Weather History for Great Falls, MT

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Tuesday, December 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F 25 °F  
Max Temperature 42 °F 35 °F 60 °F (1993)
Min Temperature 26 °F 15 °F -26 °F (1932)
Degree Days  
Heating Degree Days 31 40  
Month to date heating degree days 335 430  
Since 1 July heating degree days 1952 2399  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture  
Dew Point 24 °F    
Average Humidity 62    
Maximum Humidity 75    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.02 in 0.36 in (1903)
Month to date precipitation 0.22 0.20  
Year to date precipitation 12.80 14.40  
Snow  
Snow 0.00 in 0.20 in 4.10 in (1946)
Month to date snowfall 5.7 3.1  
Since 1 July snowfall 27.4 16.8  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 29.63 in    
Wind  
Wind Speed 22 mph (SW)    
Max Wind Speed 33 mph    
Max Gust Speed 43 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 11, 2012 Rise Set
Actual Time 8:03 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 6:11 AM MST 6:26 PM MST
Moon 5:59 AM MST (12/11) 3:19 PM MST (12/11)
Length of Visible Light 9h 42m
Length of Day
8h 30m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
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 26.1 °F 14.0 °F 17.1 °F 69% 29.91 in 10.0 mi SW 15.0 mph - N/A   Clear
1:53 AM 26.1 °F 14.5 °F 17.1 °F 69% 29.90 in 10.0 mi SW 13.8 mph - N/A   Clear
2:53 AM 27.0 °F 16.1 °F 19.0 °F 72% 29.88 in 10.0 mi SW 12.7 mph - N/A   Clear
3:53 AM 32.0 °F 20.5 °F 21.0 °F 64% 29.82 in 10.0 mi SW 18.4 mph - N/A   Clear
4:53 AM 34.0 °F 22.7 °F 23.0 °F 64% 29.78 in 10.0 mi SSW 19.6 mph - N/A   Clear
5:53 AM 36.0 °F 25.3 °F 24.1 °F 62% 29.72 in 10.0 mi SSW 19.6 mph - N/A   Clear
6:53 AM 37.9 °F 27.1 °F 25.0 °F 60% 29.70 in 10.0 mi SW 23.0 mph - N/A   Partly Cloudy
7:53 AM 37.9 °F 26.8 °F 26.1 °F 62% 29.67 in 10.0 mi SW 24.2 mph 32.2 mph N/A   Overcast
8:53 AM 37.9 °F 26.6 °F 26.1 °F 62% 29.65 in 10.0 mi SSW 25.3 mph - N/A   Scattered Clouds
9:53 AM 39.9 °F 28.6 °F 27.0 °F 60% 29.63 in 10.0 mi SW 28.8 mph 34.5 mph N/A   Scattered Clouds
10:53 AM 41.0 °F 30.0 °F 26.1 °F 55% 29.61 in 10.0 mi SW 28.8 mph 38.0 mph N/A   Clear
11:53 AM 41.0 °F 31.1 °F 27.0 °F 57% 29.58 in 10.0 mi SW 23.0 mph 33.4 mph N/A   Clear
12:53 PM 41.0 °F 29.7 °F 27.0 °F 57% 29.54 in 10.0 mi SW 31.1 mph 39.1 mph N/A   Clear
1:53 PM 42.1 °F 31.3 °F 27.0 °F 55% 29.55 in 10.0 mi SW 29.9 mph 36.8 mph N/A   Clear
2:53 PM 42.1 °F 32.3 °F 26.1 °F 53% 29.54 in 10.0 mi SSW 24.2 mph 34.5 mph N/A   Overcast
3:53 PM 42.1 °F 33.6 °F 25.0 °F 51% 29.55 in 10.0 mi SSW 18.4 mph 26.5 mph N/A   Overcast
4:53 PM 41.0 °F 31.4 °F 25.0 °F 53% 29.53 in 10.0 mi SW 21.9 mph 28.8 mph N/A   Overcast
5:53 PM 39.9 °F 30.2 °F 25.0 °F 55% 29.53 in 10.0 mi SW 20.7 mph 28.8 mph N/A   Clear
6:53 PM 39.9 °F 29.0 °F 25.0 °F 55% 29.51 in 10.0 mi SW 26.5 mph 35.7 mph N/A   Clear
7:53 PM 39.0 °F 28.3 °F 25.0 °F 57% 29.52 in 10.0 mi SW 24.2 mph - N/A   Scattered Clouds
8:53 PM 39.9 °F 30.2 °F 25.0 °F 55% 29.52 in 10.0 mi SW 20.7 mph - N/A   Mostly Cloudy
9:53 PM 39.9 °F 31.1 °F 26.1 °F 58% 29.52 in 10.0 mi SW 17.3 mph - N/A   Overcast
10:53 PM 39.9 °F 31.4 °F 25.0 °F 55% 29.53 in 10.0 mi SW 16.1 mph 21.9 mph N/A   Overcast
11:53 PM 39.0 °F 29.6 °F 26.1 °F 60% 29.54 in 10.0 mi SSW 18.4 mph - N/A   Overcast