Weather History for Helena, MT

Change the Weather History Date:

Friday, December 7, 2012

  Actual Average Record
Temperature  
Mean Temperature 30 °F 23 °F  
Max Temperature 38 °F 33 °F 54 °F (1887)
Min Temperature 22 °F 13 °F -28 °F (1972)
Degree Days  
Heating Degree Days 35 42  
Month to date heating degree days 183 286  
Since 1 July heating degree days 1861 2168  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 531 406  
Moisture  
Dew Point 20 °F    
Average Humidity 59    
Maximum Humidity 85    
Minimum Humidity 32    
Precipitation  
Precipitation 0.05 in 0.01 in 0.51 in (1929)
Month to date precipitation 0.13 0.10  
Year to date precipitation 9.03 10.92  
Snow  
Snow 0.00 in 0.20 in 7.20 in (1929)
Month to date snowfall 0.0 1.6  
Since 1 July snowfall 17.0 10.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 9 mph (WSW)    
Max Wind Speed 26 mph    
Max Gust Speed 36 mph    
Visibility 8 miles    
Events Snow    
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

Dec. 07, 2012 Rise Set
Actual Time 7:58 AM MST 4:40 PM MST
Civil Twilight 7:24 AM MST 5:15 PM MST
Nautical Twilight 6:45 AM MST 5:53 PM MST
Astronomical Twilight 6:09 AM MST 6:30 PM MST
Moon 1:01 AM MST (12/7) 12:57 PM MST (12/7)
Length of Visible Light 9h 51m
Length of Day
8h 41m
Last Quarter, 38% of the Moon is Illuminated
Dec 7
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

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 23.0 °F 18.4 °F 18.0 °F 81% 30.03 in - Variable 3.5 mph - N/A   Partly Cloudy
1:53 AM 24.1 °F - 19.9 °F 84% 30.02 in - Calm Calm - N/A   Scattered Clouds
2:53 AM 28.0 °F - 19.9 °F 72% 30.01 in - Calm Calm - N/A   Scattered Clouds
3:53 AM 28.0 °F - 19.0 °F 69% 29.99 in - Calm Calm - N/A   Clear
4:53 AM 28.4 °F 23.3 °F 19.4 °F 69% 29.85 in - West 4.6 mph - N/A   Clear
5:53 AM 30.9 °F 21.7 °F 19.9 °F 64% 29.99 in - West 11.5 mph 21.9 mph N/A   Clear
6:53 AM 30.0 °F 25.2 °F 19.0 °F 64% 30.02 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
7:53 AM 30.9 °F 20.2 °F 19.9 °F 64% 30.02 in 10.0 mi West 15.0 mph - N/A   Clear
8:53 AM 32.0 °F 21.6 °F 18.0 °F 56% 30.04 in 10.0 mi WSW 15.0 mph 25.3 mph N/A   Clear
9:53 AM 33.1 °F 21.5 °F 17.1 °F 52% 30.03 in 10.0 mi West 19.6 mph 26.5 mph N/A   Clear
10:53 AM 36.0 °F 24.7 °F 16.0 °F 44% 30.02 in 10.0 mi WSW 21.9 mph 27.6 mph N/A   Clear
11:53 AM 36.0 °F 26.0 °F 15.1 °F 43% 30.00 in 10.0 mi West 17.3 mph 27.6 mph N/A   Clear
12:53 PM 37.0 °F 30.4 °F 15.1 °F 41% 29.99 in 10.0 mi WNW 9.2 mph - N/A   Clear
1:53 PM 37.9 °F 30.9 °F 10.9 °F 33% 29.94 in 10.0 mi WSW 10.4 mph - N/A   Clear
2:53 PM 37.0 °F 31.6 °F 16.0 °F 42% 29.90 in - South 6.9 mph - N/A   Clear
3:53 PM 36.0 °F 28.5 °F 16.0 °F 44% 29.87 in 10.0 mi SSW 10.4 mph - N/A   Clear
4:53 PM 36.0 °F - 16.0 °F 44% 29.83 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:53 PM 37.4 °F 30.8 °F 15.8 °F 41% 29.68 in - SW 9.2 mph 21.9 mph N/A   Mostly Cloudy
6:53 PM 36.0 °F 29.6 °F 16.0 °F 44% 29.78 in 9.0 mi WSW 8.1 mph - N/A   Scattered Clouds
7:53 PM 34.0 °F - 19.9 °F 56% 29.75 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy
8:53 PM 30.9 °F 23.5 °F 23.0 °F 72% 29.75 in 10.0 mi North 8.1 mph - N/A   Overcast
9:53 PM 30.0 °F - 26.1 °F 85% 29.76 in 10.0 mi Calm Calm - N/A   Overcast
10:07 PM 30.2 °F 26.7 °F 26.6 °F 86% 29.63 in 8.0 mi Variable 3.5 mph - 0.00 in Snow Light Snow
10:13 PM 30.2 °F 20.2 °F 26.6 °F 86% 29.63 in 1.0 mi WNW 12.7 mph 18.4 mph 0.00 in Snow Light Snow
10:23 PM 30.2 °F 19.3 °F 28.4 °F 93% 29.64 in 1.0 mi West 15.0 mph - 0.02 in Snow Light Snow
10:33 PM 28.4 °F 18.0 °F 26.6 °F 93% 29.62 in 1.0 mi WSW 12.7 mph - 0.05 in Snow Light Snow
10:40 PM 30.2 °F 18.1 °F 24.8 °F 80% 29.61 in 7.0 mi WSW 18.4 mph 26.5 mph 0.05 in Snow Light Snow
10:53 PM 30.0 °F 18.3 °F 23.0 °F 75% 29.73 in 7.0 mi West 17.3 mph 27.6 mph 0.05 in   Overcast
11:53 PM 30.0 °F 18.3 °F 21.9 °F 72% 29.73 in - WSW 17.3 mph - 0.00 in   Overcast