Weather History for Great Falls, MT

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Thursday, April 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 41 °F 44 °F  
Max Temperature 56 °F 56 °F 86 °F (1936)
Min Temperature 25 °F 31 °F 6 °F (1951)
Degree Days  
Heating Degree Days 24 21  
Month to date heating degree days 493 425  
Since 1 July heating degree days 6198 6883  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 19 °F    
Average Humidity 44    
Maximum Humidity 63    
Minimum Humidity 24    
Precipitation  
Precipitation 0.00 in 0.04 in 1.22 in (1993)
Month to date precipitation 0.55 0.80  
Year to date precipitation 1.83 2.69  
Snow  
Snow 0.00 in 0.30 in 2.50 in (2007)
Month to date snowfall 8.2 5.6  
Since 1 July snowfall 68.0 57.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 12 mph (WSW)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 18, 2013 Rise Set
Actual Time 6:30 AM MDT 8:19 PM MDT
Civil Twilight 5:58 AM MDT 8:52 PM MDT
Nautical Twilight 5:18 AM MDT 9:32 PM MDT
Astronomical Twilight 4:34 AM MDT 10:16 PM MDT
Moon 12:41 PM MDT (4/18) 2:41 AM MDT (4/18)
Length of Visible Light 14h 54m
Length of Day
13h 48m
First Quarter, 52% of the Moon is Illuminated
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New
May 17
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 26.1 °F 16.8 °F 14.0 °F 60% 30.32 in 10.0 mi South 9.2 mph - N/A   Clear
1:53 AM 25.0 °F 14.2 °F 14.0 °F 63% 30.30 in 10.0 mi SSW 11.5 mph - N/A   Clear
2:53 AM 26.1 °F 15.0 °F 14.0 °F 60% 30.27 in 10.0 mi SSW 12.7 mph - N/A   Clear
3:53 AM 27.0 °F 16.1 °F 15.1 °F 61% 30.25 in 10.0 mi SSW 12.7 mph - N/A   Clear
4:53 AM 27.0 °F 15.6 °F 15.1 °F 61% 30.24 in 10.0 mi SSW 13.8 mph - N/A   Clear
5:53 AM 27.0 °F 16.1 °F 14.0 °F 58% 30.22 in 10.0 mi SSW 12.7 mph - N/A   Clear
6:53 AM 28.0 °F 17.0 °F 15.1 °F 58% 30.24 in 10.0 mi SSW 13.8 mph - N/A   Clear
7:53 AM 32.0 °F 21.2 °F 16.0 °F 52% 30.24 in 10.0 mi SSW 16.1 mph - N/A   Clear
8:53 AM 36.0 °F 26.0 °F 18.0 °F 48% 30.23 in 10.0 mi SSW 17.3 mph - N/A   Clear
9:53 AM 41.0 °F 32.8 °F 18.0 °F 40% 30.22 in 10.0 mi SW 16.1 mph 23.0 mph N/A   Clear
10:53 AM 45.0 °F 38.2 °F 19.9 °F 37% 30.22 in 10.0 mi SW 15.0 mph 21.9 mph N/A   Clear
11:53 AM 48.0 °F - 19.9 °F 33% 30.21 in 10.0 mi West 10.4 mph 21.9 mph N/A   Mostly Cloudy
12:53 PM 48.9 °F - 19.0 °F 31% 30.19 in 10.0 mi WNW 12.7 mph 20.7 mph N/A   Overcast
1:53 PM 51.1 °F - 17.1 °F 26% 30.18 in 10.0 mi WNW 11.5 mph - N/A   Overcast
2:53 PM 54.0 °F - 18.0 °F 24% 30.17 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Overcast
3:53 PM 53.1 °F - 19.0 °F 26% 30.17 in 10.0 mi WNW 10.4 mph 21.9 mph N/A   Overcast
4:53 PM 52.0 °F - 19.9 °F 28% 30.16 in 10.0 mi West 11.5 mph - N/A   Overcast
5:53 PM 52.0 °F - 23.0 °F 32% 30.15 in 10.0 mi West 12.7 mph - N/A   Overcast
6:53 PM 51.1 °F - 21.0 °F 31% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 48.9 °F - 21.9 °F 35% 30.14 in 10.0 mi West 16.1 mph - N/A   Overcast
8:53 PM 44.1 °F 37.7 °F 21.9 °F 42% 30.16 in 10.0 mi West 12.7 mph - N/A   Overcast
9:53 PM 42.1 °F 35.7 °F 23.0 °F 47% 30.15 in 10.0 mi WSW 11.5 mph - N/A   Overcast
10:53 PM 39.9 °F 32.5 °F 24.1 °F 53% 30.14 in 10.0 mi WSW 12.7 mph - N/A   Overcast
11:53 PM 36.0 °F 28.0 °F 23.0 °F 59% 30.12 in 10.0 mi SW 11.5 mph - N/A   Clear