Weather History for St. Louis, MO

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Saturday, July 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 85 °F 80 °F  
Max Temperature 93 °F 89 °F 110 °F (1934)
Min Temperature 77 °F 71 °F 58 °F (1929)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 1 5  
Since 1 July heating degree days 0 0  
Cooling Degree Days 20 15  
Month to date cooling degree days 297 300  
Year to date cooling degree days 845 808  
Since 1 June cooling degree days 634 634  
Growing Degree Days 35 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 62    
Maximum Humidity 74    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.13 in 3.70 in (1949)
Month to date precipitation 1.77 2.70  
Year to date precipitation 31.84 23.35  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2013)
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 8 mph (West)    
Max Wind Speed 23 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jul. 20, 2013 Rise Set
Actual Time 5:52 AM CDT 8:22 PM CDT
Civil Twilight 5:22 AM CDT 8:52 PM CDT
Nautical Twilight 4:44 AM CDT 9:30 PM CDT
Astronomical Twilight 4:02 AM CDT 10:12 PM CDT
Moon 6:26 PM CDT (7/20) 3:32 AM CDT (7/20)
Length of Visible Light 15h 30m
Length of Day
14h 29m
Waxing Gibbous, 94% of the Moon is Illuminated
Jul 20
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

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 82.0 °F 85.5 °F 69.1 °F 65% 29.87 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
1:51 AM 81.0 °F 84.4 °F 70.0 °F 69% 29.86 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
2:51 AM 80.1 °F 83.2 °F 70.0 °F 71% 29.86 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
3:51 AM 79.0 °F - 69.1 °F 72% 29.85 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
4:51 AM 78.1 °F - 69.1 °F 74% 29.84 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
5:51 AM 78.1 °F - 69.1 °F 74% 29.85 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
6:51 AM 79.0 °F - 69.1 °F 72% 29.85 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds
7:51 AM 80.1 °F 82.9 °F 69.1 °F 69% 29.86 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
8:51 AM 84.0 °F 87.8 °F 69.1 °F 61% 29.86 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
9:51 AM 86.0 °F 90.7 °F 70.0 °F 59% 29.86 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
10:51 AM 89.1 °F 95.0 °F 71.1 °F 55% 29.86 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
11:51 AM 89.1 °F 96.0 °F 72.0 °F 57% 29.85 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
12:51 PM 89.1 °F 95.0 °F 71.1 °F 55% 29.86 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
1:51 PM 91.9 °F 98.4 °F 71.1 °F 50% 29.85 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
2:51 PM 93.0 °F 100.7 °F 72.0 °F 50% 29.82 in 10.0 mi NW 12.7 mph - N/A   Mostly Cloudy
3:51 PM 89.1 °F 97.0 °F 73.0 °F 59% 29.79 in 10.0 mi NNW 12.7 mph 26.5 mph N/A   Mostly Cloudy
4:51 PM 90.0 °F 96.9 °F 72.0 °F 55% 29.82 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
5:51 PM 89.1 °F 94.1 °F 70.0 °F 53% 29.80 in 10.0 mi North 12.7 mph - N/A   Overcast
6:51 PM 87.1 °F 90.6 °F 68.0 °F 53% 29.85 in 10.0 mi ENE 9.2 mph - N/A   Overcast
7:51 PM 84.9 °F 88.8 °F 69.1 °F 59% 29.87 in 10.0 mi SE 15.0 mph - N/A   Overcast
8:51 PM 79.0 °F - 66.9 °F 66% 29.90 in 10.0 mi SSE 12.7 mph - N/A   Overcast
9:51 PM 78.1 °F - 66.0 °F 66% 29.88 in 10.0 mi South 6.9 mph - N/A   Overcast
10:51 PM 77.0 °F - 66.9 °F 71% 29.88 in 10.0 mi SW 5.8 mph - N/A   Overcast
11:51 PM 77.0 °F - 66.9 °F 71% 29.88 in 10.0 mi West 4.6 mph - N/A   Overcast