Weather History for Helena, MT

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Sunday, November 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 54 °F 38 °F  
Max Temperature 60 °F 49 °F 69 °F (1945)
Min Temperature 47 °F 27 °F -5 °F (1959)
Degree Days  
Heating Degree Days 11 27  
Month to date heating degree days 71 106  
Since 1 July heating degree days 846 1014  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 531 406  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 37 °F    
Average Humidity 50    
Maximum Humidity 56    
Minimum Humidity 43    
Precipitation  
Precipitation T in 0.02 in 0.67 in (1927)
Month to date precipitation 0.02 0.06  
Year to date precipitation 7.14 10.39  
Snow  
Snow 0.00 in 0.10 in 4.50 in (1968)
Month to date snowfall 0.0 0.4  
Since 1 July snowfall T 4.4  
Since 1 September snowfall T 4.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.28 in    
Wind  
Wind Speed 9 mph (WSW)    
Max Wind Speed 24 mph    
Max Gust Speed 32 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Nov. 04, 2012 Rise Set
Actual Time 7:14 AM MST 5:07 PM MST
Civil Twilight 6:43 AM MST 5:39 PM MST
Nautical Twilight 6:07 AM MST 6:15 PM MST
Astronomical Twilight 5:31 AM MST 6:50 PM MST
Moon 9:46 PM MST (11/4) 12:04 PM MST (11/4)
Length of Visible Light 10h 56m
Length of Day
9h 52m
Waning Gibbous, 71% of the Moon is Illuminated
Nov 4
Waning Gibbous
Nov 6
Last Quarter
Nov 13
New
Nov 20
First Quarter
Nov 28
Full

Hourly Weather History & Observations

Time (MST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 50.0 °F 35.1 °F 57% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 AM 48.0 °F 37.0 °F 66% 30.19 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
1:53 AM 46.9 °F 37.9 °F 71% 30.20 in 10.0 mi Calm Calm - 0.00 in   Overcast
2:53 AM 51.1 °F 36.0 °F 56% 30.22 in 10.0 mi WSW 4.6 mph - N/A   Overcast
3:53 AM 50.0 °F 36.0 °F 59% 30.22 in 10.0 mi WSW 8.1 mph - N/A   Overcast
4:53 AM 52.0 °F 35.1 °F 53% 30.21 in 10.0 mi WSW 19.6 mph 25.3 mph N/A   Clear
5:53 AM 53.1 °F 34.0 °F 48% 30.21 in 10.0 mi WSW 13.8 mph 23.0 mph N/A   Partly Cloudy
6:53 AM 52.0 °F 35.1 °F 53% 30.24 in 10.0 mi WSW 8.1 mph 16.1 mph N/A   Clear
7:53 AM 52.0 °F 35.1 °F 53% 30.27 in 10.0 mi West 4.6 mph - N/A   Overcast
8:53 AM 53.1 °F 36.0 °F 52% 30.30 in 10.0 mi WSW 10.4 mph 17.3 mph N/A   Mostly Cloudy
9:53 AM 53.1 °F 37.0 °F 55% 30.33 in 10.0 mi West 18.4 mph 23.0 mph N/A   Partly Cloudy
10:53 AM 55.0 °F 37.0 °F 51% 30.33 in 10.0 mi West 12.7 mph 21.9 mph N/A   Mostly Cloudy
11:53 AM 57.0 °F 37.0 °F 47% 30.32 in 10.0 mi WSW 15.0 mph 23.0 mph N/A   Overcast
12:53 PM 57.0 °F 37.0 °F 47% 30.31 in 10.0 mi West 15.0 mph 21.9 mph N/A   Mostly Cloudy
1:53 PM 59.0 °F 37.0 °F 44% 30.31 in 10.0 mi West 13.8 mph 23.0 mph N/A   Mostly Cloudy
2:53 PM 57.9 °F 36.0 °F 44% 30.30 in 10.0 mi West 15.0 mph 19.6 mph N/A   Mostly Cloudy
3:53 PM 55.9 °F 37.9 °F 51% 30.32 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
4:53 PM 55.9 °F 37.0 °F 49% 30.31 in 10.0 mi West 9.2 mph - N/A   Overcast
5:53 PM 55.9 °F 37.9 °F 51% 30.32 in 10.0 mi WSW 9.2 mph - N/A   Overcast
6:53 PM 55.0 °F 37.9 °F 53% 30.34 in 10.0 mi West 6.9 mph - N/A   Overcast
7:53 PM 55.0 °F 37.9 °F 53% 30.33 in 10.0 mi WSW 5.8 mph - N/A   Overcast
8:53 PM 53.1 °F 37.9 °F 57% 30.33 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
9:53 PM 54.0 °F 37.9 °F 55% 30.32 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
10:53 PM 54.0 °F 37.9 °F 55% 30.32 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy