Weather History for Great Falls, MT

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Saturday, December 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 26 °F 24 °F  
Max Temperature 32 °F 34 °F 60 °F (1956)
Min Temperature 19 °F 14 °F -43 °F (1968)
Degree Days  
Heating Degree Days 39 41  
Month to date heating degree days 1117 1166  
Since 1 July heating degree days 2734 3135  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture  
Dew Point 15 °F    
Average Humidity 59    
Maximum Humidity 68    
Minimum Humidity 50    
Precipitation  
Precipitation 0.02 in 0.02 in 0.74 in (2010)
Month to date precipitation 0.51 0.52  
Year to date precipitation 13.09 14.72  
Snow  
Snow 0.50 in 0.30 in 11.00 in (2010)
Month to date snowfall 9.8 8.8  
Since 1 July snowfall 31.5 22.5  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 11 mph (SSW)    
Max Wind Speed 22 mph    
Max Gust Speed 25 mph    
Visibility 8 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 29, 2012 Rise Set
Actual Time 8:13 AM MST 4:42 PM MST
Civil Twilight 7:37 AM MST 5:18 PM MST
Nautical Twilight 6:58 AM MST 5:57 PM MST
Astronomical Twilight 6:20 AM MST 6:35 PM MST
Moon 6:27 PM MST (12/29) 8:42 AM MST (12/29)
Length of Visible Light 9h 41m
Length of Day
8h 29m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 21.9 °F 10.4 °F 10.9 °F 63% 30.14 in 10.0 mi SSW 11.5 mph - N/A   Clear
1:53 AM 21.0 °F 9.3 °F 10.9 °F 65% 30.13 in 10.0 mi SSW 11.5 mph - N/A   Clear
2:53 AM 23.0 °F 11.1 °F 12.0 °F 63% 30.12 in 10.0 mi SSW 12.7 mph - N/A   Clear
3:53 AM 21.9 °F 11.7 °F 12.0 °F 66% 30.13 in 10.0 mi SSW 9.2 mph - N/A   Clear
4:53 AM 24.1 °F 12.5 °F 12.9 °F 62% 30.12 in 10.0 mi SSW 12.7 mph - N/A   Clear
5:53 AM 23.0 °F 11.1 °F 12.9 °F 65% 30.13 in 10.0 mi SSW 12.7 mph - N/A   Clear
6:53 AM 23.0 °F 11.1 °F 12.0 °F 63% 30.13 in 10.0 mi SSW 12.7 mph - N/A   Clear
7:53 AM 25.0 °F 14.8 °F 14.0 °F 63% 30.12 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
8:53 AM 27.0 °F 15.2 °F 14.0 °F 58% 30.10 in 10.0 mi SSW 15.0 mph - N/A   Clear
9:53 AM 28.0 °F 16.5 °F 14.0 °F 56% 30.11 in 10.0 mi SSW 15.0 mph - N/A   Clear
10:53 AM 30.0 °F 18.3 °F 15.1 °F 54% 30.11 in 10.0 mi SSW 17.3 mph - N/A   Clear
11:53 AM 30.0 °F 20.0 °F 17.1 °F 59% 30.09 in 10.0 mi SSW 12.7 mph - N/A   Clear
12:53 PM 30.0 °F 18.7 °F 16.0 °F 56% 30.05 in 10.0 mi SSW 16.1 mph - N/A   Clear
1:53 PM 30.9 °F 20.2 °F 16.0 °F 54% 30.04 in 10.0 mi SSW 15.0 mph - N/A   Clear
2:53 PM 30.0 °F 19.1 °F 15.1 °F 54% 30.04 in 10.0 mi SW 15.0 mph - N/A   Clear
3:53 PM 30.9 °F 19.8 °F 15.1 °F 52% 30.05 in 10.0 mi SW 16.1 mph - N/A   Clear
4:53 PM 28.0 °F 18.1 °F 12.9 °F 53% 30.06 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
5:53 PM 26.1 °F 16.2 °F 14.0 °F 60% 30.07 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
6:53 PM 23.0 °F 13.1 °F 12.9 °F 65% 30.09 in 10.0 mi SSW 9.2 mph - N/A   Partly Cloudy
7:53 PM 23.0 °F 18.4 °F 12.9 °F 65% 30.11 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
8:53 PM 24.1 °F - 15.1 °F 69% 30.10 in 5.0 mi Calm Calm - 0.00 in Snow Light Snow
9:04 PM 24.8 °F - 17.6 °F 74% 29.95 in 1.5 mi Calm Calm - 0.00 in Snow Light Snow
9:11 PM 24.8 °F - 17.6 °F 74% 29.95 in 1.0 mi Calm Calm - 0.01 in Snow Light Snow
9:34 PM 24.8 °F 17.9 °F 19.4 °F 80% 29.95 in 6.0 mi South 5.8 mph - 0.02 in Snow Light Snow
9:53 PM 25.0 °F 18.1 °F 19.9 °F 81% 30.11 in 8.0 mi South 5.8 mph - 0.02 in   Overcast
10:53 PM 25.0 °F 17.1 °F 21.0 °F 85% 30.11 in 6.0 mi SSW 6.9 mph - 0.00 in Snow Light Snow
11:53 PM 25.0 °F 15.5 °F 21.0 °F 85% 30.11 in 3.0 mi SW 9.2 mph - 0.00 in Snow Light Snow