Weather History for Helena, MT

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Wednesday, November 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 33 °F 33 °F  
Max Temperature 43 °F 44 °F 65 °F (2001)
Min Temperature 22 °F 23 °F -20 °F (1955)
Degree Days  
Heating Degree Days 32 32  
Month to date heating degree days 414 402  
Since 1 July heating degree days 1189 1310  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 531 406  
Moisture  
Dew Point 25 °F    
Average Humidity 70    
Maximum Humidity 88    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.01 in 0.48 in (1903)
Month to date precipitation 1.45 0.22  
Year to date precipitation 8.57 10.55  
Snow  
Snow 0.00 in 0.20 in 6.20 in (1903)
Month to date snowfall 17.0 1.8  
Since 1 July snowfall 17.0 5.8  
Since 1 September snowfall 17.0 5.5  
Snow Depth 6.00 in    
Sea Level Pressure  
Sea Level Pressure 30.28 in    
Wind  
Wind Speed 6 mph (WSW)    
Max Wind Speed 18 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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Date:

Astronomy

Nov. 14, 2012 Rise Set
Actual Time 7:29 AM MST 4:54 PM MST
Civil Twilight 6:56 AM MST 5:27 PM MST
Nautical Twilight 6:20 AM MST 6:04 PM MST
Astronomical Twilight 5:44 AM MST 6:40 PM MST
Moon 8:26 AM MST (11/14) 5:43 PM MST (11/14)
Length of Visible Light 10h 31m
Length of Day
9h 25m
New Moon, 1% of the Moon is Illuminated
Nov 14
New Moon
Nov 20
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 27.0 °F - 23.0 °F 85% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:53 AM 28.0 °F 24.2 °F 24.1 °F 85% 30.25 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
2:53 AM 26.1 °F 21.9 °F 23.0 °F 88% 30.25 in 10.0 mi South 3.5 mph - N/A   Overcast
3:53 AM 28.9 °F 25.2 °F 24.1 °F 82% 30.22 in 10.0 mi SW 3.5 mph - N/A   Overcast
4:53 AM 25.0 °F - 21.9 °F 88% 30.24 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:53 AM 28.0 °F 24.2 °F 23.0 °F 81% 30.23 in 10.0 mi South 3.5 mph - N/A   Overcast
6:53 AM 27.0 °F 21.6 °F 23.0 °F 85% 30.23 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
7:53 AM 27.0 °F - 23.0 °F 85% 30.23 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 AM 26.1 °F 19.4 °F 21.9 °F 84% 30.25 in 10.0 mi South 5.8 mph - N/A   Clear
9:53 AM 32.0 °F - 24.1 °F 73% 30.25 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 28.0 °F 24.2 °F 23.0 °F 81% 30.28 in 10.0 mi SSE 3.5 mph - N/A   Clear
11:53 AM 36.0 °F 30.3 °F 27.0 °F 70% 30.25 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
12:53 PM 42.1 °F 33.9 °F 28.9 °F 60% 30.23 in 10.0 mi West 17.3 mph 24.2 mph N/A   Clear
1:00 PM 42.8 °F 35.4 °F 28.4 °F 57% 30.11 in 10.0 mi West 15.0 mph 20.7 mph N/A   Clear
1:53 PM 43.0 °F 36.4 °F 28.0 °F 56% 30.24 in 10.0 mi West 12.7 mph - N/A   Clear
2:53 PM 41.0 °F 35.8 °F 27.0 °F 57% 30.26 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
3:53 PM 41.0 °F 35.2 °F 25.0 °F 53% 30.27 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
4:53 PM 39.0 °F 36.8 °F 27.0 °F 62% 30.30 in 10.0 mi SW 3.5 mph - N/A   Overcast
5:53 PM 37.9 °F 32.1 °F 28.0 °F 68% 30.31 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
6:53 PM 37.0 °F 31.0 °F 26.1 °F 65% 30.34 in 10.0 mi WSW 8.1 mph - N/A   Clear
7:53 PM 35.1 °F 28.6 °F 26.1 °F 70% 30.35 in 10.0 mi West 8.1 mph - N/A   Clear
8:53 PM 37.0 °F 31.6 °F 27.0 °F 67% 30.36 in 10.0 mi WSW 6.9 mph - N/A   Overcast
9:53 PM 37.9 °F 32.7 °F 27.0 °F 65% 30.36 in 10.0 mi SW 6.9 mph - N/A   Overcast
10:53 PM 30.0 °F 26.5 °F 24.1 °F 79% 30.39 in 10.0 mi NE 3.5 mph - N/A   Clear
11:53 PM 37.0 °F 31.0 °F 26.1 °F 65% 30.35 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy