Weather History for Great Falls, MT

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Wednesday, April 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 28 °F 43 °F  
Max Temperature 40 °F 56 °F 82 °F (1936)
Min Temperature 15 °F 31 °F 12 °F (1968)
Degree Days  
Heating Degree Days 37 22  
Month to date heating degree days 469 404  
Since 1 July heating degree days 6174 6862  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 18 °F    
Average Humidity 65    
Maximum Humidity 100    
Minimum Humidity 30    
Precipitation  
Precipitation 0.01 in 0.05 in 0.56 in (1971)
Month to date precipitation 0.55 0.76  
Year to date precipitation 1.83 2.65  
Snow  
Snow 0.40 in 0.30 in 5.40 in (2011)
Month to date snowfall 8.2 5.3  
Since 1 July snowfall 68.0 57.2  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 30.37 in    
Wind  
Wind Speed 6 mph (WSW)    
Max Wind Speed 13 mph    
Max Gust Speed 16 mph    
Visibility 6 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 17, 2013 Rise Set
Actual Time 6:32 AM MDT 8:18 PM MDT
Civil Twilight 6:00 AM MDT 8:50 PM MDT
Nautical Twilight 5:20 AM MDT 9:30 PM MDT
Astronomical Twilight 4:36 AM MDT 10:14 PM MDT
Moon 11:42 AM MDT (4/17) 2:06 AM MDT (4/17)
Length of Visible Light 14h 50m
Length of Day
13h 45m
Waxing Crescent, 43% of the Moon is Illuminated
Apr 17
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:41 AM 21.2 °F 16.4 °F 19.4 °F 93% 30.31 in 3.0 mi East 3.5 mph - 0.00 in Snow Light Snow
12:48 AM 21.2 °F - 19.4 °F 93% 30.31 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
12:53 AM 21.9 °F - 19.9 °F 92% 30.48 in 2.5 mi Calm Calm - 0.01 in Snow Light Snow
1:15 AM 21.2 °F 16.4 °F 19.4 °F 93% 30.31 in 3.0 mi SE 3.5 mph - 0.00 in Snow Light Snow
1:25 AM 21.2 °F - 19.4 °F 93% 30.31 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
1:53 AM 21.0 °F - 18.0 °F 88% 30.47 in 5.0 mi Calm Calm - 0.00 in Snow Light Snow
2:07 AM 21.2 °F - 17.6 °F 86% 30.30 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
2:17 AM 21.2 °F - 19.4 °F 93% 30.30 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
2:53 AM 19.0 °F - 17.1 °F 92% 30.47 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
3:16 AM 19.4 °F - 17.6 °F 93% 30.29 in 5.0 mi Calm Calm - 0.00 in   Overcast
3:33 AM 19.4 °F - 17.6 °F 93% 30.29 in 2.0 mi Calm Calm - 0.00 in Snow Light Snow
3:53 AM 19.9 °F 14.9 °F 18.0 °F 92% 30.46 in 2.0 mi WSW 3.5 mph - 0.00 in Snow Light Snow
4:01 AM 19.4 °F - 17.6 °F 93% 30.29 in 1.5 mi Calm Calm - 0.00 in Snow Light Snow
4:13 AM 19.4 °F - 17.6 °F 93% 30.29 in 3.0 mi Calm Calm - 0.01 in Snow Light Snow
4:53 AM 18.0 °F 11.1 °F 16.0 °F 92% 30.47 in 6.0 mi SW 4.6 mph - 0.01 in   Overcast
5:42 AM 17.6 °F 10.7 °F 15.8 °F 93% 30.29 in 10.0 mi SW 4.6 mph - N/A   Overcast
