Weather History for Great Falls, MT

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Wednesday, December 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F 25 °F  
Max Temperature 40 °F 34 °F 60 °F (1921)
Min Temperature 27 °F 15 °F -32 °F (1922)
Degree Days  
Heating Degree Days 31 40  
Month to date heating degree days 366 470  
Since 1 July heating degree days 1983 2439  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture  
Dew Point 26 °F    
Average Humidity 72    
Maximum Humidity 84    
Minimum Humidity 59    
Precipitation  
Precipitation T in 0.01 in 0.55 in (1937)
Month to date precipitation 0.22 0.21  
Year to date precipitation 12.80 14.41  
Snow  
Snow T in 0.30 in 14.00 in (1932)
Month to date snowfall 5.7 3.4  
Since 1 July snowfall 27.4 17.1  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 29.71 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 8 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 12, 2012 Rise Set
Actual Time 8:04 AM MST 4:34 PM MST
Civil Twilight 7:28 AM MST 5:10 PM MST
Nautical Twilight 6:49 AM MST 5:49 PM MST
Astronomical Twilight 6:12 AM MST 6:26 PM MST
Moon 7:11 AM MST (12/12) 4:16 PM MST (12/12)
Length of Visible Light 9h 41m
Length of Day
8h 30m
Waning Crescent, 0% of the Moon is Illuminated
Dec 12
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 39.0 °F 31.4 °F 26.1 °F 60% 29.54 in 10.0 mi SW 12.7 mph - N/A   Overcast
1:53 AM 37.9 °F 30.9 °F 26.1 °F 62% 29.54 in 10.0 mi SSW 10.4 mph - N/A   Overcast
2:53 AM 37.0 °F 29.3 °F 28.0 °F 70% 29.55 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
3:53 AM 37.0 °F 29.8 °F 27.0 °F 67% 29.54 in 10.0 mi SSW 10.4 mph - N/A   Overcast
4:53 AM 37.9 °F 29.2 °F 28.0 °F 68% 29.55 in 10.0 mi SSW 15.0 mph - N/A   Overcast
5:53 AM 37.0 °F 29.8 °F 28.9 °F 73% 29.57 in 10.0 mi South 10.4 mph - N/A   Overcast
6:53 AM 36.0 °F 33.3 °F 28.9 °F 76% 29.59 in 10.0 mi SW 3.5 mph - N/A   Overcast
7:53 AM 35.1 °F - 27.0 °F 72% 29.61 in 10.0 mi Calm Calm - N/A   Overcast
8:53 AM 35.1 °F - 27.0 °F 72% 29.62 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 35.1 °F 32.2 °F 27.0 °F 72% 29.65 in 10.0 mi North 3.5 mph - N/A   Overcast
10:53 AM 35.1 °F 31.0 °F 26.1 °F 70% 29.68 in 10.0 mi North 4.6 mph - N/A   Overcast
11:03 AM 35.6 °F 29.9 °F 26.6 °F 70% 29.61 in 10.0 mi NNW 6.9 mph - N/A   Overcast
11:53 AM 35.1 °F 27.9 °F 27.0 °F 72% 29.70 in 10.0 mi NNW 9.2 mph - N/A   Overcast
12:44 PM 33.8 °F 25.8 °F 26.6 °F 75% 29.64 in 2.0 mi NNW 10.4 mph - N/A Snow Light Snow
12:53 PM 33.1 °F 23.9 °F 28.0 °F 82% 29.73 in 1.8 mi NW 12.7 mph - 0.00 in Snow Light Snow
1:03 PM 33.8 °F 25.3 °F 28.4 °F 81% 29.64 in 1.2 mi NNW 11.5 mph - 0.00 in Snow Light Snow
1:16 PM 33.8 °F 27.0 °F 28.4 °F 81% 29.64 in 1.8 mi NW 8.1 mph - 0.00 in Snow Light Snow
1:30 PM 33.8 °F 27.0 °F 28.4 °F 81% 29.65 in 2.5 mi NW 8.1 mph - 0.00 in Snow Light Snow
1:46 PM 33.8 °F 27.0 °F 28.4 °F 81% 29.66 in 10.0 mi NNW 8.1 mph - 0.00 in   Overcast
1:53 PM 33.1 °F 24.9 °F 28.0 °F 82% 29.75 in 10.0 mi NNW 10.4 mph - 0.00 in   Overcast
2:31 PM 32.0 °F 26.4 °F 26.6 °F 80% 29.67 in 10.0 mi North 5.8 mph - N/A   Overcast
2:50 PM 32.0 °F 27.5 °F 24.8 °F 75% 29.68 in 10.0 mi North 4.6 mph - N/A   Overcast
2:53 PM 32.0 °F 26.4 °F 24.1 °F 73% 29.78 in 10.0 mi North 5.8 mph - N/A   Overcast
3:53 PM 33.1 °F - 25.0 °F 72% 29.80 in 10.0 mi Calm Calm - N/A   Overcast
4:12 PM 32.0 °F - 24.8 °F 75% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
4:53 PM 30.9 °F 25.2 °F 24.1 °F 76% 29.83 in 10.0 mi NNW 5.8 mph - N/A   Overcast
5:53 PM 30.0 °F 26.5 °F 24.1 °F 79% 29.86 in 8.0 mi North 3.5 mph - N/A   Overcast
6:53 PM 28.9 °F 22.8 °F 23.0 °F 78% 29.88 in 8.0 mi NNW 5.8 mph - N/A   Overcast
7:11 PM 28.4 °F 22.2 °F 23.0 °F 80% 29.77 in 7.0 mi North 5.8 mph - N/A   Overcast
7:21 PM 28.4 °F 23.3 °F 23.0 °F 80% 29.77 in 8.0 mi North 4.6 mph - N/A   Overcast
7:53 PM 28.9 °F - 23.0 °F 78% 29.88 in 8.0 mi Calm Calm - N/A   Overcast
8:53 PM 28.0 °F - 23.0 °F 81% 29.89 in 7.0 mi Calm Calm - N/A   Overcast
9:35 PM 26.6 °F 21.2 °F 23.0 °F 86% 29.78 in 6.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
9:53 PM 27.0 °F 20.5 °F 23.0 °F 85% 29.90 in 6.0 mi ESE 5.8 mph - N/A   Scattered Clouds
10:53 PM 27.0 °F 23.0 °F 23.0 °F 85% 29.91 in 7.0 mi SE 3.5 mph - N/A   Overcast
11:53 PM 27.0 °F - 23.0 °F 85% 29.91 in 6.0 mi Calm Calm - N/A   Overcast