Weather History for St. Louis, MO

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Wednesday, November 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 54 °F 44 °F  
Max Temperature 65 °F 53 °F 75 °F (1990)
Min Temperature 42 °F 36 °F 9 °F (1880)
Degree Days  
Heating Degree Days 11 21  
Month to date heating degree days 371 340  
Since 1 July heating degree days 684 616  
Cooling Degree Days 0 0  
Month to date cooling degree days 4 0  
Year to date cooling degree days 2209 1642  
Growing Degree Days 3 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.13 in 2.41 in (1883)
Month to date precipitation 1.31 2.72  
Year to date precipitation 30.21 36.93  
Snow  
Snow 0.00 in 0.00 in 0.80 in (1926)
Month to date snowfall 0.0 0.3  
Since 1 July snowfall 0.0 0.3  
Since 1 September snowfall 0.0 0.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.23 in    
Wind  
Wind Speed 4 mph (South)    
Max Wind Speed 12 mph    
Max Gust Speed 14 mph    
Visibility 3 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Nov. 21, 2012 Rise Set
Actual Time 6:50 AM CST 4:43 PM CST
Civil Twilight 6:22 AM CST 5:12 PM CST
Nautical Twilight 5:49 AM CST 5:45 PM CST
Astronomical Twilight 5:17 AM CST 6:16 PM CST
Moon 12:56 PM CST (11/21) 12:13 AM CST (11/21)
Length of Visible Light 10h 50m
Length of Day
9h 52m
First Quarter, 62% of the Moon is Illuminated
Nov 21
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 19
First 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 44.1 °F 42.5 °F 42.1 °F 93% 30.22 in 0.1 mi WNW 3.5 mph - N/A Fog Fog
1:51 AM 44.1 °F 42.5 °F 42.1 °F 93% 30.22 in 0.1 mi NW 3.5 mph - N/A Fog Fog
2:51 AM 44.1 °F - 43.0 °F 96% 30.23 in 0.1 mi Calm Calm - N/A Fog Fog
3:51 AM 44.1 °F - 42.1 °F 93% 30.23 in 0.1 mi Calm Calm - N/A Fog Fog
4:51 AM 43.0 °F 41.3 °F 41.0 °F 93% 30.25 in 0.1 mi WNW 3.5 mph - N/A Fog Fog
5:51 AM 43.0 °F - 41.0 °F 93% 30.25 in 0.1 mi Calm Calm - N/A Fog Fog
6:51 AM 43.0 °F 41.3 °F 41.0 °F 93% 30.27 in 0.1 mi West 3.5 mph - N/A Fog Fog
7:51 AM 42.1 °F - 39.9 °F 92% 30.29 in 0.1 mi Calm Calm - N/A Fog Fog
8:51 AM 43.0 °F - 41.0 °F 93% 30.29 in 0.1 mi Calm Calm - N/A Fog Fog
9:51 AM 45.0 °F - 44.1 °F 97% 30.30 in 0.1 mi Calm Calm - N/A Fog Fog
10:39 AM 46.4 °F - 44.6 °F 93% 30.29 in 0.1 mi Calm Calm - N/A Fog Fog
10:51 AM 48.2 °F - 46.4 °F 93% 30.29 in 0.1 mi Calm Calm - N/A Fog Fog
10:56 AM 48.2 °F - 46.4 °F 93% 30.29 in 0.2 mi Calm Calm - N/A Fog Fog
11:04 AM 48.2 °F - 46.4 °F 93% 30.29 in 0.2 mi Calm Calm - N/A Fog Fog
11:15 AM 48.2 °F - 46.4 °F 93% 30.28 in 0.8 mi Calm Calm - N/A   Overcast
11:33 AM 50.0 °F - 46.4 °F 87% 30.27 in 1.0 mi Calm Calm - N/A   Overcast
11:43 AM 50.0 °F - 46.4 °F 87% 30.27 in 1.5 mi Calm Calm - N/A   Overcast
11:51 AM 51.8 °F - 48.2 °F 88% 30.26 in 2.0 mi Calm Calm - N/A   Mostly Cloudy
12:01 PM 53.6 °F - 48.2 °F 82% 30.25 in 4.0 mi Calm Calm - N/A   Scattered Clouds
12:18 PM 53.6 °F - 48.2 °F 82% 30.24 in 5.0 mi Calm Calm - N/A   Haze
12:51 PM 60.1 °F - 48.9 °F 67% 30.24 in 6.0 mi SSW 3.5 mph - N/A   Haze
1:51 PM 63.0 °F - 46.9 °F 56% 30.22 in 8.0 mi Calm Calm - N/A   Clear
2:51 PM 63.0 °F - 46.0 °F 54% 30.20 in 9.0 mi Variable 4.6 mph - N/A   Clear
3:51 PM 62.1 °F - 46.9 °F 58% 30.19 in 9.0 mi South 6.9 mph - N/A   Clear
4:51 PM 57.9 °F - 48.0 °F 70% 30.18 in 7.0 mi SSE 6.9 mph - N/A   Partly Cloudy
5:51 PM 57.0 °F - 48.0 °F 72% 30.18 in 6.0 mi SSE 9.2 mph - N/A   Haze
6:51 PM 54.0 °F - 46.9 °F 77% 30.17 in 5.0 mi SE 6.9 mph - N/A   Haze
7:51 PM 50.0 °F - 44.1 °F 80% 30.18 in 5.0 mi SE 6.9 mph - N/A   Haze
8:51 PM 53.1 °F - 46.0 °F 77% 30.17 in 5.0 mi SE 10.4 mph - N/A   Haze
9:51 PM 54.0 °F - 45.0 °F 72% 30.16 in 6.0 mi South 8.1 mph - N/A   Haze
10:51 PM 52.0 °F - 45.0 °F 77% 30.16 in 5.0 mi South 4.6 mph - N/A   Haze
11:51 PM 52.0 °F - 45.0 °F 77% 30.15 in 6.0 mi South 10.4 mph - N/A   Haze