Weather History for Great Falls, MT

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Sunday, September 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F 56 °F  
Max Temperature 83 °F 70 °F 95 °F (2000)
Min Temperature 45 °F 42 °F 29 °F (1965)
Degree Days  
Heating Degree Days 1 9  
Month to date heating degree days 4 106  
Since 1 July heating degree days 28 227  
Cooling Degree Days 0 1  
Month to date cooling degree days 64 17  
Year to date cooling degree days 433 293  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 58    
Maximum Humidity 86    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in 0.04 in 0.75 in (1987)
Month to date precipitation 0.38 0.76  
Year to date precipitation 9.27 12.09  
Snow  
Snow 0.00 in 0.00 in 2.40 in (1965)
Month to date snowfall 0.0 0.4  
Since 1 July snowfall 0.0 0.7  
Since 1 September snowfall 0.0 0.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 7 mph (ESE)    
Max Wind Speed 26 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 15, 2013 Rise Set
Actual Time 7:03 AM MDT 7:36 PM MDT
Civil Twilight 6:32 AM MDT 8:07 PM MDT
Nautical Twilight 5:55 AM MDT 8:44 PM MDT
Astronomical Twilight 5:17 AM MDT 9:22 PM MDT
Moon 5:18 PM MDT (9/15) 2:31 AM MDT (9/15)
Length of Visible Light 13h 35m
Length of Day
12h 33m
Waxing Gibbous, 82% of the Moon is Illuminated
Sep 15
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 57.9 °F 42.1 °F 56% 30.08 in 10.0 mi East 13.8 mph - N/A   Clear
1:53 AM 55.9 °F 42.1 °F 60% 30.08 in 10.0 mi East 9.2 mph - N/A   Clear
2:53 AM 55.0 °F 42.1 °F 62% 30.08 in 10.0 mi ESE 8.1 mph - N/A   Clear
3:53 AM 53.1 °F 45.0 °F 74% 30.09 in 10.0 mi Calm Calm - N/A   Clear
4:12 AM 50.0 °F 42.8 °F 76% 30.14 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:53 AM 52.0 °F 45.0 °F 77% 30.09 in 10.0 mi East 3.5 mph - N/A   Clear
5:53 AM 48.0 °F 43.0 °F 83% 30.10 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 46.0 °F 42.1 °F 86% 30.11 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 50.0 °F 45.0 °F 83% 30.12 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 55.9 °F 45.0 °F 67% 30.10 in 10.0 mi NNW 3.5 mph - N/A   Clear
9:53 AM 62.1 °F 45.0 °F 53% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 68.0 °F 46.0 °F 45% 30.06 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 70.0 °F 46.0 °F 42% 30.04 in 10.0 mi Variable 4.6 mph - N/A   Clear
12:53 PM 73.0 °F 46.9 °F 39% 30.01 in 10.0 mi Variable 5.8 mph - N/A   Clear
1:53 PM 77.0 °F 46.9 °F 34% 29.98 in 10.0 mi ENE 4.6 mph - N/A   Clear
2:53 PM 80.1 °F 46.9 °F 31% 29.94 in 10.0 mi ESE 8.1 mph - N/A   Clear
3:53 PM 81.0 °F 46.9 °F 30% 29.91 in 10.0 mi ENE 8.1 mph - N/A   Clear
4:53 PM 79.0 °F 46.9 °F 32% 29.90 in 10.0 mi East 4.6 mph - N/A   Clear
5:53 PM 79.0 °F 48.0 °F 34% 29.88 in 10.0 mi ESE 3.5 mph - N/A   Clear
6:53 PM 78.1 °F 48.9 °F 36% 29.88 in 10.0 mi ESE 5.8 mph - N/A   Clear
7:53 PM 72.0 °F 50.0 °F 46% 29.87 in 10.0 mi South 8.1 mph - N/A   Clear
8:29 PM 73.4 °F 50.0 °F 44% 29.92 in 10.0 mi South 13.8 mph - N/A   Partly Cloudy
8:53 PM 72.0 °F 50.0 °F 46% 29.86 in 10.0 mi South 17.3 mph 23.0 mph N/A   Clear
9:53 PM 69.1 °F 50.0 °F 51% 29.85 in 10.0 mi South 11.5 mph - N/A   Clear
10:53 PM 69.1 °F 51.1 °F 53% 29.83 in 10.0 mi South 19.6 mph 25.3 mph N/A   Clear
11:53 PM 69.1 °F 52.0 °F 54% 29.80 in 10.0 mi South 18.4 mph 27.6 mph N/A   Clear