5:53 AM 17.1 °F 10.0 °F 15.1 °F 92% 30.47 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
6:35 AM 17.6 °F 8.2 °F 15.8 °F 93% 30.29 in 10.0 mi West 6.9 mph - N/A   Overcast
6:41 AM 17.6 °F 8.2 °F 15.8 °F 93% 30.29 in 1.0 mi West 6.9 mph - N/A   Overcast
6:53 AM 19.0 °F 11.1 °F 17.1 °F 92% 30.47 in 2.0 mi West 5.8 mph - N/A   Overcast
7:17 AM 19.4 °F 10.4 °F 17.6 °F 93% 30.30 in 8.0 mi West 6.9 mph - N/A   Overcast
7:53 AM 17.6 °F 10.7 °F 15.8 °F 93% 30.30 in 7.0 mi West 4.6 mph - N/A   Mostly Cloudy
8:09 AM 17.6 °F - 17.6 °F 100% 30.31 in 0.5 mi Calm Calm - N/A   Overcast
8:39 AM 19.4 °F 12.8 °F 19.4 °F 100% 30.30 in 0.2 mi West 4.6 mph - N/A   Overcast
8:53 AM 19.9 °F 13.4 °F 19.0 °F 96% 30.50 in 0.2 mi WSW 4.6 mph - N/A   Overcast
9:17 AM 19.4 °F 11.5 °F 17.6 °F 93% 30.31 in 1.8 mi WSW 5.8 mph - N/A   Overcast
9:25 AM 19.4 °F - 17.6 °F 93% 30.31 in 3.0 mi Calm Calm - N/A   Overcast
9:43 AM 21.2 °F 16.4 °F 19.4 °F 93% 30.30 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
9:53 AM 21.9 °F 15.7 °F 19.9 °F 92% 30.50 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
10:23 AM 24.8 °F 17.9 °F 19.4 °F 80% 30.31 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
10:30 AM 24.8 °F 17.9 °F 19.4 °F 80% 30.31 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
10:53 AM 27.0 °F 21.6 °F 21.0 °F 78% 30.48 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
11:10 AM 26.6 °F 19.1 °F 19.4 °F 74% 30.30 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
11:35 AM 28.4 °F 23.3 °F 21.2 °F 74% 30.30 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
11:53 AM 28.9 °F - 19.0 °F 67% 30.47 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:43 PM 30.2 °F 26.7 °F 19.4 °F 64% 30.29 in 10.0 mi West 3.5 mph - N/A   Overcast
12:53 PM 32.0 °F 26.4 °F 19.0 °F 59% 30.45 in 10.0 mi WNW 5.8 mph - N/A   Overcast
1:53 PM 34.0 °F 27.2 °F 19.0 °F 54% 30.43 in 10.0 mi West 8.1 mph - N/A   Overcast
2:53 PM 34.0 °F 27.2 °F 16.0 °F 48% 30.43 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
3:53 PM 37.0 °F 33.3 °F 12.9 °F 37% 30.40 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
4:53 PM 36.0 °F 33.3 °F 12.9 °F 39% 30.41 in 10.0 mi North 3.5 mph - N/A   Overcast
5:53 PM 39.9 °F 34.5 °F 10.9 °F 31% 30.38 in 10.0 mi NE 8.1 mph - N/A   Partly Cloudy
6:53 PM 36.0 °F 28.0 °F 19.0 °F 50% 30.39 in 10.0 mi ESE 11.5 mph - N/A   Clear
7:53 PM 33.1 °F 25.5 °F 19.0 °F 56% 30.40 in 10.0 mi SSE 9.2 mph - N/A   Clear
8:53 PM 28.9 °F 19.8 °F 18.0 °F 64% 30.40 in 10.0 mi South 10.4 mph - N/A   Clear
9:53 PM 28.0 °F 18.6 °F 16.0 °F 61% 30.40 in 10.0 mi SSW 10.4 mph - N/A   Clear
10:53 PM 27.0 °F 16.7 °F 16.0 °F 63% 30.37 in 10.0 mi SSW 11.5 mph - N/A   Clear
11:53 PM 26.1 °F 16.2 °F 15.1 °F 63% 30.34 in 10.0 mi South 10.4 mph - N/A   Clear