 °F 30.0 °F 76% 30.27 in 10.0 mi NNE 4.6 mph - N/A   Clear
1:51 AM 35.1 °F - 28.0 °F 76% 30.28 in 10.0 mi Calm Calm - N/A   Clear
2:51 AM 32.0 °F - 28.9 °F 88% 30.30 in 9.0 mi Calm Calm - N/A   Clear
3:51 AM 30.9 °F - 27.0 °F 85% 30.26 in 9.0 mi Calm Calm - N/A   Clear
4:51 AM 30.0 °F 25.2 °F 27.0 °F 88% 30.24 in 9.0 mi NW 4.6 mph - N/A   Clear
5:51 AM 28.9 °F - 25.0 °F 85% 30.26 in 8.0 mi Calm Calm - N/A   Clear
6:51 AM 28.9 °F 25.2 °F 27.0 °F 92% 30.27 in 7.0 mi West 3.5 mph - N/A   Partly Cloudy
7:51 AM 30.0 °F - 26.1 °F 85% 30.27 in 6.0 mi Calm Calm - N/A   Scattered Clouds
8:51 AM 35.1 °F 31.0 °F 30.0 °F 82% 30.26 in 7.0 mi West 4.6 mph - N/A   Scattered Clouds
9:51 AM 39.0 °F 35.7 °F 30.9 °F 73% 30.27 in 7.0 mi West 4.6 mph - N/A   Mostly Cloudy
10:51 AM 43.0 °F 41.3 °F 30.0 °F 60% 30.25 in 9.0 mi West 3.5 mph - N/A   Mostly Cloudy
11:51 AM 46.0 °F 42.5 °F 28.9 °F 51% 30.22 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
12:51 PM 46.9 °F - 28.0 °F 48% 30.20 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
1:51 PM 50.0 °F - 27.0 °F 41% 30.18 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
2:51 PM 51.1 °F - 24.1 °F 35% 30.17 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
3:51 PM 51.1 °F - 25.0 °F 36% 30.17 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
4:51 PM 48.0 °F - 27.0 °F 44% 30.18 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
5:51 PM 45.0 °F 41.2 °F 26.1 °F 48% 30.18 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
6:51 PM 42.1 °F 39.2 °F 25.0 °F 51% 30.18 in 10.0 mi WSW 4.6 mph - N/A   Clear
7:51 PM 39.9 °F 37.8 °F 25.0 °F 55% 30.17 in 10.0 mi West 3.5 mph - N/A   Clear
8:51 PM 37.9 °F - 25.0 °F 60% 30.17 in 10.0 mi Calm Calm - N/A   Clear
9:51 PM 35.1 °F 31.0 °F 26.1 °F 70% 30.16 in 10.0 mi WSW 4.6 mph - N/A   Clear
10:51 PM 37.0 °F 34.5 °F 25.0 °F 62% 30.15 in 10.0 mi WSW 3.5 mph - N/A   Clear
11:51 PM 34.0 °F - 25.0 °F 70% 30.12 in 10.0 mi Calm Calm - N/A   Clear