Weather History for St. Charles, MO

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Monday, May 19, 2014

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 63 °F 68 °F  
Max Temperature 78 °F 77 °F 94 °F (1996)
Min Temperature 48 °F 58 °F 40 °F (1894)
Degree Days  
Heating Degree Days 2 2  
Month to date heating degree days 60  
Since 1 July heating degree days 4516  
Cooling Degree Days 0 5  
Month to date cooling degree days 59  
Year to date cooling degree days 105  
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 63    
Maximum Humidity 80    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.15 in 2.14 in (1915)
Month to date precipitation 2.80  
Year to date precipitation 14.45  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2012)
Month to date snowfall 0.0  
Since 1 July snowfall 17.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 12 mph (SE)    
Max Wind Speed 25 mph    
Max Gust Speed 32 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 19, 2014 Rise Set
Actual Time 5:45 AM CDT 8:11 PM CDT
Civil Twilight 5:15 AM CDT 8:41 PM CDT
Nautical Twilight 4:37 AM CDT 9:19 PM CDT
Astronomical Twilight 3:56 AM CDT 10:01 PM CDT
Moon No Moon Rise 10:42 AM CDT
Length of Visible Light 15h 26m
Length of Day
14h 25m
Waning Gibbous, 71% of the Moon is Illuminated
May 19
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 12
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 51.1 °F 42.1 °F 71% 30.15 in 10.0 mi East 6.9 mph - N/A   Clear
1:54 AM 50.0 °F 42.1 °F 74% 30.15 in 10.0 mi East 5.8 mph - N/A   Clear
2:54 AM 48.9 °F 43.0 °F 80% 30.14 in 10.0 mi East 9.2 mph - N/A   Clear
3:54 AM 51.1 °F 44.1 °F 77% 30.15 in 10.0 mi East 6.9 mph - N/A   Clear
4:54 AM 53.1 °F 44.1 °F 71% 30.16 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
5:54 AM 53.1 °F 44.1 °F 71% 30.16 in 10.0 mi East 9.2 mph - N/A   Clear
6:54 AM 54.0 °F 45.0 °F 72% 30.17 in 10.0 mi East 6.9 mph - N/A   Clear
8:54 AM 62.1 °F 45.0 °F 53% 30.16 in 10.0 mi SE 13.8 mph - N/A   Mostly Cloudy
9:54 AM 63.0 °F 45.0 °F 52% 30.14 in 10.0 mi SE 13.8 mph 21.9 mph N/A   Overcast
10:54 AM 64.0 °F 46.0 °F 52% 30.12 in 10.0 mi SE 17.3 mph - N/A   Overcast
11:54 AM 68.0 °F 50.0 °F 52% 30.10 in 10.0 mi SE 20.7 mph - N/A   Overcast
1:54 PM 73.9 °F 55.9 °F 53% 30.02 in 10.0 mi SSE 17.3 mph - N/A   Partly Cloudy
2:54 PM 77.0 °F 57.9 °F 52% 29.98 in 10.0 mi SE 21.9 mph 28.8 mph N/A   Clear
3:54 PM 78.1 °F 60.1 °F 54% 29.94 in 10.0 mi South 24.2 mph 32.2 mph N/A   Mostly Cloudy
4:54 PM 75.9 °F 59.0 °F 56% 29.91 in 10.0 mi SSE 25.3 mph 32.2 mph N/A   Scattered Clouds
5:54 PM 75.9 °F 60.1 °F 58% 29.90 in 10.0 mi South 24.2 mph 31.1 mph N/A   Scattered Clouds
6:54 PM 75.9 °F 59.0 °F 56% 29.86 in 10.0 mi South 20.7 mph 31.1 mph N/A   Clear
7:54 PM 75.0 °F 59.0 °F 57% 29.85 in 10.0 mi South 15.0 mph - N/A   Clear
8:54 PM 73.9 °F 59.0 °F 59% 29.86 in 10.0 mi South 18.4 mph - N/A   Clear
9:54 PM 72.0 °F 59.0 °F 64% 29.88 in 10.0 mi South 12.7 mph - N/A   Clear
10:54 PM 70.0 °F 59.0 °F 68% 29.89 in 10.0 mi South 10.4 mph - N/A   Clear
11:54 PM 66.0 °F 57.9 °F 75% 29.91 in 10.0 mi South 6.9 mph - N/A   Clear