Weather History for St. Louis, MO

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Wednesday, January 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 25 °F 32 °F  
Max Temperature 35 °F 40 °F 72 °F (1880)
Min Temperature 15 °F 24 °F -19 °F (1930)
Degree Days  
Heating Degree Days 40 33  
Month to date heating degree days 474 602  
Since 1 July heating degree days 1871 2367  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 12 °F    
Average Humidity 58    
Maximum Humidity 77    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in 0.08 in 1.62 in (1949)
Month to date precipitation 1.04 1.44  
Year to date precipitation 1.04 1.44  
Snow  
Snow 0.00 in 0.10 in 10.00 in (1892)
Month to date snowfall 1.8 3.2  
Since 1 July snowfall 3.8 8.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.23 in    
Wind  
Wind Speed 7 mph (South)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 18, 2012 Rise Set
Actual Time 7:17 AM CST 5:06 PM CST
Civil Twilight 6:48 AM CST 5:35 PM CST
Nautical Twilight 6:15 AM CST 6:08 PM CST
Astronomical Twilight 5:43 AM CST 6:40 PM CST
Moon 2:46 AM CST (1/18) 12:46 PM CST (1/18)
Length of Visible Light 10h 47m
Length of Day
9h 49m
Waning Crescent, 24% of the Moon is Illuminated
Jan 18
Waning Crescent
Jan 23
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
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 23.0 °F 15.8 °F 12.9 °F 65% 30.41 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
1:51 AM 23.0 °F 17.0 °F 12.0 °F 63% 30.41 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
2:51 AM 21.0 °F 14.6 °F 10.9 °F 65% 30.40 in 10.0 mi NW 4.6 mph - N/A   Clear
3:51 AM 21.2 °F 16.4 °F 10.9 °F 65% 30.38 in 10.0 mi NNW 3.5 mph - N/A   Clear
4:51 AM 16.9 °F 11.5 °F 10.0 °F 75% 30.38 in 10.0 mi NNW 3.5 mph - N/A   Clear
5:51 AM 15.6 °F - 8.1 °F 72% 30.39 in 10.0 mi Calm Calm - N/A   Clear
6:51 AM 15.4 °F - 8.1 °F 73% 30.39 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:51 AM 14.9 °F 9.2 °F 8.1 °F 74% 30.38 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
8:51 AM 18.0 °F 11.1 °F 10.0 °F 71% 30.37 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
9:51 AM 21.0 °F 12.4 °F 10.9 °F 65% 30.37 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
10:51 AM 25.0 °F 15.5 °F 12.0 °F 58% 30.34 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
11:51 AM 30.0 °F 21.7 °F 12.0 °F 47% 30.28 in 10.0 mi SSE 9.2 mph - N/A   Scattered Clouds
12:51 PM 32.0 °F 24.2 °F 10.9 °F 42% 30.25 in 10.0 mi SSW 9.2 mph - N/A   Scattered Clouds
1:51 PM 33.1 °F 25.5 °F 10.0 °F 38% 30.19 in 10.0 mi SSW 9.2 mph - N/A   Scattered Clouds
2:51 PM 33.1 °F 24.9 °F 12.9 °F 43% 30.17 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
3:51 PM 34.0 °F 26.6 °F 14.0 °F 44% 30.12 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
4:51 PM 34.0 °F 24.6 °F 12.9 °F 42% 30.10 in 10.0 mi SSE 13.8 mph - N/A   Mostly Cloudy
5:51 PM 33.1 °F 24.9 °F 12.9 °F 43% 30.07 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
6:51 PM 30.9 °F 22.8 °F 17.1 °F 57% 30.07 in 10.0 mi SSE 9.2 mph - N/A   Partly Cloudy
7:51 PM 30.0 °F 22.4 °F 15.1 °F 54% 30.04 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
8:51 PM 30.9 °F 22.2 °F 14.0 °F 50% 30.04 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
9:51 PM 30.9 °F 24.3 °F 14.0 °F 50% 30.03 in 10.0 mi South 6.9 mph - N/A   Overcast
10:51 PM 30.9 °F 23.5 °F 15.1 °F 52% 30.02 in 10.0 mi South 8.1 mph - N/A   Overcast
11:51 PM 30.0 °F 23.2 °F 16.0 °F 56% 30.01 in 10.0 mi South 6.9 mph - N/A   Overcast