Weather History for St. Charles, MO

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Tuesday, July 23, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 82 °F 80 °F  
Max Temperature 91 °F 89 °F 108 °F (1934)
Min Temperature 72 °F 71 °F 52 °F (1947)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0  
Since 1 June heating degree days 5  
Since 1 July heating degree days 0  
Cooling Degree Days 17 15  
Month to date cooling degree days 345  
Year to date cooling degree days 853  
Since 1 June cooling degree days 679  
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 69    
Maximum Humidity 91    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.14 in 2.05 in (1973)
Month to date precipitation 3.09  
Year to date precipitation 23.74  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2013)
Month to date snowfall 0.0  
Since 1 June snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 6 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 23, 2013 Rise Set
Actual Time 5:55 AM CDT 8:20 PM CDT
Civil Twilight 5:24 AM CDT 8:51 PM CDT
Nautical Twilight 4:46 AM CDT 9:28 PM CDT
Astronomical Twilight 4:05 AM CDT 10:10 PM CDT
Moon 8:50 PM CDT (7/23) 7:02 AM CDT (7/23)
Length of Visible Light 15h 26m
Length of Day
14h 25m
Full, 99% of the Moon is Illuminated
Jul 23
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter
Aug 20
Full

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 79.0 °F - 75.0 °F 88% 29.81 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:54 AM 78.1 °F - 73.9 °F 87% 29.81 in 8.0 mi WNW 3.5 mph - N/A   Clear
2:54 AM 79.0 °F - 75.0 °F 88% 29.81 in 8.0 mi West 4.6 mph - N/A   Partly Cloudy
3:54 AM 77.0 °F - 73.0 °F 88% 29.73 in 10.0 mi South 9.2 mph - N/A   Clear
4:54 AM 75.9 °F - 72.0 °F 87% 29.73 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 75.0 °F - 72.0 °F 90% 29.77 in 9.0 mi West 3.5 mph - N/A   Clear
6:54 AM 75.9 °F - 73.0 °F 91% 29.79 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 79.0 °F - 72.0 °F 79% 29.81 in 10.0 mi West 6.9 mph - N/A   Clear
8:08 AM 78.8 °F - 71.6 °F 78% 29.83 in 1.8 mi West 5.8 mph - N/A   Haze
8:22 AM 78.8 °F - 71.6 °F 78% 29.83 in 10.0 mi WSW 5.8 mph - N/A   Clear
8:54 AM 81.0 °F 84.9 °F 71.1 °F 72% 29.81 in 10.0 mi WSW 8.1 mph - N/A   Clear
9:54 AM 84.0 °F 87.8 °F 69.1 °F 61% 29.82 in 10.0 mi West 11.5 mph - N/A   Clear
10:54 AM 86.0 °F 91.5 °F 71.1 °F 61% 29.83 in 10.0 mi WNW 13.8 mph - N/A   Clear
11:54 AM 87.1 °F 92.0 °F 70.0 °F 57% 29.83 in 10.0 mi WNW 9.2 mph - N/A   Clear
12:54 PM 89.1 °F 94.1 °F 70.0 °F 53% 29.83 in 10.0 mi NNW 11.5 mph - N/A   Clear
1:54 PM 89.1 °F 93.7 °F 69.1 °F 52% 29.82 in 10.0 mi NW 8.1 mph - N/A   Clear
2:54 PM 91.0 °F 95.2 °F 68.0 °F 47% 29.81 in 10.0 mi North 11.5 mph - N/A   Clear
3:54 PM 90.0 °F 93.6 °F 68.0 °F 48% 29.81 in 10.0 mi North 8.1 mph - N/A   Clear
4:54 PM 90.0 °F 94.5 °F 69.1 °F 50% 29.79 in 10.0 mi North 11.5 mph - N/A   Clear
5:54 PM 88.0 °F 90.3 °F 66.0 °F 48% 29.79 in 10.0 mi North 12.7 mph - N/A   Clear
6:54 PM 84.0 °F 86.3 °F 66.0 °F 55% 29.82 in 10.0 mi North 8.1 mph - N/A   Clear
7:54 PM 80.1 °F 82.1 °F 66.0 °F 62% 29.83 in 10.0 mi NNE 11.5 mph - N/A   Clear
8:54 PM 78.1 °F - 66.0 °F 66% 29.85 in 10.0 mi North 6.9 mph - N/A   Clear
9:54 PM 75.9 °F - 64.9 °F 69% 29.88 in 10.0 mi NNE 10.4 mph - N/A   Clear
10:54 PM 73.9 °F - 63.0 °F 68% 29.90 in 10.0 mi NNE 9.2 mph - N/A   Clear
11:54 PM 72.0 °F - 62.1 °F 71% 29.89 in 10.0 mi NNE 8.1 mph 17.3 mph N/A   Clear