History for Great Falls, MT

Monday, December 31, 2012 — View Current Conditions
Monday, December 31, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 22 °F 24 °F  
Max Temperature 29 °F 34 °F 59 °F (1963)
Min Temperature 14 °F 14 °F -33 °F (1927)
Degree Days
Heating Degree Days 43 41  
Month to date heating degree days 1206 1248  
Since 1 July heating degree days 2823 3217  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 484 298  
Moisture
Dew Point 12 °F    
Average Humidity 65    
Maximum Humidity 73    
Minimum Humidity 56    
Precipitation
Precipitation 0.00 in 0.02 in 0.41 in (1899)
Month to date precipitation 0.55 0.55  
Year to date precipitation 13.13 14.75  
Snow
Snow 0.00 in 0.30 in 4.10 in (1899)
Month to date snowfall 10.6 9.5  
Since 1 July snowfall 32.3 23.2  
Snow Depth 3.00 in    
Sea Level Pressure
Sea Level Pressure 30.18 in    
Wind
Wind Speed 16 mph (SSW)    
Max Wind Speed 23 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
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Astronomy
May. 23, 2013 Rise Set
Actual Time 8:13 AM MST 4:44 PM MST
Civil Twilight 7:37 AM MST 5:20 PM MST
Nautical Twilight 6:58 AM MST 5:59 PM MST
Astronomical Twilight 6:21 AM MST 6:36 PM MST
Moon 8:34 PM MST (12/31) 9:42 AM MST (12/31)
Length Of Visible Light 9h 42m
Length of Day
8h 31m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
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Hourly Observations
Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 14.0 °F 0.5 °F 6.1 °F 71% 30.19 in 10.0 mi SSW 11.5 mph - N/A   Clear
1:53 AM 17.1 °F - 7.0 °F 65% 30.19 in 10.0 mi North - - N/A   Mostly Cloudy
2:53 AM 19.9 °F 6.2 °F 9.0 °F 62% 30.18 in 10.0 mi SSW 15.0 mph - N/A   Mostly Cloudy
3:53 AM 18.0 °F 3.6 °F 7.0 °F 62% 30.18 in 10.0 mi SSW 15.0 mph - N/A   Clear
4:53 AM 18.0 °F 3.1 °F 7.0 °F 62% 30.19 in 10.0 mi SSW 16.1 mph - N/A   Clear
5:53 AM 18.0 °F 3.1 °F 7.0 °F 62% 30.20 in 10.0 mi SSW 16.1 mph - N/A   Clear
6:53 AM 19.0 °F 4.0 °F 7.0 °F 59% 30.19 in 10.0 mi SSW 17.3 mph - N/A   Clear
7:53 AM 19.0 °F 4.5 °F 7.0 °F 59% 30.19 in 10.0 mi SSW 16.1 mph - N/A   Clear
8:53 AM 19.0 °F 5.0 °F 8.1 °F 62% 30.19 in 10.0 mi SSW 15.0 mph - N/A   Clear
9:53 AM 21.0 °F 7.1 °F 9.0 °F 60% 30.19 in 10.0 mi SSW 16.1 mph - N/A   Clear
10:53 AM 24.1 °F 10.1 °F 12.0 °F 60% 30.18 in 10.0 mi SSW 18.4 mph - N/A   Clear
11:53 AM 27.0 °F 13.9 °F 14.0 °F 58% 30.17 in 10.0 mi SSW 18.4 mph - N/A   Overcast
12:53 PM 28.0 °F 15.3 °F 16.0 °F 61% 30.17 in 10.0 mi SW 18.4 mph - N/A   Overcast
1:53 PM 28.9 °F 16.9 °F 16.0 °F 58% 30.14 in 10.0 mi SW 17.3 mph - N/A   Overcast
2:53 PM 28.9 °F 17.3 °F 16.0 °F 58% 30.14 in 10.0 mi SW 16.1 mph - N/A   Overcast
3:53 PM 28.9 °F 16.5 °F 17.1 °F 61% 30.15 in 10.0 mi SSW 18.4 mph - N/A   Overcast
4:53 PM 28.0 °F 14.9 °F 17.1 °F 63% 30.17 in 10.0 mi SSW 19.6 mph - N/A   Overcast
5:53 PM 28.0 °F 15.7 °F 17.1 °F 63% 30.18 in 10.0 mi SSW 17.3 mph - N/A   Overcast
6:53 PM 27.0 °F 15.2 °F 17.1 °F 66% 30.19 in 10.0 mi SSW 15.0 mph - N/A   Overcast
7:53 PM 26.6 °F 16.2 °F 17.6 °F 69% 30.04 in 10.0 mi SW 11.5 mph - N/A   Overcast
8:53 PM 27.0 °F 16.7 °F 17.1 °F 66% 30.22 in 10.0 mi SSW 11.5 mph - N/A   Overcast
9:53 PM 25.0 °F 14.2 °F 16.0 °F 69% 30.23 in 10.0 mi SW 11.5 mph - N/A   Overcast
10:53 PM 24.1 °F 12.5 °F 14.0 °F 65% 30.24 in 10.0 mi SSW 12.7 mph - N/A   Scattered Clouds
11:53 PM 26.1 °F 15.0 °F 16.0 °F 66% 30.22 in 10.0 mi SSW 12.7 mph - N/A   Overcast
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