Weather History for Great Falls, MT

Change the Weather History Date:

Wednesday, September 11, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 58 °F  
Max Temperature 83 °F 72 °F 93 °F (1919)
Min Temperature 47 °F 43 °F 29 °F (1989)
Degree Days  
Heating Degree Days 0 8  
Month to date heating degree days 3 71  
Since 1 July heating degree days 27 192  
Cooling Degree Days 0 1  
Month to date cooling degree days 57 13  
Year to date cooling degree days 426 289  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 55    
Maximum Humidity 86    
Minimum Humidity 23    
Precipitation  
Precipitation 0.00 in 0.05 in 1.29 in (1978)
Month to date precipitation 0.38 0.57  
Year to date precipitation 9.27 11.90  
Snow  
Snow 0.00 in 0.10 in 2.00 in (1949)
Month to date snowfall 0.0 0.3  
Since 1 July snowfall 0.0 0.6  
Since 1 September snowfall 0.0 0.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 9 mph (NE)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 11, 2013 Rise Set
Actual Time 6:58 AM MDT 7:45 PM MDT
Civil Twilight 6:26 AM MDT 8:16 PM MDT
Nautical Twilight 5:49 AM MDT 8:53 PM MDT
Astronomical Twilight 5:10 AM MDT 9:31 PM MDT
Moon 1:56 PM MDT (9/11) 11:17 PM MDT (9/11)
Length of Visible Light 13h 49m
Length of Day
12h 47m
Waxing Crescent, 39% of the Moon is Illuminated
Sep 11
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
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 55.0 °F 46.9 °F 74% 30.10 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 55.0 °F 45.0 °F 69% 30.12 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 54.0 °F 45.0 °F 72% 30.13 in 10.0 mi WNW 6.9 mph - N/A   Clear
3:53 AM 50.0 °F 44.1 °F 80% 30.15 in 10.0 mi West 5.8 mph - N/A   Clear
4:53 AM 50.0 °F 46.0 °F 86% 30.15 in 10.0 mi WSW 8.1 mph - N/A   Clear
5:53 AM 48.9 °F 44.1 °F 83% 30.18 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 48.0 °F 44.1 °F 86% 30.20 in 10.0 mi SW 6.9 mph - N/A   Clear
7:53 AM 52.0 °F 46.9 °F 83% 30.23 in 10.0 mi SW 5.8 mph - N/A   Clear
8:53 AM 59.0 °F 48.0 °F 67% 30.24 in 10.0 mi WSW 4.6 mph - N/A   Clear
9:53 AM 64.0 °F 48.9 °F 58% 30.25 in 10.0 mi West 3.5 mph - N/A   Clear
10:53 AM 70.0 °F 48.9 °F 47% 30.25 in 10.0 mi North 4.6 mph - N/A   Clear
11:53 AM 75.0 °F 48.0 °F 38% 30.24 in 10.0 mi NE 11.5 mph 16.1 mph N/A   Clear
12:53 PM 77.0 °F 43.0 °F 30% 30.25 in 10.0 mi East 13.8 mph 21.9 mph N/A   Clear
1:53 PM 79.0 °F 45.0 °F 30% 30.23 in 10.0 mi NNE 10.4 mph - N/A   Clear
2:53 PM 80.1 °F 42.1 °F 26% 30.22 in 10.0 mi NE 9.2 mph 20.7 mph N/A   Clear
3:53 PM 82.0 °F 41.0 °F 23% 30.21 in 10.0 mi ENE 16.1 mph 25.3 mph N/A   Clear
4:53 PM 81.0 °F 42.1 °F 25% 30.20 in 10.0 mi NE 17.3 mph 24.2 mph N/A   Clear
5:53 PM 80.1 °F 42.1 °F 26% 30.21 in 10.0 mi ENE 15.0 mph - N/A   Clear
6:53 PM 77.0 °F 42.1 °F 29% 30.21 in 10.0 mi ENE 16.1 mph - N/A   Clear
7:53 PM 72.0 °F 44.1 °F 37% 30.22 in 10.0 mi ENE 10.4 mph - N/A   Clear
8:53 PM 69.1 °F 44.1 °F 40% 30.23 in 10.0 mi ENE 9.2 mph - N/A   Clear
9:53 PM 64.0 °F 44.1 °F 48% 30.23 in 10.0 mi East 8.1 mph - N/A   Clear
10:53 PM 64.0 °F 44.1 °F 48% 30.23 in 10.0 mi East 12.7 mph - N/A   Clear
11:53 PM 64.0 °F 43.0 °F 46% 30.21 in 10.0 mi East 15.0 mph - N/A   Clear