Weather History for St. Louis, MO

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Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 27 °F 38 °F  
Max Temperature 33 °F 47 °F 79 °F (1935)
Min Temperature 21 °F 29 °F -1 °F (1885)
Degree Days  
Heating Degree Days 38 27  
Month to date heating degree days 588 625  
Since 1 July heating degree days 3090 3419  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 22 °F    
Average Humidity 77    
Maximum Humidity 88    
Minimum Humidity 65    
Precipitation  
Precipitation 0.89 in 0.08 in 1.68 in (1974)
Month to date precipitation 2.09 1.67  
Year to date precipitation 5.21 4.07  
Snow  
Snow 5.70 in 0.10 in 6.10 in (1912)
Month to date snowfall 9.7 3.3  
Since 1 July snowfall 12.7 14.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 13 mph (East)    
Max Wind Speed 29 mph    
Max Gust Speed 38 mph    
Visibility 4 miles    
Events Fog , Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 21, 2013 Rise Set
Actual Time 6:44 AM CST 5:46 PM CST
Civil Twilight 6:17 AM CST 6:13 PM CST
Nautical Twilight 5:46 AM CST 6:44 PM CST
Astronomical Twilight 5:15 AM CST 7:14 PM CST
Moon 2:02 PM CST (2/21) 3:47 AM CST (2/21)
Length of Visible Light 11h 55m
Length of Day
11h 01m
Waxing Gibbous, 84% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 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 21.9 °F - 12.0 °F 66% 30.38 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:51 AM 21.9 °F 14.5 °F 12.9 °F 68% 30.36 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
2:51 AM 23.0 °F 14.7 °F 12.9 °F 65% 30.32 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
3:51 AM 24.1 °F 15.2 °F 15.1 °F 69% 30.31 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
4:51 AM 24.1 °F 12.5 °F 15.1 °F 69% 30.26 in 10.0 mi East 12.7 mph - N/A   Mostly Cloudy
5:51 AM 25.0 °F 14.2 °F 15.1 °F 66% 30.29 in 10.0 mi East 11.5 mph - N/A   Mostly Cloudy
6:51 AM 25.0 °F 12.2 °F 16.0 °F 69% 30.25 in 10.0 mi East 16.1 mph 21.9 mph N/A   Mostly Cloudy
7:51 AM 26.1 °F 15.6 °F 17.1 °F 69% 30.30 in 10.0 mi East 11.5 mph - N/A   Mostly Cloudy
8:51 AM 26.1 °F 14.5 °F 17.1 °F 69% 30.27 in 10.0 mi ESE 13.8 mph - N/A   Overcast
9:51 AM 27.0 °F 14.3 °F 17.1 °F 66% 30.24 in 10.0 mi ESE 17.3 mph 20.7 mph N/A   Overcast
10:07 AM 26.6 °F 14.3 °F 17.6 °F 69% 30.17 in 4.0 mi East 16.1 mph - 0.00 in Snow Light Snow
10:10 AM 26.6 °F 13.4 °F 17.6 °F 69% 30.14 in 2.0 mi East 18.4 mph 24.2 mph 0.00 in Snow Light Snow
10:14 AM 26.6 °F 12.4 °F 17.6 °F 69% 30.13 in 1.5 mi East 21.9 mph - 0.00 in Snow Light Snow
