Weather History for Great Falls, MT

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Monday, October 31, 2011

  Actual Average Record
Temperature  
Mean Temperature 43 °F 40 °F  
Max Temperature 55 °F 51 °F 76 °F (1897)
Min Temperature 30 °F 29 °F -9 °F (1984)
Degree Days  
Heating Degree Days 22 25  
Month to date heating degree days 520 613  
Since 1 July heating degree days 696 1020  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 1  
Year to date cooling degree days 365 298  
Moisture  
Dew Point 28 °F    
Average Humidity 43    
Maximum Humidity 61    
Minimum Humidity 24    
Precipitation  
Precipitation T in 0.02 in 0.39 in (1973)
Month to date precipitation 2.24 0.86  
Year to date precipitation 15.85 13.61  
Snow  
Snow 0.00 in 0.20 in 3.50 in (1973)
Month to date snowfall 0.1 4.1  
Since 1 July snowfall 0.1 5.6  
Since 1 September snowfall 0.1 5.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 19 mph (WSW)    
Max Wind Speed 37 mph    
Max Gust Speed 46 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 31, 2011 Rise Set
Actual Time 8:07 AM MDT 6:10 PM MDT
Civil Twilight 7:35 AM MDT 6:42 PM MDT
Nautical Twilight 6:59 AM MDT 7:18 PM MDT
Astronomical Twilight 6:23 AM MDT 7:53 PM MDT
Moon 1:26 PM MDT (10/31) 10:42 PM MDT (10/31)
Length of Visible Light 11h 06m
Length of Day
10h 02m
Waxing Crescent, 30% of the Moon is Illuminated
Oct 31
Waxing Crescent
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter
Nov 24
New

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 53.1 °F - 37.9 °F 57% 29.82 in 10.0 mi SW 16.1 mph 24.2 mph N/A   Clear
1:53 AM 54.0 °F - 37.9 °F 55% 29.81 in 10.0 mi SW 23.0 mph 31.1 mph N/A   Clear
2:53 AM 52.0 °F - 37.9 °F 59% 29.80 in 10.0 mi SW 16.1 mph 24.2 mph N/A   Clear
3:53 AM 51.1 °F - 37.0 °F 59% 29.78 in 10.0 mi SW 13.8 mph - N/A   Clear
4:53 AM 53.6 °F - 37.4 °F 54% 29.77 in 10.0 mi SW 20.7 mph 29.9 mph N/A   Clear
5:53 AM 51.1 °F - 37.0 °F 59% 29.76 in 10.0 mi SW 13.8 mph - N/A   Clear
6:53 AM 50.0 °F - 37.0 °F 61% 29.77 in 10.0 mi SW 11.5 mph - N/A   Partly Cloudy
7:53 AM 50.0 °F - 37.9 °F 63% 29.77 in 10.0 mi SW 15.0 mph - N/A   Clear
8:53 AM 52.0 °F - 37.0 °F 57% 29.79 in 10.0 mi WSW 15.0 mph - N/A   Overcast
9:53 AM 52.0 °F - 37.0 °F 57% 29.81 in 10.0 mi West 20.7 mph 24.2 mph 0.00 in   Overcast
10:53 AM 52.0 °F - 30.0 °F 43% 29.84 in 10.0 mi West 25.3 mph 35.7 mph N/A   Mostly Cloudy
11:53 AM 54.0 °F - 24.1 °F 31% 29.86 in 10.0 mi West 29.9 mph 40.3 mph N/A   Clear
12:53 PM 55.0 °F - 24.1 °F 30% 29.89 in 10.0 mi West 31.1 mph 43.7 mph N/A   Mostly Cloudy
1:53 PM 53.1 °F - 19.0 °F 26% 29.90 in 10.0 mi West 31.1 mph 38.0 mph N/A   Clear
2:53 PM 53.1 °F - 18.0 °F 25% 29.90 in 10.0 mi West 24.2 mph 33.4 mph N/A   Clear
3:53 PM 50.0 °F - 18.0 °F 28% 29.93 in 10.0 mi West 31.1 mph 39.1 mph N/A   Clear
4:53 PM 46.0 °F 39.3 °F 17.1 °F 31% 29.97 in 10.0 mi West 16.1 mph 25.3 mph N/A   Clear
5:53 PM 44.1 °F 35.4 °F 19.0 °F 37% 30.00 in 10.0 mi West 21.9 mph 28.8 mph N/A   Clear
6:53 PM 39.0 °F 31.4 °F 21.0 °F 49% 30.06 in 10.0 mi WSW 12.7 mph - N/A   Partly Cloudy
7:53 PM 39.2 °F 31.6 °F 19.4 °F 45% 30.05 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
8:53 PM 35.1 °F 27.4 °F 19.9 °F 54% 30.10 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
9:53 PM 35.1 °F 26.9 °F 19.9 °F 54% 30.12 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
10:53 PM 33.1 °F 23.9 °F 19.0 °F 56% 30.13 in 10.0 mi SW 12.7 mph - N/A   Clear
11:53 PM 33.1 °F 23.4 °F 19.0 °F 56% 30.12 in 10.0 mi WSW 13.8 mph - N/A   Clear