Weather History for Great Falls, MT

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Friday, February 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F 27 °F  
Max Temperature 44 °F 39 °F 64 °F (1896)
Min Temperature 24 °F 16 °F -39 °F (1936)
Degree Days  
Heating Degree Days 31 38  
Month to date heating degree days 626 654  
Since 1 July heating degree days 4386 5105  
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 54    
Maximum Humidity 75    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.02 in 0.29 in (1959)
Month to date precipitation 0.11 0.27  
Year to date precipitation 0.41 0.78  
Snow  
Snow 0.00 in 0.30 in 5.60 in (1959)
Month to date snowfall 2.0 4.8  
Since 1 July snowfall 17.6 36.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 17, 2012 Rise Set
Actual Time 7:28 AM MST 5:51 PM MST
Civil Twilight 6:56 AM MST 6:23 PM MST
Nautical Twilight 6:20 AM MST 6:59 PM MST
Astronomical Twilight 5:45 AM MST 7:34 PM MST
Moon 4:36 AM MST (2/17) 1:35 PM MST (2/17)
Length of Visible Light 11h 26m
Length of Day
10h 23m
Waning Crescent, 18% of the Moon is Illuminated
Feb 17
Waning Crescent
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Mar 14
Last Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 33.1 °F 26.1 °F 19.9 °F 59% 30.10 in 10.0 mi WSW 8.1 mph - N/A   Overcast
1:53 AM 33.1 °F 28.7 °F 19.9 °F 59% 30.11 in 10.0 mi West 4.6 mph - N/A   Overcast
2:53 AM 32.0 °F - 19.0 °F 59% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 28.0 °F 22.8 °F 19.0 °F 69% 30.16 in 10.0 mi SSW 4.6 mph - N/A   Overcast
4:53 AM 30.9 °F 23.5 °F 21.9 °F 69% 30.16 in 10.0 mi SW 8.1 mph - N/A   Overcast
5:53 AM 26.1 °F 17.6 °F 19.9 °F 78% 30.19 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
6:53 AM 28.9 °F 21.1 °F 21.0 °F 72% 30.18 in 10.0 mi SW 8.1 mph - N/A   Overcast
7:53 AM 28.0 °F 19.3 °F 21.0 °F 75% 30.20 in 10.0 mi SW 9.2 mph - N/A   Overcast
8:53 AM 32.0 °F 24.8 °F 21.0 °F 64% 30.22 in 10.0 mi SW 8.1 mph - N/A   Overcast
9:53 AM 35.1 °F 28.6 °F 19.9 °F 54% 30.23 in 10.0 mi WSW 8.1 mph - N/A   Overcast
10:53 AM 37.0 °F 32.4 °F 19.9 °F 50% 30.24 in 10.0 mi West 5.8 mph - N/A   Overcast
11:53 AM 41.0 °F 38.0 °F 18.0 °F 40% 30.22 in 10.0 mi West 4.6 mph - N/A   Clear
12:53 PM 43.0 °F 40.3 °F 17.1 °F 35% 30.18 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:53 PM 44.6 °F 39.7 °F 17.6 °F 34% 30.08 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy
2:53 PM 44.1 °F 37.7 °F 17.1 °F 34% 30.14 in 10.0 mi WSW 12.7 mph 16.1 mph N/A   Partly Cloudy
3:53 PM 44.1 °F 41.5 °F 18.0 °F 35% 30.13 in 10.0 mi SW 4.6 mph - N/A   Clear
4:53 PM 42.1 °F 37.1 °F 18.0 °F 38% 30.11 in 10.0 mi SW 8.1 mph - N/A   Clear
5:53 PM 34.0 °F 26.6 °F 18.0 °F 52% 30.13 in 10.0 mi SSW 9.2 mph - N/A   Clear
6:53 PM 28.9 °F 21.1 °F 17.1 °F 61% 30.12 in 10.0 mi South 8.1 mph - N/A   Clear
7:53 PM 27.0 °F 18.0 °F 18.0 °F 69% 30.12 in 10.0 mi SSW 9.2 mph - N/A   Clear
8:53 PM 26.1 °F 16.8 °F 18.0 °F 71% 30.10 in 10.0 mi SSW 9.2 mph - N/A   Clear
9:53 PM 26.1 °F 16.8 °F 19.0 °F 75% 30.08 in 10.0 mi SSW 9.2 mph - N/A   Clear
10:53 PM 26.1 °F 16.8 °F 18.0 °F 71% 30.05 in 10.0 mi South 9.2 mph - N/A   Clear
11:53 PM 30.0 °F 21.7 °F 19.9 °F 66% 29.99 in 10.0 mi South 9.2 mph - N/A   Clear