Weather History for Great Falls, MT

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Monday, December 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 29 °F 25 °F  
Max Temperature 35 °F 35 °F 67 °F (1939)
Min Temperature 23 °F 16 °F -22 °F (2000)
Degree Days  
Heating Degree Days 36 40  
Month to date heating degree days 304 390  
Since 1 July heating degree days 1921 2359  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture  
Dew Point 17 °F    
Average Humidity 62    
Maximum Humidity 68    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.02 in 0.34 in (1933)
Month to date precipitation 0.22 0.18  
Year to date precipitation 12.80 14.38  
Snow  
Snow 0.00 in 0.30 in 4.00 in (1933)
Month to date snowfall 5.7 2.9  
Since 1 July snowfall 27.4 16.6  
Snow Depth 3.00 in    
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 14 mph (WSW)    
Max Wind Speed 26 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

Dec. 10, 2012 Rise Set
Actual Time 8:02 AM MST 4:34 PM MST
Civil Twilight 7:27 AM MST 5:10 PM MST
Nautical Twilight 6:48 AM MST 5:49 PM MST
Astronomical Twilight 6:10 AM MST 6:26 PM MST
Moon 4:42 AM MST (12/10) 2:32 PM MST (12/10)
Length of Visible Light 9h 43m
Length of Day
8h 31m
Waning Crescent, 10% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 28.0 °F 15.3 °F 15.1 °F 58% 29.96 in 10.0 mi SW 18.4 mph - N/A   Partly Cloudy
1:53 AM 27.0 °F 12.8 °F 15.1 °F 61% 29.95 in 10.0 mi SW 21.9 mph - N/A   Clear
2:53 AM 27.0 °F 14.3 °F 15.1 °F 61% 29.97 in 10.0 mi SW 17.3 mph - N/A   Clear
3:53 AM 28.0 °F 15.7 °F 16.0 °F 61% 29.96 in 10.0 mi SW 17.3 mph - N/A   Overcast
4:53 AM 30.0 °F 20.0 °F 18.0 °F 61% 29.96 in 10.0 mi WSW 12.7 mph - N/A   Overcast
5:53 AM 30.2 °F 19.8 °F 19.4 °F 64% 29.84 in 10.0 mi WSW 13.8 mph - N/A   Overcast
6:53 AM 32.0 °F 24.2 °F 19.0 °F 59% 30.01 in 10.0 mi WNW 9.2 mph - N/A   Overcast
7:53 AM 30.9 °F 23.5 °F 17.1 °F 57% 30.02 in 10.0 mi West 8.1 mph - N/A   Overcast
8:53 AM 30.9 °F 20.2 °F 17.1 °F 57% 30.03 in 10.0 mi West 15.0 mph - N/A   Overcast
9:53 AM 30.0 °F 20.0 °F 18.0 °F 61% 30.05 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
10:53 AM 32.0 °F 21.6 °F 19.0 °F 59% 30.04 in 10.0 mi West 15.0 mph - N/A   Clear
11:53 AM 34.0 °F 23.0 °F 19.9 °F 56% 30.02 in 10.0 mi West 18.4 mph - N/A   Clear
12:53 PM 35.1 °F 24.5 °F 21.0 °F 57% 30.01 in 10.0 mi West 18.4 mph - N/A   Clear
1:53 PM 35.1 °F 25.2 °F 21.0 °F 57% 30.01 in 10.0 mi West 16.1 mph - N/A   Clear
2:53 PM 33.1 °F 23.9 °F 19.9 °F 59% 30.00 in 10.0 mi West 12.7 mph - N/A   Clear
3:53 PM 30.9 °F 21.2 °F 19.0 °F 61% 30.02 in 10.0 mi WSW 12.7 mph - N/A   Clear
4:53 PM 27.0 °F 16.1 °F 16.0 °F 63% 30.03 in 10.0 mi WSW 12.7 mph - N/A   Clear
5:53 PM 28.0 °F 18.1 °F 16.0 °F 61% 30.03 in 10.0 mi WSW 11.5 mph - N/A   Overcast
6:53 PM 25.0 °F 14.8 °F 15.1 °F 66% 30.03 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
7:53 PM 23.0 °F 10.1 °F 14.0 °F 68% 30.04 in 10.0 mi SSW 15.0 mph - N/A   Clear
8:53 PM 23.0 °F 10.1 °F 12.9 °F 65% 30.03 in 10.0 mi SSW 15.0 mph - N/A   Clear
9:53 PM 24.1 °F 12.0 °F 14.0 °F 65% 30.01 in 10.0 mi SSW 13.8 mph - N/A   Clear
10:53 PM 24.1 °F 12.0 °F 14.0 °F 65% 29.99 in 10.0 mi SSW 13.8 mph - N/A   Clear
11:53 PM 26.1 °F 14.5 °F 16.0 °F 66% 29.96 in 10.0 mi SSW 13.8 mph - N/A   Clear