Weather History for Great Falls, MT

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Thursday, May 16, 2013

  Actual Average Record
Temperature  
Mean Temperature 55 °F 52 °F  
Max Temperature 68 °F 65 °F 92 °F (1988)
Min Temperature 42 °F 39 °F 30 °F (1974)
Degree Days  
Heating Degree Days 10 13  
Month to date heating degree days 195 248  
Since 1 July heating degree days 6661 7365  
Cooling Degree Days 0 0  
Month to date cooling degree days 3 0  
Year to date cooling degree days 3 1  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 34 °F    
Average Humidity 56    
Maximum Humidity 83    
Minimum Humidity 28    
Precipitation  
Precipitation T in 0.08 in 1.71 in (1894)
Month to date precipitation 0.41 0.98  
Year to date precipitation 2.70 4.29  
Snow  
Snow 0.00 in 0.10 in 2.50 in (1955)
Month to date snowfall 0.0 1.9  
Since 1 July snowfall 76.2 62.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.83 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 17 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

May. 16, 2013 Rise Set
Actual Time 5:46 AM MDT 8:57 PM MDT
Civil Twilight 5:10 AM MDT 9:34 PM MDT
Nautical Twilight 4:22 AM MDT 10:22 PM MDT
Astronomical Twilight 3:23 AM MDT 11:22 PM MDT
Moon 11:31 AM MDT (5/16) 1:13 AM MDT (5/16)
Length of Visible Light 16h 24m
Length of Day
15h 10m
Waxing Crescent, 36% of the Moon is Illuminated
May 16
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
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 55.9 °F - 30.0 °F 37% 29.86 in 10.0 mi ESE 5.8 mph - N/A   Overcast
1:53 AM 50.0 °F - 32.0 °F 50% 29.86 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
2:53 AM 54.0 °F - 36.0 °F 51% 29.83 in 10.0 mi South 13.8 mph - N/A   Clear
3:53 AM 50.0 °F - 37.9 °F 63% 29.84 in 10.0 mi South 11.5 mph - N/A   Clear
4:53 AM 45.0 °F 41.2 °F 37.0 °F 74% 29.85 in 10.0 mi SSW 6.9 mph - N/A   Clear
5:53 AM 42.1 °F 36.6 °F 36.0 °F 79% 29.84 in 10.0 mi SW 9.2 mph - N/A   Clear
6:53 AM 45.0 °F 42.6 °F 39.0 °F 80% 29.85 in 10.0 mi West 4.6 mph - N/A   Clear
7:53 AM 50.0 °F - 32.0 °F 50% 29.86 in 10.0 mi NNW 3.5 mph - N/A   Clear
8:53 AM 55.0 °F - 36.0 °F 49% 29.85 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 59.0 °F - 34.0 °F 39% 29.85 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:53 AM 62.1 °F - 36.0 °F 38% 29.82 in 10.0 mi Variable 5.8 mph - N/A   Clear
11:53 AM 63.0 °F - 32.0 °F 31% 29.82 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
12:53 PM 63.0 °F - 32.0 °F 31% 29.81 in 10.0 mi South 6.9 mph - N/A   Overcast
1:53 PM 64.9 °F - 33.1 °F 31% 29.81 in 10.0 mi NW 10.4 mph - N/A   Overcast
2:53 PM 66.0 °F - 32.0 °F 28% 29.78 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
3:53 PM 64.9 °F - 30.9 °F 28% 29.78 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
4:53 PM 66.0 °F - 32.0 °F 28% 29.80 in 10.0 mi NNW 10.4 mph 20.7 mph N/A   Scattered Clouds
5:53 PM 64.0 °F - 33.1 °F 31% 29.81 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
6:53 PM 62.1 °F - 33.1 °F 34% 29.81 in 10.0 mi North 11.5 mph - N/A   Overcast
7:53 PM 60.1 °F - 35.1 °F 39% 29.82 in 10.0 mi NNW 10.4 mph - N/A   Clear
8:53 PM 57.0 °F - 35.1 °F 44% 29.83 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
9:53 PM 55.0 °F - 35.1 °F 47% 29.84 in 10.0 mi North 4.6 mph - N/A   Overcast
10:53 PM 55.0 °F - 35.1 °F 47% 29.84 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
11:53 PM 54.0 °F - 42.1 °F 64% 29.84 in 10.0 mi NE 4.6 mph - 0.00 in   Overcast