Weather History for Great Falls, MT

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Monday, September 30, 2013

  Actual Average Record
Temperature  
Mean Temperature 52 °F 51 °F  
Max Temperature 58 °F 64 °F 91 °F (1992)
Min Temperature 46 °F 38 °F 22 °F (1985)
Degree Days  
Heating Degree Days 13 14  
Month to date heating degree days 166 286  
Since 1 July heating degree days 190 407  
Cooling Degree Days 0 0  
Month to date cooling degree days 80 21  
Year to date cooling degree days 449 297  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 30 °F    
Average Humidity 45    
Maximum Humidity 59    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in 0.04 in 0.92 in (1977)
Month to date precipitation 0.84 1.42  
Year to date precipitation 9.73 12.75  
Snow  
Snow 0.00 in 0.10 in 1.90 in (1950)
Month to date snowfall T 1.2  
Since 1 July snowfall T 1.5  
Since 1 September snowfall T 1.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.58 in    
Wind  
Wind Speed 29 mph (SW)    
Max Wind Speed 53 mph    
Max Gust Speed 64 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 30, 2013 Rise Set
Actual Time 7:23 AM MDT 7:06 PM MDT
Civil Twilight 6:52 AM MDT 7:36 PM MDT
Nautical Twilight 6:17 AM MDT 8:12 PM MDT
Astronomical Twilight 5:40 AM MDT 8:48 PM MDT
Moon 2:48 AM MDT (9/30) 4:52 PM MDT (9/30)
Length of Visible Light 12h 43m
Length of Day
11h 42m
Waning Crescent, 18% of the Moon is Illuminated
Sep 30
Waning Crescent
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last 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 51.1 °F 33.1 °F 50% 29.57 in 10.0 mi SW 16.1 mph 25.3 mph N/A   Clear
1:53 AM 51.1 °F 33.1 °F 50% 29.52 in 10.0 mi SSW 19.6 mph 27.6 mph N/A   Clear
2:53 AM 52.0 °F 34.0 °F 50% 29.49 in 10.0 mi SW 16.1 mph 28.8 mph N/A   Clear
3:53 AM 54.0 °F 35.1 °F 49% 29.46 in 10.0 mi SW 26.5 mph 36.8 mph N/A   Clear
4:53 AM 54.0 °F 36.0 °F 51% 29.45 in 10.0 mi SW 27.6 mph 39.1 mph N/A   Clear
5:53 AM 54.0 °F 37.0 °F 53% 29.42 in 10.0 mi SSW 20.7 mph 34.5 mph N/A   Clear
6:53 AM 54.0 °F 37.9 °F 55% 29.44 in 10.0 mi South 15.0 mph 26.5 mph N/A   Mostly Cloudy
7:53 AM 55.0 °F 37.9 °F 53% 29.47 in 10.0 mi SW 18.4 mph 24.2 mph N/A   Overcast
8:53 AM 53.1 °F 39.0 °F 59% 29.53 in 10.0 mi WSW 19.6 mph 32.2 mph N/A   Overcast
9:53 AM 52.0 °F 28.0 °F 40% 29.52 in 10.0 mi SW 27.6 mph 33.4 mph N/A   Scattered Clouds
10:53 AM 50.0 °F 27.0 °F 41% 29.58 in 10.0 mi SW 20.7 mph 33.4 mph N/A   Clear
11:53 AM 53.1 °F 26.1 °F 35% 29.57 in 10.0 mi WSW 35.7 mph 44.9 mph N/A   Clear
12:53 PM 55.9 °F 24.1 °F 29% 29.57 in 10.0 mi WSW 38.0 mph 48.3 mph N/A   Clear
1:53 PM 55.9 °F 25.0 °F 30% 29.58 in 10.0 mi WSW 34.5 mph 46.0 mph N/A   Clear
2:53 PM 55.9 °F 25.0 °F 30% 29.61 in 10.0 mi WSW 32.2 mph 47.2 mph N/A   Scattered Clouds
3:53 PM 57.0 °F 26.1 °F 30% 29.60 in 10.0 mi WSW 36.8 mph 48.3 mph N/A   Partly Cloudy
4:53 PM 55.0 °F 25.0 °F 31% 29.59 in 10.0 mi SW 40.3 mph 51.8 mph N/A   Clear
5:53 PM 54.0 °F 24.1 °F 31% 29.60 in 10.0 mi SW 42.6 mph 56.4 mph N/A   Clear
6:53 PM 51.1 °F 26.1 °F 38% 29.65 in 10.0 mi SW 33.4 mph 50.6 mph N/A   Clear
7:53 PM 48.9 °F 26.1 °F 41% 29.68 in 10.0 mi SW 34.5 mph 44.9 mph N/A   Clear
8:53 PM 48.0 °F 28.0 °F 46% 29.73 in 10.0 mi SW 28.8 mph 44.9 mph N/A   Clear
9:53 PM 48.0 °F 28.0 °F 46% 29.74 in 10.0 mi SW 29.9 mph 41.4 mph N/A   Clear
10:53 PM 46.9 °F 28.0 °F 48% 29.76 in 10.0 mi SW 29.9 mph 42.6 mph N/A   Clear
11:53 PM 48.0 °F 28.0 °F 46% 29.78 in 10.0 mi SW 33.4 mph 40.3 mph N/A   Clear