Weather History for St. Louis, MO

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Monday, October 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F 57 °F  
Max Temperature 57 °F 67 °F 88 °F (1979)
Min Temperature 40 °F 48 °F 28 °F (1952)
Degree Days  
Heating Degree Days 16 9  
Month to date heating degree days 97 131  
Since 1 July heating degree days 100 172  
Cooling Degree Days 0 1  
Month to date cooling degree days 63 35  
Year to date cooling degree days 1728 1636  
Moisture  
Dew Point 38 °F    
Average Humidity 56    
Maximum Humidity 74    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in 0.11 in 0.76 in (1949)
Month to date precipitation 1.34 2.26  
Year to date precipitation 38.69 33.14  
Snow  
Snow 0.00 in 0.00 in T in (1937)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Since 1 September snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 21, 2013 Rise Set
Actual Time 7:17 AM CDT 6:14 PM CDT
Civil Twilight 6:50 AM CDT 6:41 PM CDT
Nautical Twilight 6:19 AM CDT 7:12 PM CDT
Astronomical Twilight 5:48 AM CDT 7:43 PM CDT
Moon 8:08 PM CDT (10/21) 9:50 AM CDT (10/21)
Length of Visible Light 11h 51m
Length of Day
10h 57m
Waning Gibbous, 92% of the Moon is Illuminated
Oct 21
Waning Gibbous
Oct 26
Last Quarter
Nov 3
New
Nov 9
First Quarter
Nov 17
Full

Hourly Weather History & Observations

Time (CDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 57.0 °F - 42.1 °F 57% 29.91 in 10.0 mi SW 12.7 mph - N/A   Mostly Cloudy
1:51 AM 55.0 °F - 42.1 °F 62% 29.92 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
2:51 AM 54.0 °F - 42.1 °F 64% 29.92 in 10.0 mi SW 10.4 mph - N/A   Partly Cloudy
3:51 AM 54.0 °F - 42.1 °F 64% 29.91 in 10.0 mi SW 11.5 mph - N/A   Clear
4:51 AM 52.0 °F - 41.0 °F 66% 29.92 in 10.0 mi WSW 6.9 mph - N/A   Clear
5:51 AM 51.1 °F - 41.0 °F 68% 29.94 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds
6:51 AM 50.0 °F - 42.1 °F 74% 29.96 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
7:51 AM 51.1 °F - 43.0 °F 74% 29.97 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
8:51 AM 53.1 °F - 43.0 °F 69% 30.00 in 10.0 mi NW 5.8 mph - N/A   Overcast
9:51 AM 52.0 °F - 43.0 °F 71% 30.03 in 10.0 mi North 12.7 mph - N/A   Overcast
10:51 AM 50.0 °F - 41.0 °F 71% 30.04 in 10.0 mi North 10.4 mph - N/A   Overcast
11:33 AM 51.8 °F - 42.8 °F 71% 30.05 in 10.0 mi NW 10.4 mph - N/A   Overcast
11:51 AM 52.0 °F - 39.0 °F 61% 30.05 in 10.0 mi NNW 12.7 mph - N/A   Overcast
11:59 AM 51.8 °F - 37.4 °F 58% 30.05 in 10.0 mi WNW 12.7 mph - N/A   Mostly Cloudy
12:51 PM 54.0 °F - 37.9 °F 55% 30.04 in 10.0 mi NNW 13.8 mph 18.4 mph N/A   Mostly Cloudy
1:51 PM 54.0 °F - 37.0 °F 53% 30.03 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
2:51 PM 55.0 °F - 35.1 °F 47% 30.02 in 10.0 mi NW 15.0 mph - N/A   Mostly Cloudy
3:51 PM 55.0 °F - 32.0 °F 42% 30.02 in 10.0 mi WNW 12.7 mph - N/A   Mostly Cloudy
4:51 PM 55.0 °F - 30.9 °F 40% 30.03 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
5:51 PM 52.0 °F - 30.9 °F 45% 30.04 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
6:51 PM 46.9 °F - 30.9 °F 54% 30.06 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
7:51 PM 48.0 °F - 30.9 °F 52% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:51 PM 46.0 °F - 33.1 °F 61% 30.07 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:51 PM 45.0 °F 43.5 °F 33.1 °F 63% 30.08 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
10:51 PM 42.1 °F - 33.1 °F 70% 30.08 in 9.0 mi Calm Calm - N/A   Clear
11:51 PM 41.0 °F - 33.1 °F 73% 30.08 in 10.0 mi Calm Calm - N/A   Clear