Weather History for St. Louis, MO

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Tuesday, September 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 83 °F 75 °F  
Max Temperature 92 °F 85 °F 104 °F (1954)
Min Temperature 74 °F 66 °F 42 °F (1974)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 1  
Cooling Degree Days 18 10  
Month to date cooling degree days 61 43  
Year to date cooling degree days 2059 1442  
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 68 °F    
Average Humidity 63    
Maximum Humidity 87    
Minimum Humidity 38    
Precipitation  
Precipitation 0.01 in 0.10 in 3.20 in (1885)
Month to date precipitation 0.69 0.41  
Year to date precipitation 24.06 28.16  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2012)
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 29.86 in    
Wind  
Wind Speed 2 mph (WSW)    
Max Wind Speed 9 mph    
Max Gust Speed 12 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 04, 2012 Rise Set
Actual Time 6:33 AM CDT 7:26 PM CDT
Civil Twilight 6:06 AM CDT 7:53 PM CDT
Nautical Twilight 5:34 AM CDT 8:25 PM CDT
Astronomical Twilight 5:01 AM CDT 8:58 PM CDT
Moon 9:22 PM CDT (9/4) 10:37 AM CDT (9/4)
Length of Visible Light 13h 46m
Length of Day
12h 52m
Waning Gibbous, 83% of the Moon is Illuminated
Sep 4
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

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 75.9 °F - 71.1 °F 85% 29.88 in 10.0 mi Calm Calm - N/A   Clear
1:51 AM 75.0 °F - 71.1 °F 87% 29.88 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
2:51 AM 75.0 °F - 70.0 °F 84% 29.87 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:51 AM 75.0 °F - 71.1 °F 87% 29.86 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:51 AM 75.0 °F - 70.0 °F 84% 29.85 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
5:51 AM 73.9 °F - 70.0 °F 87% 29.85 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
6:51 AM 73.9 °F - 70.0 °F 87% 29.88 in 10.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
7:51 AM 78.1 °F - 71.1 °F 79% 29.89 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:51 AM 81.0 °F 84.9 °F 71.1 °F 72% 29.90 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:51 AM 80.1 °F 82.9 °F 69.1 °F 69% 29.89 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
10:51 AM 79.0 °F - 70.0 °F 74% 29.90 in 9.0 mi NNW 6.9 mph - 0.00 in Rain Light Rain
11:51 AM 84.0 °F 87.0 °F 68.0 °F 58% 29.88 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
12:51 PM 87.1 °F 88.9 °F 64.9 °F 48% 29.87 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:51 PM 88.0 °F 89.3 °F 64.0 °F 45% 29.84 in 10.0 mi ENE 5.8 mph - N/A   Mostly Cloudy
2:51 PM 89.1 °F 90.3 °F 64.0 °F 43% 29.83 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
3:51 PM 91.0 °F 92.6 °F 64.0 °F 41% 29.83 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
4:51 PM 91.4 °F 92.1 °F 62.6 °F 38% 29.87 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
5:51 PM 90.0 °F 90.6 °F 63.0 °F 40% 29.83 in 10.0 mi SW 5.8 mph - N/A   Scattered Clouds
6:51 PM 88.0 °F 90.3 °F 66.0 °F 48% 29.82 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
7:51 PM 86.0 °F 88.2 °F 66.0 °F 51% 29.82 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:51 PM 82.0 °F 84.5 °F 66.9 °F 60% 29.82 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:51 PM 80.1 °F 82.9 °F 69.1 °F 69% 29.82 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:51 PM 79.0 °F - 68.0 °F 69% 29.82 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:51 PM 80.1 °F 82.3 °F 66.9 °F 64% 29.81 in 10.0 mi Calm Calm - N/A   Partly Cloudy