Weather History for Helena, MT

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Saturday, March 15, 2014

  Actual Average Record
Temperature  
Mean Temperature 44 °F 36 °F  
Max Temperature 50 °F 48 °F 72 °F (1994)
Min Temperature 37 °F 24 °F -20 °F (1906)
Degree Days  
Heating Degree Days 21 29  
Month to date heating degree days 465 470  
Since 1 July heating degree days 5981 6031  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 21 °F    
Average Humidity 39    
Maximum Humidity 52    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.01 in 0.23 in (1982)
Month to date precipitation 0.56 0.24  
Year to date precipitation 3.09 0.90  
Snow  
Snow 0.00 in 0.20 in 2.90 in (1982)
Month to date snowfall 3.5 3.1  
Since 1 July snowfall 41.5 30.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 14 mph (West)    
Max Wind Speed 26 mph    
Max Gust Speed 36 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Mar. 15, 2014 Rise Set
Actual Time 7:40 AM MDT 7:33 PM MDT
Civil Twilight 7:10 AM MDT 8:03 PM MDT
Nautical Twilight 6:35 AM MDT 8:39 PM MDT
Astronomical Twilight 5:59 AM MDT 9:15 PM MDT
Moon 6:56 PM MDT (3/15) 6:56 AM MDT (3/15)
Length of Visible Light 12h 53m
Length of Day
11h 53m
Waxing Gibbous, 99% of the Moon is Illuminated
Mar 15
Waxing Gibbous
Mar 16
Full
Mar 23
Last Quarter
Mar 30
New
Apr 7
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 39.9 °F 30.2 °F 23.0 °F 51% 30.04 in 10.0 mi West 20.7 mph 34.5 mph N/A   Scattered Clouds
1:53 AM 39.0 °F 29.6 °F 23.0 °F 53% 30.06 in 10.0 mi WNW 18.4 mph 34.5 mph N/A   Mostly Cloudy
2:53 AM 39.9 °F 31.4 °F 21.9 °F 49% 30.07 in 10.0 mi West 16.1 mph 29.9 mph N/A   Mostly Cloudy
3:53 AM 39.9 °F 32.9 °F 21.9 °F 49% 30.12 in 10.0 mi West 11.5 mph 25.3 mph N/A   Mostly Cloudy
4:53 AM 39.0 °F 31.0 °F 23.0 °F 53% 30.17 in 10.0 mi West 13.8 mph - N/A   Overcast
5:53 AM 39.0 °F 29.3 °F 21.9 °F 50% 30.21 in 10.0 mi West 19.6 mph 28.8 mph N/A   Clear
6:53 AM 39.0 °F 29.3 °F 23.0 °F 53% 30.25 in 10.0 mi West 19.6 mph 27.6 mph N/A   Mostly Cloudy
7:53 AM 37.9 °F 28.2 °F 21.9 °F 53% 30.30 in 10.0 mi West 18.4 mph 25.3 mph N/A   Overcast
8:53 AM 39.9 °F 30.8 °F 21.9 °F 49% 30.33 in 10.0 mi West 18.4 mph 27.6 mph N/A   Mostly Cloudy
9:53 AM 43.0 °F 35.7 °F 21.0 °F 42% 30.35 in 10.0 mi West 15.0 mph 28.8 mph N/A   Clear
10:53 AM 45.0 °F 37.4 °F 21.0 °F 39% 30.38 in 10.0 mi WNW 18.4 mph 25.3 mph N/A   Clear
11:53 AM 46.0 °F 38.0 °F 21.0 °F 37% 30.37 in 10.0 mi West 21.9 mph 26.5 mph N/A   Clear
12:53 PM 48.0 °F - 19.0 °F 32% 30.37 in 10.0 mi West 15.0 mph 25.3 mph N/A   Clear
1:53 PM 50.0 °F - 18.0 °F 28% 30.35 in 10.0 mi West 17.3 mph 24.2 mph N/A   Clear
2:53 PM 48.9 °F - 17.1 °F 28% 30.34 in 10.0 mi West 17.3 mph 25.3 mph N/A   Clear
3:53 PM 48.9 °F - 18.0 °F 29% 30.33 in 10.0 mi West 19.6 mph - N/A   Clear
4:53 PM 48.0 °F - 19.9 °F 33% 30.34 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
5:53 PM 48.9 °F - 16.0 °F 27% 30.33 in 10.0 mi WSW 19.6 mph 28.8 mph N/A   Scattered Clouds
6:53 PM 48.0 °F - 19.0 °F 32% 30.35 in 10.0 mi West 12.7 mph - N/A   Overcast
7:53 PM 46.0 °F 39.6 °F 21.0 °F 37% 30.37 in 10.0 mi West 15.0 mph 20.7 mph N/A   Partly Cloudy
8:53 PM 46.0 °F 43.1 °F 21.9 °F 39% 30.38 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
9:53 PM 42.1 °F 38.4 °F 25.0 °F 51% 30.37 in 10.0 mi WNW 5.8 mph - N/A   Overcast
10:53 PM 41.0 °F - 24.1 °F 51% 30.34 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 42.1 °F 40.2 °F 24.1 °F 49% 30.32 in 10.0 mi Variable 3.5 mph - N/A   Clear