Weather Almanac for Great Falls, MT

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Monday, May 11, 2015

  Average Record
Mean Temperature 50 °F  
Max Temperature 64 °F 88 °F (1960)
Min Temperature 37 °F 23 °F (1983)
Degree Days  
Heating Degree Days 15  
Month to date heating degree days   179  
Since 1 July heating degree days   7296  
Cooling Degree Days 0  
Month to date cooling degree days   0  
Year to date cooling degree days   1  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation 0.06 in 0.65 in (1963)
Month to date precipitation   0.61  
Year to date precipitation   3.92  
Snow 0.10 in 3.50 in (1943)
Month to date snowfall   1.5  
Since 1 July snowfall   62.0  
Snow Depth    
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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May. 11, 2015 Rise Set
Actual Time 5:54 AM MDT 8:50 PM MDT
Civil Twilight 5:18 AM MDT 9:26 PM MDT
Nautical Twilight 4:32 AM MDT 10:12 PM MDT
Astronomical Twilight 3:37 AM MDT 11:08 PM MDT
Moon 2:22 AM MDT (5/11) 1:11 PM MDT (5/11)
Length of Visible Light 16h 08m
Length of Day
14h 56m
Waning Gibbous, 47% of the Moon is Illuminated
May 11
Waning Gibbous
May 17
May 25
First Quarter
Jun 2
Jun 9
Last Quarter

No daily or hourly history data available