10:26 AM 26.6 °F 14.7 °F 17.6 °F 69% 30.13 in 2.0 mi East 15.0 mph 28.8 mph 0.03 in Snow Light Ice Pellets
10:30 AM 26.6 °F 14.7 °F 19.4 °F 74% 30.12 in 4.0 mi East 15.0 mph 27.6 mph 0.04 in Snow Light Ice Pellets
10:34 AM 26.6 °F 14.7 °F 19.4 °F 74% 30.12 in 5.0 mi East 15.0 mph 21.9 mph 0.04 in Snow Light Ice Pellets
10:46 AM 26.6 °F 15.7 °F 19.4 °F 74% 30.14 in 5.0 mi East 12.7 mph 18.4 mph 0.05 in Snow Light Snow
10:51 AM 26.1 °F 13.1 °F 19.0 °F 75% 30.15 in 5.0 mi East 17.3 mph - 0.05 in Snow Light Snow
10:56 AM 26.6 °F 13.1 °F 19.4 °F 74% 30.11 in 3.0 mi East 19.6 mph - 0.00 in Snow Light Snow
11:01 AM 26.6 °F 14.7 °F 19.4 °F 74% 30.13 in 4.0 mi East 15.0 mph - 0.00 in Snow Light Snow
11:07 AM 26.6 °F 13.4 °F 19.4 °F 74% 30.08 in 2.5 mi East 18.4 mph - 0.00 in Snow Light Snow
11:19 AM 26.6 °F 12.7 °F 19.4 °F 74% 30.05 in 1.2 mi East 20.7 mph 29.9 mph 0.01 in Snow Light Snow
11:24 AM 26.6 °F 14.3 °F 19.4 °F 74% 30.09 in 1.0 mi East 16.1 mph 29.9 mph 0.03 in Snow Ice Pellets
11:28 AM 26.6 °F 15.7 °F 19.4 °F 74% 30.11 in 0.5 mi ESE 12.7 mph 26.5 mph 0.04 in Snow Snow
11:31 AM 26.6 °F 14.7 °F 19.4 °F 74% 30.12 in 0.2 mi East 15.0 mph 24.2 mph 0.06 in Snow Heavy Snow
11:39 AM 24.8 °F 10.3 °F 21.2 °F 86% 30.07 in 0.2 mi East 20.7 mph - 0.10 in Fog , Snow Heavy Snow
11:45 AM 24.8 °F 11.5 °F 21.2 °F 86% 30.08 in 0.5 mi East 17.3 mph - 0.13 in Fog , Snow Snow
11:51 AM 25.0 °F 13.1 °F 21.0 °F 85% 30.13 in 0.5 mi East 13.8 mph - 0.13 in Fog , Snow Snow
12:51 PM 25.0 °F 15.5 °F 21.9 °F 88% 30.16 in 0.5 mi NE 9.2 mph - 0.18 in Fog , Snow Snow
1:39 PM 24.8 °F 15.3 °F 21.2 °F 86% 30.12 in 0.5 mi NE 9.2 mph - 0.12 in Fog , Snow Snow
1:51 PM 25.0 °F 14.8 °F 21.0 °F 85% 30.14 in 0.5 mi ENE 10.4 mph - 0.14 in Fog , Snow Snow
2:04 PM 24.8 °F 14.6 °F 21.2 °F 86% 30.12 in 0.2 mi East 10.4 mph - 0.03 in Fog , Snow Heavy Snow
2:27 PM 24.8 °F 11.1 °F 21.2 °F 86% 30.04 in 0.2 mi East 18.4 mph - 0.15 in Fog , Snow Heavy Snow
2:51 PM 25.0 °F 10.2 °F 21.9 °F 88% 30.06 in 0.2 mi East 21.9 mph - 0.28 in Fog , Snow Heavy Snow
3:17 PM 26.6 °F 12.0 °F 21.2 °F 80% 29.96 in 0.8 mi East 23.0 mph 29.9 mph 0.04 in Snow Light Snow
3:22 PM 26.6 °F 12.4 °F 21.2 °F 80% 29.94 in 1.0 mi East 21.9 mph 29.9 mph N/A Snow Light Snow
3:30 PM 26.6 °F 12.4 °F 21.2 °F 80% 29.94 in 1.5 mi East 21.9 mph 29.9 mph 0.05 in Rain , Snow Light Freezing Rain
3:51 PM 27.0 °F 12.5 °F 23.0 °F 85% 29.96 in 1.5 mi East 23.0 mph 32.2 mph 0.06 in Rain Light Freezing Rain
4:06 PM 28.4 °F 14.4 °F 23.0 °F 80% 29.92 in 3.0 mi East 23.0 mph 34.5 mph 0.01 in Rain Light Freezing Rain
