Weather History for Great Falls, MT

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Wednesday, February 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 20 °F 28 °F  
Max Temperature 27 °F 39 °F 68 °F (1896)
Min Temperature 13 °F 17 °F -29 °F (1918)
Degree Days  
Heating Degree Days 45 37  
Month to date heating degree days 630 765  
Since 1 July heating degree days 4550 5216  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 17 °F    
Average Humidity 84    
Maximum Humidity 92    
Minimum Humidity 75    
Precipitation  
Precipitation T in 0.02 in 0.38 in (1920)
Month to date precipitation 0.42 0.32  
Year to date precipitation 1.03 0.83  
Snow  
Snow 0.10 in 0.30 in 3.50 in (1920)
Month to date snowfall 9.5 5.8  
Since 1 July snowfall 55.7 37.6  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 29.92 in    
Wind  
Wind Speed 2 mph (SE)    
Max Wind Speed 7 mph    
Max Gust Speed 8 mph    
Visibility 7 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 20, 2013 Rise Set
Actual Time 7:21 AM MST 5:57 PM MST
Civil Twilight 6:50 AM MST 6:28 PM MST
Nautical Twilight 6:14 AM MST 7:04 PM MST
Astronomical Twilight 5:39 AM MST 7:39 PM MST
Moon 1:09 PM MST (2/20) 3:57 AM MST (2/20)
Length of Visible Light 11h 38m
Length of Day
10h 35m
Waxing Gibbous, 76% of the Moon is Illuminated
Feb 20
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:25 AM 15.8 °F - 12.2 °F 86% 29.78 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:36 AM 12.2 °F - 10.4 °F 92% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:53 AM 15.1 °F - 10.9 °F 84% 29.95 in 6.0 mi Calm Calm - N/A   Overcast
1:53 AM 19.9 °F - 16.0 °F 85% 29.93 in 9.0 mi Calm Calm - N/A   Overcast
2:42 AM 19.4 °F - 15.8 °F 86% 29.80 in 0.5 mi Calm Calm - N/A   Overcast
2:53 AM 19.0 °F - 16.0 °F 88% 29.95 in 0.5 mi Calm Calm - N/A   Overcast
3:10 AM 19.4 °F 14.3 °F 15.8 °F 86% 29.80 in 9.0 mi West 3.5 mph - N/A   Overcast
3:53 AM 17.1 °F - 12.9 °F 84% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 17.1 °F - 12.9 °F 84% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
5:01 AM 17.6 °F - 12.2 °F 79% 29.80 in 2.0 mi Calm Calm - N/A   Overcast
5:42 AM 19.4 °F 14.3 °F 15.8 °F 86% 29.81 in 3.0 mi ESE 3.5 mph - N/A   Overcast
5:53 AM 19.0 °F - 15.1 °F 85% 29.98 in 3.0 mi Calm Calm - N/A   Overcast
6:09 AM 19.4 °F - 14.0 °F 80% 29.81 in 2.5 mi Calm Calm - N/A   Overcast
6:53 AM 19.0 °F - 15.1 °F 85% 30.01 in 2.5 mi Calm Calm - N/A   Overcast
7:37 AM 19.4 °F 14.3 °F 15.8 °F 86% 29.83 in 2.5 mi WNW 3.5 mph - N/A   Overcast
7:53 AM 19.9 °F 14.9 °F 17.1 °F 89% 30.01 in 2.5 mi NW 3.5 mph - N/A   Overcast
8:06 AM 19.4 °F - 17.6 °F 93% 29.83 in 2.5 mi Calm Calm - N/A   Overcast
8:39 AM 21.2 °F - 17.6 °F 86% 29.83 in 5.0 mi Calm Calm - N/A   Overcast
8:51 AM 21.2 °F - 17.6 °F 86% 29.83 in 5.0 mi Calm Calm - N/A   Overcast
8:53 AM 21.0 °F - 17.1 °F 85% 30.01 in 5.0 mi Calm Calm - N/A   Overcast
9:16 AM 21.2 °F - 17.6 °F 86% 29.83 in 5.0 mi Calm Calm - N/A   Overcast
9:53 AM 21.9 °F - 19.0 °F 89% 30.01 in 6.0 mi Calm Calm - N/A   Overcast
10:53 AM 21.9 °F - 18.0 °F 85% 30.02 in 8.0 mi Calm Calm - N/A   Overcast
11:53 AM 24.1 °F - 19.0 °F 81% 30.01 in 9.0 mi Calm Calm - N/A   Overcast
12:53 PM 26.6 °F - 19.4 °F 74% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
1:03 PM 26.6 °F - 19.4 °F 74% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
1:53 PM 26.1 °F 20.5 °F 19.9 °F 78% 29.97 in 9.0 mi SE 4.6 mph - N/A   Overcast
2:53 PM 27.0 °F - 19.0 °F 72% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 27.0 °F 21.6 °F 19.0 °F 72% 29.96 in 10.0 mi SE 4.6 mph - N/A   Overcast
4:53 PM 26.1 °F - 19.9 °F 78% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:53 PM 26.1 °F 20.5 °F 19.0 °F 75% 29.97 in 10.0 mi East 4.6 mph - N/A   Overcast
6:53 PM 25.0 °F 20.7 °F 19.0 °F 78% 29.99 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
7:53 PM 23.0 °F 18.4 °F 18.0 °F 81% 29.99 in 10.0 mi East 3.5 mph - N/A   Overcast
8:53 PM 23.0 °F 18.4 °F 19.0 °F 85% 30.00 in 9.0 mi ESE 3.5 mph - N/A   Overcast
9:53 PM 19.9 °F - 16.0 °F 85% 30.02 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 PM 24.1 °F 18.2 °F 19.9 °F 84% 30.01 in 3.0 mi South 4.6 mph - 0.00 in Snow Light Snow
11:53 PM 19.0 °F 10.0 °F 16.0 °F 88% 30.02 in 8.0 mi SSW 6.9 mph - 0.00 in   Mostly Cloudy