Weather History for Great Falls, MT

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Friday, December 6, 2013

  Actual Average Record
Temperature  
Mean Temperature -18 °F 26 °F  
Max Temperature -10 °F 35 °F 61 °F (1987)
Min Temperature -26 °F 17 °F -28 °F (2013)
Degree Days  
Heating Degree Days 83 39  
Month to date heating degree days 364 231  
Since 1 July heating degree days 2164 2200  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 449 298  
Moisture  
Dew Point -25 °F    
Average Humidity 77    
Maximum Humidity 90    
Minimum Humidity 63    
Precipitation  
Precipitation T in 0.02 in 0.46 in (1971)
Month to date precipitation 0.54 0.11  
Year to date precipitation 11.38 14.31  
Snow  
Snow T in 0.30 in 5.00 in (1971)
Month to date snowfall 6.1 1.7  
Since 1 July snowfall 15.8 15.4  
Snow Depth 4.00 in    
Sea Level Pressure  
Sea Level Pressure 30.61 in    
Wind  
Wind Speed 5 mph (SW)    
Max Wind Speed 10 mph    
Max Gust Speed 10 mph    
Visibility 8 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 06, 2013 Rise Set
Actual Time 7:58 AM MST 4:34 PM MST
Civil Twilight 7:22 AM MST 5:10 PM MST
Nautical Twilight 6:44 AM MST 5:49 PM MST
Astronomical Twilight 6:06 AM MST 6:26 PM MST
Moon 10:56 AM MST (12/6) 9:22 PM MST (12/6)
Length of Visible Light 9h 47m
Length of Day
8h 36m
Waxing Crescent, 20% of the Moon is Illuminated
Dec 6
Waxing Crescent
Dec 9
First Quarter
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:10 AM -14.8 °F -27.2 °F -18.4 °F 84% 30.35 in 4.0 mi North 4.6 mph - 0.00 in Snow Light Snow
12:53 AM -18.0 °F - -22.0 °F 82% 30.70 in 7.0 mi Calm Calm - 0.00 in   Mostly Cloudy
1:17 AM -20.2 °F - -23.8 °F 83% 30.35 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 AM -18.0 °F -28.5 °F -22.0 °F 82% 30.70 in 2.0 mi WSW 3.5 mph - 0.00 in Snow Light Snow
2:08 AM -16.6 °F -29.3 °F -20.2 °F 84% 30.36 in 7.0 mi SSW 4.6 mph - 0.00 in   Overcast
2:31 AM -20.2 °F -35.5 °F -23.8 °F 83% 30.36 in 10.0 mi SSW 5.8 mph - 0.00 in   Scattered Clouds
2:53 AM -22.0 °F -37.7 °F -25.1 °F 86% 30.73 in 10.0 mi WSW 5.8 mph - 0.00 in   Clear
3:40 AM -20.2 °F -38.8 °F -25.6 °F 76% 30.36 in 5.0 mi SW 8.1 mph - N/A   Haze
3:53 AM -20.9 °F -39.7 °F -24.0 °F 86% 30.73 in 3.0 mi SSW 8.1 mph - 0.00 in Snow Light Snow
4:11 AM -23.8 °F -43.2 °F -27.4 °F 83% 30.36 in 10.0 mi SW 8.1 mph - 0.00 in   Scattered Clouds
4:53 AM -23.1 °F -42.3 °F -25.1 °F 90% 30.74 in 10.0 mi SSW 8.1 mph - 0.00 in   Mostly Cloudy
5:01 AM -23.8 °F -43.2 °F -25.6 °F 91% 30.36 in 8.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
5:18 AM -23.8 °F -43.2 °F -27.4 °F 83% 30.36 in 7.0 mi SSW 8.1 mph - N/A   Scattered Clouds
5:41 AM -23.8 °F -41.6 °F -27.4 °F 83% 30.37 in 9.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
5:53 AM -24.0 °F -43.4 °F -26.0 °F 90% 30.76 in 6.0 mi SSW 8.1 mph - N/A   Overcast
6:15 AM -22.0 °F -41.0 °F -25.6 °F 83% 30.37 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
6:53 AM -25.1 °F -43.1 °F -27.0 °F 90% 30.76 in 10.0 mi SW 6.9 mph - N/A   Clear
7:21 AM -23.8 °F -43.2 °F -27.4 °F 83% 30.38 in 5.0 mi SW 8.1 mph - 0.00 in Snow Light Snow
7:53 AM -25.1 °F -46.1 °F -27.9 °F 86% 30.78 in 9.0 mi WSW 9.2 mph - 0.00 in   Clear
8:53 AM -24.0 °F -43.4 °F -27.0 °F 86% 30.79 in 10.0 mi SW 8.1 mph - N/A   Clear
9:53 AM -18.0 °F -33.0 °F -22.0 °F 82% 30.79 in 8.0 mi SSW 5.8 mph - N/A   Partly Cloudy
10:53 AM -15.0 °F -27.4 °F -20.0 °F 78% 30.79 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
11:53 AM -14.1 °F -26.3 °F -20.0 °F 75% 30.77 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
12:53 PM -11.9 °F -21.5 °F -18.9 °F 71% 30.77 in 10.0 mi West 3.5 mph - N/A   Clear
1:53 PM -9.9 °F - -18.9 °F 65% 30.75 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM -11.9 °F -21.5 °F -20.0 °F 67% 30.76 in 10.0 mi WSW 3.5 mph - N/A   Clear
3:53 PM -13.0 °F - -20.9 °F 68% 30.76 in 10.0 mi Calm Calm - N/A   Clear
4:53 PM -20.0 °F - -25.1 °F 78% 30.79 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM -22.0 °F -33.0 °F -24.0 °F 90% 30.81 in 10.0 mi West 3.5 mph - N/A   Clear
6:53 PM -25.1 °F -36.5 °F -27.0 °F 90% 30.82 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
7:50 PM -22.0 °F -35.6 °F -23.8 °F 91% 30.39 in 5.0 mi SW 4.6 mph - N/A   Scattered Clouds
7:53 PM -22.0 °F -35.6 °F -24.0 °F 90% 30.82 in 5.0 mi SW 4.6 mph - N/A   Partly Cloudy
8:14 PM -23.8 °F -37.7 °F -25.6 °F 91% 30.39 in 9.0 mi SW 4.6 mph - N/A   Mostly Cloudy
8:36 PM -23.8 °F -37.7 °F -25.6 °F 91% 30.39 in 8.0 mi SSW 4.6 mph - N/A   Overcast
8:47 PM -20.2 °F -35.5 °F -25.6 °F 76% 30.38 in 8.0 mi SW 5.8 mph - N/A   Scattered Clouds
8:53 PM -23.1 °F -38.9 °F -27.9 °F 78% 30.81 in 10.0 mi SSW 5.8 mph - N/A   Scattered Clouds
9:53 PM -26.0 °F -40.2 °F -29.0 °F 85% 30.79 in 10.0 mi SW 4.6 mph - N/A   Clear
10:53 PM -27.0 °F -43.7 °F -32.1 °F 77% 30.77 in 10.0 mi SW 5.8 mph - N/A   Clear
11:53 PM -26.0 °F -42.4 °F -32.1 °F 73% 30.76 in 10.0 mi SW 5.8 mph - N/A   Clear