4:22 PM 28.4 °F 14.4 °F 23.0 °F 80% 29.90 in 7.0 mi East 23.0 mph 31.1 mph 0.01 in   Light Freezing Drizzle
4:36 PM 28.4 °F 14.1 °F 24.8 °F 86% 29.87 in 4.0 mi East 24.2 mph 31.1 mph 0.01 in Rain Light Freezing Rain
4:51 PM 28.9 °F 17.7 °F 24.1 °F 82% 29.94 in 3.0 mi East 15.0 mph 25.3 mph 0.02 in Rain Light Freezing Rain
5:22 PM 30.2 °F 18.1 °F 24.8 °F 80% 29.87 in 4.0 mi East 18.4 mph 28.8 mph 0.01 in Rain Light Freezing Rain
5:37 PM 30.2 °F 18.9 °F 24.8 °F 80% 29.89 in 7.0 mi ESE 16.1 mph - 0.01 in Rain Light Freezing Rain
5:44 PM 30.2 °F 18.1 °F 26.6 °F 86% 29.86 in 2.5 mi East 18.4 mph 23.0 mph 0.02 in Rain Light Freezing Rain
5:51 PM 30.0 °F 19.1 °F 26.1 °F 85% 29.91 in 2.5 mi East 15.0 mph 23.0 mph 0.03 in Rain Light Freezing Rain
6:07 PM 30.2 °F 17.8 °F 26.6 °F 86% 29.87 in 4.0 mi East 19.6 mph 25.3 mph 0.01 in Rain Light Freezing Rain
6:14 PM 30.2 °F 17.4 °F 26.6 °F 86% 29.86 in 7.0 mi ESE 20.7 mph - 0.01 in   Overcast
6:36 PM 30.2 °F 18.9 °F 26.6 °F 86% 29.90 in 6.0 mi ESE 16.1 mph - 0.01 in Rain Light Freezing Rain
6:42 PM 30.2 °F 18.5 °F 26.6 °F 86% 29.88 in 4.0 mi ESE 17.3 mph - 0.01 in Rain Light Freezing Rain
6:51 PM 30.9 °F 19.4 °F 27.0 °F 85% 29.90 in 4.0 mi ESE 17.3 mph 26.5 mph 0.02 in Rain Light Freezing Rain
6:57 PM 32.0 °F 19.8 °F 26.6 °F 80% 29.86 in 2.5 mi ESE 20.7 mph 25.3 mph 0.01 in Rain Light Freezing Rain
7:08 PM 32.0 °F 19.8 °F 26.6 °F 80% 29.86 in 4.0 mi ESE 20.7 mph 26.5 mph 0.02 in Rain Light Freezing Rain
7:24 PM 32.0 °F 19.5 °F 26.6 °F 80% 29.87 in 7.0 mi ESE 21.9 mph 29.9 mph 0.02 in   Overcast
7:51 PM 32.0 °F 19.8 °F 27.0 °F 82% 29.90 in 7.0 mi ESE 20.7 mph 29.9 mph 0.02 in   Overcast
8:19 PM 32.0 °F 21.2 °F 26.6 °F 80% 29.86 in 4.0 mi SE 16.1 mph 29.9 mph 0.00 in Rain Light Freezing Rain
8:38 PM 32.0 °F 21.6 °F 26.6 °F 80% 29.86 in 3.0 mi SE 15.0 mph 25.3 mph 0.00 in Rain Light Freezing Rain
8:49 PM 32.0 °F 22.1 °F 28.4 °F 87% 29.86 in 2.0 mi SE 13.8 mph - 0.00 in Rain Light Freezing Rain
9:41 PM 32.0 °F 23.0 °F 28.4 °F 87% 29.86 in 2.0 mi SE 11.5 mph - 0.01 in   Light Freezing Drizzle
9:51 PM 32.0 °F 24.2 °F 28.9 °F 88% 29.89 in 2.0 mi SE 9.2 mph 18.4 mph 0.01 in   Light Freezing Drizzle
10:47 PM 32.0 °F 24.8 °F 28.4 °F 87% 29.83 in 3.0 mi SE 8.1 mph - 0.00 in   Light Freezing Drizzle
10:51 PM 32.0 °F 25.6 °F 28.9 °F 88% 29.87 in 3.0 mi SE 6.9 mph - 0.00 in   Light Freezing Drizzle
11:26 PM 33.8 °F 27.0 °F 30.2 °F 87% 29.83 in 2.5 mi SE 8.1 mph - 0.00 in   Light Drizzle
11:51 PM 33.1 °F 28.7 °F 30.0 °F 89% 29.87 in 2.5 mi SSE 4.6 mph - 0.00 in   Light Drizzle