Weather History for St. Charles, MO

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Monday, February 18, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 44 °F 37 °F  
Max Temperature 55 °F 46 °F 74 °F (1971)
Min Temperature 32 °F 28 °F -9 °F (1936)
Degree Days  
Heating Degree Days 22 28  
Month to date heating degree days 543  
Since 1 July heating degree days 3337  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 38 °F    
Average Humidity 78    
Maximum Humidity 93    
Minimum Humidity 60    
Precipitation  
Precipitation 0.21 in 0.08 in 2.24 in (2000)
Month to date precipitation 1.44  
Year to date precipitation 3.84  
Snow  
Snow 0.00 in 0.20 in 1.70 in (1934)
Month to date snowfall 2.9  
Since 1 July snowfall 13.6  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.72 in    
Wind  
Wind Speed 15 mph (SSW)    
Max Wind Speed 26 mph    
Max Gust Speed 44 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 18, 2013 Rise Set
Actual Time 6:48 AM CST 5:42 PM CST
Civil Twilight 6:21 AM CST 6:10 PM CST
Nautical Twilight 5:50 AM CST 6:41 PM CST
Astronomical Twilight 5:19 AM CST 7:12 PM CST
Moon 11:30 AM CST (2/18) 1:27 AM CST (2/18)
Length of Visible Light 11h 48m
Length of Day
10h 53m
First Quarter, 58% of the Moon is Illuminated
Feb 18
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 37.0 °F 31.0 °F 28.9 °F 73% 29.90 in 10.0 mi ESE 8.1 mph - N/A   Clear
1:54 AM 33.1 °F 24.9 °F 27.0 °F 78% 29.88 in 10.0 mi ESE 10.4 mph - N/A   Clear
2:54 AM 32.0 °F 25.6 °F 28.0 °F 85% 29.86 in 10.0 mi East 6.9 mph - N/A   Clear
3:54 AM 32.0 °F 25.6 °F 28.0 °F 85% 29.83 in 10.0 mi East 6.9 mph - N/A   Clear
4:54 AM 33.1 °F 26.1 °F 28.9 °F 85% 29.82 in 10.0 mi East 8.1 mph - N/A   Clear
6:54 AM 37.9 °F 30.9 °F 33.1 °F 83% 29.80 in 10.0 mi SE 10.4 mph - N/A   Clear
7:54 AM 42.1 °F 37.1 °F 36.0 °F 79% 29.78 in 10.0 mi East 8.1 mph - N/A   Clear
8:54 AM 50.0 °F - 39.0 °F 66% 29.77 in 10.0 mi South 9.2 mph - N/A   Clear
9:54 AM 55.9 °F - 42.1 °F 60% 29.75 in 10.0 mi SSW 25.3 mph 38.0 mph N/A   Clear
10:54 AM 55.9 °F - 43.0 °F 62% 29.74 in 10.0 mi SSW 19.6 mph 27.6 mph N/A   Overcast
11:54 AM 55.0 °F - 44.1 °F 67% 29.72 in 10.0 mi South 23.0 mph 32.2 mph N/A   Overcast
12:42 PM 55.4 °F - 44.6 °F 67% 29.70 in 10.0 mi South 20.7 mph 36.8 mph N/A   Overcast
12:54 PM 55.0 °F - 45.0 °F 69% 29.69 in 10.0 mi South 20.7 mph 28.8 mph N/A   Overcast
1:54 PM 55.0 °F - 45.0 °F 69% 29.65 in 10.0 mi South 19.6 mph 27.6 mph N/A   Overcast
2:54 PM 54.0 °F - 45.0 °F 72% 29.60 in 10.0 mi South 20.7 mph 32.2 mph 0.00 in   Overcast
3:54 PM 53.1 °F - 45.0 °F 74% 29.57 in 10.0 mi South 23.0 mph 31.1 mph 0.00 in Rain Light Rain
4:38 PM 50.0 °F - 46.4 °F 87% 29.55 in 6.0 mi South 19.6 mph 26.5 mph 0.03 in Rain Light Rain
4:54 PM 50.0 °F - 46.9 °F 89% 29.55 in 10.0 mi South 16.1 mph - 0.04 in   Overcast
5:13 PM 51.8 °F - 46.4 °F 82% 29.54 in 10.0 mi South 18.4 mph - 0.00 in Rain Light Rain
5:54 PM 50.0 °F - 48.0 °F 93% 29.55 in 4.0 mi South 20.7 mph - 0.06 in Rain Rain
6:13 PM 50.0 °F - 46.4 °F 87% 29.56 in 6.0 mi SSW 21.9 mph 27.6 mph 0.02 in Rain Light Rain
6:19 PM 48.2 °F - 46.4 °F 93% 29.60 in 2.5 mi WNW 23.0 mph 38.0 mph 0.08 in Rain Heavy Rain
6:25 PM 48.2 °F - 44.6 °F 87% 29.61 in 3.0 mi WNW 23.0 mph 38.0 mph 0.10 in Rain Rain
6:32 PM 46.4 °F 38.7 °F 42.8 °F 87% 29.61 in 4.0 mi WNW 20.7 mph 29.9 mph 0.10 in Rain Light Rain
6:54 PM 44.1 °F 35.2 °F 41.0 °F 89% 29.64 in 10.0 mi NW 23.0 mph 29.9 mph 0.10 in Rain Light Rain
7:30 PM 39.2 °F 28.0 °F 33.8 °F 81% 29.70 in 10.0 mi NW 26.5 mph 43.7 mph 0.00 in   Overcast
7:54 PM 39.0 °F 28.8 °F 34.0 °F 82% 29.73 in 10.0 mi NW 21.9 mph 32.2 mph 0.00 in   Overcast
8:54 PM 39.0 °F 28.5 °F 34.0 °F 82% 29.78 in 10.0 mi WNW 23.0 mph 26.5 mph N/A   Overcast
9:54 PM 36.0 °F 25.3 °F 27.0 °F 70% 29.83 in 10.0 mi NW 19.6 mph 29.9 mph 0.01 in   Overcast
10:51 PM 33.8 °F 24.8 °F 24.8 °F 70% 29.87 in 10.0 mi WNW 12.7 mph 21.9 mph N/A   Overcast
10:54 PM 34.0 °F 24.2 °F 24.1 °F 67% 29.88 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Overcast
11:54 PM 33.1 °F 20.1 °F 23.0 °F 66% 29.91 in 10.0 mi West 25.3 mph 34.5 mph N/A   Overcast