Helena, MT

10:56 PM MDT on June 26, 2017 (GMT -0600)
Helena Regional

Weather History for KHLN - September, 2012

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Monday, September 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 65 °F 60 °F  
Max Temperature 79 °F 75 °F 91 °F (1966)
Min Temperature 51 °F 45 °F 30 °F (1921)
Degree Days  
Heating Degree Days 0 6  
Month to date heating degree days 28 47  
Since 1 July heating degree days 49 116  
Cooling Degree Days 0 1  
Month to date cooling degree days 5 15  
Year to date cooling degree days 529 398  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 30 °F    
Average Humidity 29    
Maximum Humidity 46    
Minimum Humidity 11    
Precipitation  
Precipitation 0.00 in 0.04 in 0.84 in (1988)
Month to date precipitation 0.00 0.41  
Year to date precipitation 6.47 8.96  
Snow  
Snow 0.00 in 0.00 in 0.70 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 29.81 in    
Wind  
Wind Speed 12 mph (West)    
Max Wind Speed 26 mph    
Max Gust Speed 33 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 10, 2012 Rise Set
Actual Time 7:00 AM MDT 7:48 PM MDT
Civil Twilight 6:29 AM MDT 8:18 PM MDT
Nautical Twilight 5:52 AM MDT 8:55 PM MDT
Astronomical Twilight 5:14 AM MDT 9:33 PM MDT
Moon 1:08 AM MDT (9/10) 4:34 PM MDT (9/10)
Length of Visible Light 13h 49m
Length of Day
12h 48m
Waning Crescent, 29% of the Moon is Illuminated
Sep 10
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
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 66.9 °F 36.0 °F 32% 29.78 in 10.0 mi WSW 13.8 mph - N/A   Scattered Clouds
1:53 AM 64.9 °F 37.0 °F 36% 29.78 in 10.0 mi West 9.2 mph - N/A   Clear
2:53 AM 64.0 °F 37.0 °F 37% 29.78 in 10.0 mi West 12.7 mph - N/A   Clear
3:53 AM 63.0 °F 36.0 °F 37% 29.78 in 10.0 mi WSW 13.8 mph - N/A   Clear
4:53 AM 61.0 °F 34.0 °F 36% 29.78 in 10.0 mi West 8.1 mph - N/A   Clear
5:53 AM 59.0 °F 33.1 °F 38% 29.78 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 54.0 °F 34.0 °F 47% 29.80 in 10.0 mi WNW 3.5 mph - N/A   Clear
7:53 AM 53.1 °F 33.1 °F 47% 29.82 in 10.0 mi East 3.5 mph - N/A   Clear
8:53 AM 59.0 °F 33.1 °F 38% 29.83 in 10.0 mi ESE 4.6 mph - N/A   Overcast
9:53 AM 66.0 °F 33.1 °F 29% 29.82 in 8.0 mi North 6.9 mph - N/A   Mostly Cloudy
10:40 AM 69.8 °F 30.2 °F 23% 29.85 in 7.0 mi West 17.3 mph - N/A   Smoke
10:53 AM 70.0 °F 30.0 °F 23% 29.79 in 6.0 mi West 16.1 mph 20.7 mph N/A   Haze
11:53 AM 73.0 °F 28.0 °F 19% 29.78 in 5.0 mi West 20.7 mph 28.8 mph N/A   Haze
12:53 PM 75.2 °F 26.6 °F 17% 29.82 in 5.0 mi WNW 19.6 mph 29.9 mph N/A   Haze
1:53 PM 77.0 °F 24.1 °F 14% 29.75 in 4.0 mi WNW 20.7 mph 28.8 mph N/A   Haze
2:53 PM 77.0 °F 21.9 °F 13% 29.74 in 5.0 mi West 15.0 mph 24.2 mph N/A   Haze
3:53 PM 77.0 °F 19.9 °F 12% 29.74 in 3.0 mi WNW 15.0 mph 24.2 mph N/A   Haze
4:53 PM 75.0 °F 21.9 °F 14% 29.76 in 3.0 mi WNW 13.8 mph 23.0 mph N/A   Haze
5:53 PM 73.0 °F 26.1 °F 17% 29.78 in 4.0 mi West 18.4 mph 25.3 mph N/A   Haze
6:53 PM 70.0 °F 28.0 °F 21% 29.80 in 5.0 mi WNW 12.7 mph - N/A   Haze
7:53 PM 64.9 °F 30.9 °F 28% 29.84 in 10.0 mi WNW 13.8 mph - N/A   Overcast
8:53 PM 62.1 °F 30.9 °F 31% 29.88 in 10.0 mi WSW 12.7 mph 23.0 mph N/A   Scattered Clouds
9:53 PM 61.0 °F 30.9 °F 32% 29.89 in 10.0 mi West 12.7 mph - N/A   Clear
10:53 PM 59.0 °F 32.0 °F 36% 29.91 in 10.0 mi WSW 12.7 mph - N/A   Clear
11:53 PM 55.9 °F 32.0 °F 40% 29.93 in 10.0 mi WSW 9.2 mph - N/A   Clear