Weather History for Great Falls, MT

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Tuesday, August 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 69 °F 68 °F  
Max Temperature 87 °F 84 °F 98 °F (1892)
Min Temperature 50 °F 51 °F 40 °F (1918)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 8 16  
Since 1 June heating degree days 196 257  
Since 1 July heating degree days 24 66  
Cooling Degree Days 4 4  
Month to date cooling degree days 25 62  
Year to date cooling degree days 229 225  
Since 1 June cooling degree days 226 218  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 62    
Maximum Humidity 100    
Minimum Humidity 23    
Precipitation  
Precipitation 0.03 in 0.05 in 1.07 in (1974)
Month to date precipitation 0.89 0.58  
Year to date precipitation 8.70 10.34  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.1  
Since 1 June snowfall 0.0 0.4  
Since 1 July snowfall 0.0 0.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 7 mph (ENE)    
Max Wind Speed 21 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 13, 2013 Rise Set
Actual Time 6:19 AM MDT 8:40 PM MDT
Civil Twilight 5:45 AM MDT 9:14 PM MDT
Nautical Twilight 5:02 AM MDT 9:56 PM MDT
Astronomical Twilight 4:14 AM MDT 10:44 PM MDT
Moon 1:51 PM MDT (8/13) 11:43 PM MDT (8/13)
Length of Visible Light 15h 28m
Length of Day
14h 20m
Waxing Crescent, 42% of the Moon is Illuminated
Aug 13
Waxing Crescent
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 64.9 °F 51.1 °F 61% 30.07 in 10.0 mi ENE 18.4 mph 24.2 mph N/A   Clear
1:53 AM 61.0 °F 54.0 °F 78% 30.08 in 10.0 mi East 13.8 mph - N/A   Clear
2:53 AM 57.0 °F 55.0 °F 93% 30.08 in 10.0 mi SE 3.5 mph - N/A   Clear
3:53 AM 55.0 °F 53.1 °F 93% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 50.0 °F 50.0 °F 100% 30.06 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 51.1 °F 50.0 °F 96% 30.06 in 7.0 mi WSW 4.6 mph - N/A   Clear
6:53 AM 52.0 °F 50.0 °F 93% 30.09 in 10.0 mi SW 9.2 mph - N/A   Clear
7:53 AM 57.0 °F 52.0 °F 83% 30.08 in 10.0 mi SW 4.6 mph - N/A   Clear
8:53 AM 64.0 °F 48.9 °F 58% 30.09 in 10.0 mi SW 6.9 mph - N/A   Clear
9:53 AM 69.1 °F 50.0 °F 51% 30.08 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 71.1 °F 52.0 °F 51% 30.07 in 10.0 mi Variable 3.5 mph - N/A   Clear
11:53 AM 73.9 °F 51.1 °F 45% 30.09 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 80.1 °F 50.0 °F 35% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 82.0 °F 48.0 °F 30% 30.02 in 10.0 mi ENE 9.2 mph - N/A   Clear
2:53 PM 84.0 °F 46.9 °F 27% 30.02 in 10.0 mi ENE 11.5 mph 16.1 mph N/A   Clear
3:53 PM 84.9 °F 46.0 °F 26% 30.00 in 10.0 mi ENE 10.4 mph - N/A   Clear
4:53 PM 84.0 °F 45.0 °F 25% 29.99 in 10.0 mi East 4.6 mph - N/A   Clear
5:53 PM 84.9 °F 43.0 °F 23% 29.97 in 10.0 mi ENE 9.2 mph - N/A   Partly Cloudy
6:53 PM 82.0 °F 44.1 °F 26% 29.98 in 10.0 mi ENE 8.1 mph - N/A   Overcast
7:46 PM 78.8 °F 48.2 °F 34% 30.05 in 10.0 mi SE 10.4 mph - N/A Thunderstorm Scattered Clouds
7:53 PM 78.8 °F 48.2 °F 34% 29.98 in 10.0 mi SE 8.1 mph - N/A Thunderstorm Partly Cloudy
8:05 PM 75.2 °F 48.2 °F 38% 30.07 in 10.0 mi North 17.3 mph 23.0 mph N/A Thunderstorm Thunderstorm
8:11 PM 69.8 °F 51.8 °F 53% 30.07 in 10.0 mi North 20.7 mph - N/A Thunderstorm Thunderstorm
8:23 PM 68.0 °F 53.6 °F 60% 30.08 in 10.0 mi North 17.3 mph 23.0 mph N/A Thunderstorm Thunderstorm
8:53 PM 66.0 °F 52.0 °F 60% 30.02 in 10.0 mi NNE 8.1 mph - N/A   Clear
9:53 PM 69.1 °F 52.0 °F 54% 30.02 in 10.0 mi ENE 13.8 mph - N/A   Clear
10:53 PM 69.1 °F 48.9 °F 49% 30.06 in 10.0 mi North 11.5 mph 21.9 mph N/A   Overcast
11:53 PM 63.0 °F 55.0 °F 75% 30.07 in 10.0 mi ENE 13.8 mph - 0.01 in Rain Light Rain