Weather Almanac for Helena, MT

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Saturday, September 13, 2014

  Average Record
Temperature  
Mean Temperature 59 °F  
Max Temperature 74 °F 92 °F (1959)
Min Temperature 44 °F 27 °F (1974)
Degree Days  
Heating Degree Days 7  
Month to date heating degree days   67  
Since 1 July heating degree days   136  
Cooling Degree Days 1  
Month to date cooling degree days   18  
Year to date cooling degree days   401  
Moisture  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation 0.04 in 0.75 in (1982)
Month to date precipitation   0.52  
Year to date precipitation   9.07  
Snow  
Snow 0.00 in 4.10 in (1982)
Month to date snowfall   0.4  
Since 1 July snowfall   0.7  
Since 1 September snowfall   0.4  
Snow Depth    
Wind  
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 13, 2014 Rise Set
Actual Time 7:03 AM MDT 7:43 PM MDT
Civil Twilight 6:32 AM MDT 8:13 PM MDT
Nautical Twilight 5:56 AM MDT 8:49 PM MDT
Astronomical Twilight 5:18 AM MDT 9:27 PM MDT
Moon 10:31 PM MDT (9/13) 12:33 PM MDT (9/13)
Length of Visible Light 13h 40m
Length of Day
12h 40m
Waning Gibbous, 73% of the Moon is Illuminated
Sep 13
Waning Gibbous
Sep 15
Last Quarter
Sep 24
New
Oct 1
First Quarter
Oct 8
Full

No daily or hourly history data available