Weather History for Helena, MT

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Saturday, November 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 18 °F 29 °F  
Max Temperature 31 °F 39 °F 63 °F (1942)
Min Temperature 4 °F 19 °F -27 °F (1985)
Degree Days  
Heating Degree Days 47 36  
Month to date heating degree days 698 710  
Since 1 July heating degree days 1550 1618  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 589 406  
Moisture  
Dew Point 9 °F    
Average Humidity 68    
Maximum Humidity 88    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.01 in 0.33 in (1893)
Month to date precipitation 0.15 0.37  
Year to date precipitation 10.29 10.70  
Snow  
Snow 0.00 in 0.10 in 10.00 in (1893)
Month to date snowfall 1.5 3.3  
Since 1 July snowfall 3.5 7.3  
Since 1 September snowfall 3.5 7.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.67 in    
Wind  
Wind Speed 1 mph (WNW)    
Max Wind Speed 6 mph    
Max Gust Speed 6 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Nov. 23, 2013 Rise Set
Actual Time 7:41 AM MST 4:46 PM MST
Civil Twilight 7:08 AM MST 5:20 PM MST
Nautical Twilight 6:30 AM MST 5:57 PM MST
Astronomical Twilight 5:54 AM MST 6:33 PM MST
Moon 10:27 PM MST (11/23) 11:53 AM MST (11/23)
Length of Visible Light 10h 12m
Length of Day
9h 05m
Waning Gibbous, 69% of the Moon is Illuminated
Nov 23
Waning Gibbous
Nov 25
Last Quarter
Dec 2
New
Dec 9
First Quarter
Dec 17
Full

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 10.9 °F - 5.0 °F 77% 30.82 in 8.0 mi Calm Calm - N/A   Clear
1:53 AM 12.0 °F 5.9 °F 5.0 °F 73% 30.80 in 10.0 mi East 3.5 mph - N/A   Clear
2:53 AM 12.0 °F - 7.0 °F 80% 30.80 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 9.0 °F - 3.9 °F 80% 30.81 in 9.0 mi Calm Calm - N/A   Clear
4:53 AM 10.0 °F 3.6 °F 5.0 °F 80% 30.81 in 10.0 mi SE 3.5 mph - N/A   Clear
5:53 AM 5.0 °F -2.1 °F 1.9 °F 87% 30.82 in 8.0 mi WNW 3.5 mph - N/A   Clear
6:53 AM 8.1 °F - 3.0 °F 80% 30.80 in 9.0 mi Calm Calm - N/A   Clear
7:53 AM 7.0 °F - 3.0 °F 84% 30.81 in 9.0 mi Calm Calm - N/A   Clear
8:53 AM 10.0 °F - 6.1 °F 84% 30.80 in 9.0 mi Calm Calm - N/A   Clear
9:53 AM 16.0 °F - 8.1 °F 71% 30.77 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 19.0 °F - 10.0 °F 68% 30.75 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 21.9 °F - 12.0 °F 66% 30.72 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 25.0 °F 20.7 °F 12.0 °F 58% 30.68 in 10.0 mi WNW 3.5 mph - N/A   Clear
1:53 PM 28.0 °F - 12.9 °F 53% 30.63 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM 30.0 °F 26.5 °F 12.9 °F 49% 30.58 in 10.0 mi NNW 3.5 mph - N/A   Clear
3:53 PM 28.9 °F 25.2 °F 12.9 °F 51% 30.57 in 10.0 mi WNW 3.5 mph - N/A   Clear
4:53 PM 26.1 °F 21.9 °F 12.9 °F 58% 30.56 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:53 PM 24.1 °F - 12.9 °F 62% 30.57 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 21.0 °F - 12.0 °F 68% 30.55 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 21.0 °F 13.4 °F 12.0 °F 68% 30.54 in 10.0 mi WSW 5.8 mph - N/A   Clear
8:53 PM 18.0 °F - 10.9 °F 74% 30.53 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 16.0 °F - 10.0 °F 77% 30.51 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 15.1 °F - 9.0 °F 77% 30.49 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 15.1 °F - 9.0 °F 77% 30.46 in 10.0 mi Calm Calm - N/A   Clear