Weather History for St. Charles, MO

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Tuesday, May 14, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 72 °F 66 °F  
Max Temperature 93 °F 76 °F 93 °F (2013)
Min Temperature 52 °F 57 °F 37 °F (1920)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 49  
Since 1 July heating degree days 4505  
Cooling Degree Days 8 4  
Month to date cooling degree days 38  
Year to date cooling degree days 84  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 47    
Maximum Humidity 83    
Minimum Humidity 21    
Precipitation  
Precipitation 0.00 in 0.15 in 3.33 in (1886)
Month to date precipitation 2.04  
Year to date precipitation 13.69  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2013)
Month to date snowfall 0.0  
Since 1 July snowfall 17.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 14, 2013 Rise Set
Actual Time 5:49 AM CDT 8:06 PM CDT
Civil Twilight 5:19 AM CDT 8:36 PM CDT
Nautical Twilight 4:43 AM CDT 9:13 PM CDT
Astronomical Twilight 4:02 AM CDT 9:54 PM CDT
Moon 9:29 AM CDT (5/14) 11:54 PM CDT (5/14)
Length of Visible Light 15h 17m
Length of Day
14h 17m
Waxing Crescent, 19% of the Moon is Illuminated
May 14
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
12:54 AM 59.0 °F - 45.0 °F 60% 29.99 in 10.0 mi South 5.8 mph - N/A   Clear
1:54 AM 55.9 °F - 46.9 °F 72% 29.97 in 10.0 mi East 3.5 mph - N/A   Clear
2:54 AM 55.0 °F - 46.9 °F 74% 29.95 in 10.0 mi SE 4.6 mph - N/A   Clear
3:54 AM 53.1 °F - 46.9 °F 80% 29.95 in 10.0 mi East 4.6 mph - N/A   Clear
4:54 AM 52.0 °F - 46.9 °F 83% 29.94 in 10.0 mi East 5.8 mph - N/A   Clear
5:54 AM 52.0 °F - 46.9 °F 83% 29.93 in 10.0 mi East 5.8 mph - N/A   Clear
6:54 AM 55.0 °F - 50.0 °F 83% 29.92 in 10.0 mi East 4.6 mph - N/A   Clear
7:54 AM 62.1 °F - 52.0 °F 70% 29.91 in 10.0 mi South 6.9 mph - N/A   Clear
8:54 AM 69.1 °F - 55.0 °F 61% 29.90 in 10.0 mi SSW 6.9 mph - N/A   Clear
9:54 AM 75.9 °F - 53.1 °F 45% 29.88 in 10.0 mi SW 12.7 mph 18.4 mph N/A   Clear
10:54 AM 80.1 °F 79.9 °F 53.1 °F 39% 29.87 in 10.0 mi West 12.7 mph 20.7 mph N/A   Clear
11:54 AM 82.9 °F 81.9 °F 54.0 °F 37% 29.87 in 10.0 mi WSW 13.8 mph 19.6 mph N/A   Clear
12:54 PM 87.1 °F 85.3 °F 55.0 °F 33% 29.85 in 10.0 mi WSW 12.7 mph 18.4 mph N/A   Clear
1:54 PM 88.0 °F 85.9 °F 54.0 °F 31% 29.83 in 10.0 mi WSW 17.3 mph 21.9 mph N/A   Clear
2:54 PM 91.0 °F 88.5 °F 53.1 °F 27% 29.82 in 10.0 mi SW 18.4 mph - N/A   Clear
3:54 PM 93.0 °F - 52.0 °F 25% 29.81 in 10.0 mi WSW 19.6 mph 24.2 mph N/A   Clear
4:54 PM 93.0 °F - 51.1 °F 24% 29.80 in 10.0 mi WSW 13.8 mph 25.3 mph N/A   Clear
5:54 PM 93.0 °F - 48.0 °F 21% 29.78 in 10.0 mi WSW 16.1 mph 24.2 mph N/A   Clear
6:54 PM 91.0 °F - 48.0 °F 23% 29.77 in 10.0 mi WSW 11.5 mph - N/A   Clear
7:54 PM 84.9 °F - 51.1 °F 31% 29.78 in 10.0 mi SW 9.2 mph - N/A   Clear
8:54 PM 82.9 °F - 50.0 °F 32% 29.80 in 10.0 mi WSW 10.4 mph - N/A   Clear
9:54 PM 81.0 °F - 50.0 °F 34% 29.82 in 10.0 mi WSW 11.5 mph - N/A   Clear
10:54 PM 82.0 °F - 48.0 °F 30% 29.82 in 10.0 mi WSW 13.8 mph 20.7 mph N/A   Clear
11:54 PM 79.0 °F - 48.0 °F 34% 29.84 in 10.0 mi WSW 11.5 mph 19.6 mph N/A   Clear