Weather History for St. Louis, MO

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Wednesday, May 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 82 °F 66 °F  
Max Temperature 92 °F 76 °F 94 °F (1944)
Min Temperature 72 °F 57 °F 39 °F (1959)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 87 52  
Since 1 July heating degree days 4472 4508  
Cooling Degree Days 17 4  
Month to date cooling degree days 50 42  
Year to date cooling degree days 84 88  
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 45    
Maximum Humidity 58    
Minimum Humidity 32    
Precipitation  
Precipitation 0.00 in 0.16 in 1.91 in (1990)
Month to date precipitation 2.69 2.20  
Year to date precipitation 19.70 13.85  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2012)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 27.9 17.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 13 mph (WSW)    
Max Wind Speed 22 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 15, 2013 Rise Set
Actual Time 5:49 AM CDT 8:07 PM CDT
Civil Twilight 5:19 AM CDT 8:37 PM CDT
Nautical Twilight 4:42 AM CDT 9:14 PM CDT
Astronomical Twilight 4:01 AM CDT 9:54 PM CDT
Moon 10:24 AM CDT (5/15) No Moon Set
Length of Visible Light 15h 17m
Length of Day
14h 18m
Waxing Crescent, 27% of the Moon is Illuminated
May 15
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 78.1 °F - 48.0 °F 35% 29.84 in 10.0 mi West 13.8 mph - N/A   Clear
1:51 AM 78.1 °F - 48.0 °F 35% 29.85 in 10.0 mi WSW 18.4 mph 24.2 mph N/A   Clear
2:51 AM 75.2 °F - 48.2 °F 38% 29.89 in 10.0 mi West 13.8 mph - N/A   Clear
3:51 AM 75.0 °F - 48.9 °F 40% 29.87 in 10.0 mi WSW 12.7 mph - N/A   Clear
4:51 AM 73.9 °F - 50.0 °F 43% 29.88 in 10.0 mi WSW 15.0 mph - N/A   Clear
5:51 AM 73.0 °F - 51.1 °F 46% 29.89 in 10.0 mi WSW 11.5 mph 20.7 mph N/A   Partly Cloudy
6:51 AM 72.0 °F - 52.0 °F 49% 29.91 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
7:51 AM 73.9 °F - 53.1 °F 48% 29.91 in 10.0 mi WSW 12.7 mph 20.7 mph N/A   Scattered Clouds
8:51 AM 77.0 °F - 53.1 °F 43% 29.91 in 10.0 mi West 17.3 mph 27.6 mph N/A   Scattered Clouds
9:51 AM 79.0 °F - 55.9 °F 45% 29.91 in 10.0 mi WSW 18.4 mph 24.2 mph N/A   Scattered Clouds
10:51 AM 82.0 °F 82.0 °F 57.9 °F 44% 29.91 in 10.0 mi WSW 16.1 mph 21.9 mph N/A   Scattered Clouds
11:51 AM 84.9 °F 84.4 °F 59.0 °F 41% 29.89 in 10.0 mi WSW 13.8 mph 21.9 mph N/A   Partly Cloudy
12:51 PM 88.0 °F 87.6 °F 60.1 °F 39% 29.86 in 10.0 mi SW 9.2 mph - N/A   Partly Cloudy
1:51 PM 90.0 °F 89.7 °F 60.1 °F 37% 29.84 in 10.0 mi SW 15.0 mph - N/A   Partly Cloudy
2:51 PM 91.0 °F 90.9 °F 61.0 °F 36% 29.83 in 10.0 mi West 11.5 mph 16.1 mph N/A   Scattered Clouds
3:51 PM 91.9 °F 90.8 °F 57.9 °F 32% 29.81 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Scattered Clouds
4:51 PM 90.0 °F 88.1 °F 55.9 °F 31% 29.80 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
5:51 PM 89.1 °F 87.3 °F 55.9 °F 32% 29.80 in 10.0 mi WSW 13.8 mph - N/A   Mostly Cloudy
6:51 PM 87.1 °F 86.1 °F 57.9 °F 37% 29.79 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
7:51 PM 84.9 °F 84.8 °F 60.1 °F 43% 29.81 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
8:51 PM 82.9 °F 83.7 °F 62.1 °F 49% 29.82 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
9:51 PM 81.0 °F 81.9 °F 62.1 °F 52% 29.84 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
10:51 PM 79.0 °F - 62.1 °F 56% 29.82 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
11:51 PM 78.1 °F - 63.0 °F 60% 29.85 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds