Weather History for Great Falls, MT

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Friday, December 28, 2012

  Actual Average Record
Temperature  
Mean Temperature 23 °F 24 °F  
Max Temperature 32 °F 34 °F 58 °F (1999)
Min Temperature 14 °F 14 °F -35 °F (1968)
Degree Days  
Heating Degree Days 42 41  
Month to date heating degree days 1078 1125  
Since 1 July heating degree days 2695 3094  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture  
Dew Point 13 °F    
Average Humidity 66    
Maximum Humidity 74    
Minimum Humidity 58    
Precipitation  
Precipitation 0.00 in 0.02 in 0.40 in (1989)
Month to date precipitation 0.49 0.50  
Year to date precipitation 13.07 14.70  
Snow  
Snow 0.00 in 0.30 in 6.00 in (1923)
Month to date snowfall 9.3 8.5  
Since 1 July snowfall 31.0 22.2  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 10 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 16 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 28, 2012 Rise Set
Actual Time 8:12 AM MST 4:42 PM MST
Civil Twilight 7:37 AM MST 5:17 PM MST
Nautical Twilight 6:57 AM MST 5:57 PM MST
Astronomical Twilight 6:20 AM MST 6:34 PM MST
Moon 5:26 PM MST (12/28) 8:05 AM MST (12/28)
Length of Visible Light 9h 40m
Length of Day
8h 29m
Full, 100% of the Moon is Illuminated
Dec 28
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 13.4 °F 14.0 °F 72% 30.06 in 10.0 mi West 6.9 mph - N/A   Overcast
1:53 AM 25.0 °F 16.3 °F 15.1 °F 66% 30.04 in 10.0 mi WSW 8.1 mph - N/A   Overcast
2:53 AM 25.0 °F 18.1 °F 15.1 °F 66% 30.05 in 10.0 mi WSW 5.8 mph - N/A   Overcast
3:53 AM 23.0 °F 15.8 °F 15.8 °F 74% 29.89 in 10.0 mi SW 5.8 mph - N/A   Overcast
4:53 AM 25.0 °F 14.8 °F 16.0 °F 69% 30.06 in 10.0 mi SW 10.4 mph - N/A   Overcast
5:53 AM 17.1 °F 7.6 °F 10.0 °F 74% 30.11 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
6:53 AM 16.0 °F 2.9 °F 8.1 °F 71% 30.12 in 10.0 mi SSW 11.5 mph - N/A   Clear
7:53 AM 15.1 °F 2.5 °F 7.0 °F 70% 30.13 in 10.0 mi SSW 10.4 mph - N/A   Clear
8:53 AM 18.0 °F 6.1 °F 8.1 °F 65% 30.13 in 10.0 mi SW 10.4 mph - N/A   Clear
9:53 AM 19.9 °F 8.6 °F 10.0 °F 65% 30.14 in 10.0 mi SSW 10.4 mph - N/A   Clear
10:53 AM - - - N/A% 29.95 in - North - - N/A   Unknown
10:59 AM 24.8 °F 14.6 °F 15.8 °F 69% 29.95 in 10.0 mi SSW 10.4 mph - N/A   Clear
11:53 AM 26.6 °F 16.2 °F 16.2 °F 65% 30.10 in 10.0 mi SSW 11.5 mph - N/A   Clear
12:53 PM 26.6 °F 15.7 °F 17.6 °F 69% 30.09 in 10.0 mi SW 12.7 mph - N/A   Clear
1:46 PM 28.4 °F 18.0 °F 17.6 °F 64% 29.93 in 10.0 mi SSW 12.7 mph - N/A   Clear
1:53 PM 28.4 °F 18.0 °F 17.6 °F 64% 30.08 in 10.0 mi SSW 12.7 mph - N/A   Clear
2:53 PM 30.9 °F 24.3 °F 18.0 °F 59% - 10.0 mi SW 6.9 mph - N/A   Clear
3:53 PM 28.0 °F 18.1 °F 16.0 °F 61% 30.11 in 10.0 mi SSW 11.5 mph - N/A   Clear
4:53 PM 24.1 °F 13.1 °F 14.0 °F 65% 30.12 in 10.0 mi SW 11.5 mph - N/A   Clear
5:53 PM 21.0 °F 9.9 °F 12.0 °F 68% 30.16 in 10.0 mi SW 10.4 mph - N/A   Clear
6:53 PM 19.0 °F 6.1 °F 10.0 °F 68% 30.16 in 10.0 mi SW 12.7 mph - N/A   Clear
7:53 PM 19.9 °F 8.6 °F 10.9 °F 68% 30.17 in 10.0 mi SW 10.4 mph - N/A   Clear
8:53 PM 23.0 °F 11.1 °F 12.0 °F 63% 30.16 in 10.0 mi SW 12.7 mph - N/A   Clear
9:53 PM 19.0 °F 6.1 °F 10.0 °F 68% 30.17 in 10.0 mi SSW 12.7 mph - N/A   Clear
10:53 PM 19.9 °F 7.9 °F 10.0 °F 65% 29.99 in 10.0 mi SSW 11.5 mph - N/A   Clear
11:53 PM 19.9 °F 7.9 °F 10.0 °F 65% 30.15 in 10.0 mi South 11.5 mph - N/A   Clear