Weather History for Great Falls, MT

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Sunday, May 18, 2014

  Actual Average Record
Temperature  
Mean Temperature 52 °F 52 °F  
Max Temperature 63 °F 65 °F 90 °F (1897)
Min Temperature 41 °F 39 °F 27 °F (1977)
Degree Days  
Heating Degree Days 13 13  
Month to date heating degree days 322 274  
Since 1 July heating degree days 7706 7391  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 1  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 40 °F    
Average Humidity 63    
Maximum Humidity 92    
Minimum Humidity 34    
Precipitation  
Precipitation T in 0.09 in 1.63 in (1959)
Month to date precipitation 1.27 1.15  
Year to date precipitation 6.76 4.46  
Snow  
Snow 0.00 in 0.10 in 4.30 in (2003)
Month to date snowfall 3.7 2.0  
Since 1 July snowfall 76.4 62.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.67 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 18, 2014 Rise Set
Actual Time 5:44 AM MDT 8:59 PM MDT
Civil Twilight 5:07 AM MDT 9:36 PM MDT
Nautical Twilight 4:19 AM MDT 10:25 PM MDT
Astronomical Twilight 3:18 AM MDT 11:27 PM MDT
Moon No Moon Rise 9:41 AM MDT (5/18)
Length of Visible Light 16h 29m
Length of Day
15h 14m
Waning Gibbous, 80% of the Moon is Illuminated
May 18
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 12
Full

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 52.0 °F - 45.0 °F 77% 29.73 in 10.0 mi SSW 13.8 mph - N/A   Clear
1:53 AM 48.9 °F - 44.1 °F 83% 29.73 in 10.0 mi SSW 8.1 mph - N/A   Clear
2:53 AM 44.1 °F 40.8 °F 42.1 °F 93% 29.73 in 10.0 mi SW 5.8 mph - N/A   Clear
3:53 AM 44.1 °F 40.8 °F 42.1 °F 93% 29.73 in 10.0 mi SW 5.8 mph - N/A   Clear
4:53 AM 43.0 °F 38.8 °F 39.9 °F 89% 29.72 in 10.0 mi SW 6.9 mph - N/A   Clear
5:53 AM 44.1 °F 39.5 °F 41.0 °F 89% 29.71 in 10.0 mi South 8.1 mph - N/A   Clear
6:53 AM 48.0 °F - 45.0 °F 89% 29.69 in 10.0 mi SSW 4.6 mph - N/A   Clear
7:53 AM 52.0 °F - 46.9 °F 83% 29.69 in 10.0 mi SSW 4.6 mph - N/A   Clear
8:53 AM 55.9 °F - 46.0 °F 69% 29.67 in 10.0 mi South 6.9 mph - N/A   Clear
9:53 AM 60.1 °F - 43.0 °F 53% 29.65 in 10.0 mi SW 6.9 mph - N/A   Clear
10:53 AM 61.0 °F - 41.0 °F 48% 29.65 in 10.0 mi WSW 8.1 mph - N/A   Clear
11:53 AM 60.1 °F - 41.0 °F 49% 29.64 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
12:53 PM 59.0 °F - 39.0 °F 48% 29.64 in 10.0 mi WSW 16.1 mph - N/A   Overcast
1:53 PM 61.0 °F - 39.0 °F 44% 29.64 in 10.0 mi WSW 13.8 mph - N/A   Overcast
2:53 PM 59.0 °F - 39.0 °F 48% 29.66 in 10.0 mi SW 18.4 mph 24.2 mph N/A   Overcast
3:53 PM 59.0 °F - 37.9 °F 46% 29.65 in 10.0 mi SSW 10.4 mph - N/A   Overcast
4:53 PM 62.1 °F - 34.0 °F 35% 29.63 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
5:53 PM 62.1 °F - 34.0 °F 35% 29.62 in 10.0 mi SW 6.9 mph - N/A   Clear
6:53 PM 61.0 °F - 37.0 °F 41% 29.64 in 10.0 mi South 9.2 mph - N/A   Clear
7:50 PM 57.2 °F - 35.6 °F 44% 29.67 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
7:53 PM 57.9 °F - 37.0 °F 46% 29.65 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
8:53 PM 53.1 °F - 39.9 °F 61% 29.66 in 10.0 mi WSW 8.1 mph - N/A   Overcast
9:53 PM 53.1 °F - 39.9 °F 61% 29.66 in 10.0 mi SSW 10.4 mph - 0.00 in   Overcast
10:53 PM 48.9 °F - 39.9 °F 71% 29.68 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
11:53 PM 50.0 °F - 39.9 °F 68% 29.70 in 10.0 mi SSW 11.5 mph - N/A   Overcast