Weather History for Helena, MT

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Wednesday, September 24, 2014

  Actual Average Record
Temperature  
Mean Temperature 71 °F 54 °F  
Max Temperature 91 °F 69 °F 91 °F (2014)
Min Temperature 51 °F 40 °F 6 °F (1926)
Degree Days  
Heating Degree Days 0 11  
Month to date heating degree days 150 166  
Since 1 July heating degree days 197 235  
Cooling Degree Days 6 0  
Month to date cooling degree days 10 22  
Year to date cooling degree days 458 405  
Growing Degree Days 21 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 54    
Maximum Humidity 89    
Minimum Humidity 18    
Precipitation  
Precipitation 0.00 in 0.03 in 1.20 in (1920)
Month to date precipitation 0.46 0.91  
Year to date precipitation 9.32 9.46  
Snow  
Snow 0.00 in 0.00 in 1.00 in (1910)
Month to date snowfall T 0.9  
Since 1 July snowfall T 1.2  
Since 1 September snowfall T 0.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 7 mph (South)    
Max Wind Speed 25 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 24, 2014 Rise Set
Actual Time 7:17 AM MDT 7:21 PM MDT
Civil Twilight 6:47 AM MDT 7:51 PM MDT
Nautical Twilight 6:11 AM MDT 8:26 PM MDT
Astronomical Twilight 5:35 AM MDT 9:03 PM MDT
Moon 7:44 AM MDT (9/24) 7:29 PM MDT (9/24)
Length of Visible Light 13h 04m
Length of Day
12h 03m
New Moon, 0% of the Moon is Illuminated
Sep 24
New Moon
Oct 1
First Quarter
Oct 8
Full
Oct 15
Last Quarter
Oct 23
New

Hourly Weather History & Observations

Time (MDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 55.0 °F - 51.1 °F 86% 30.00 in 10.0 mi West 3.5 mph - N/A   Clear
1:53 AM 55.0 °F - 51.1 °F 86% 29.99 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 57.0 °F - 51.1 °F 81% 29.97 in 10.0 mi SW 3.5 mph - N/A   Clear
3:53 AM 54.0 °F - 50.0 °F 86% 29.99 in 10.0 mi ESE 3.5 mph - N/A   Clear
4:53 AM 54.0 °F - 50.0 °F 86% 30.00 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 53.1 °F - 50.0 °F 89% 30.00 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 53.1 °F - 50.0 °F 89% 30.01 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 53.1 °F - 48.9 °F 86% 30.02 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 55.0 °F - 51.1 °F 86% 30.02 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 60.1 °F - 51.1 °F 72% 30.01 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 64.0 °F - 52.0 °F 65% 29.99 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 71.1 °F - 52.0 °F 51% 29.96 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 78.1 °F - 54.0 °F 43% 29.92 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:53 PM 84.9 °F 83.6 °F 55.0 °F 36% 29.87 in 10.0 mi WNW 8.1 mph - N/A   Clear
2:53 PM 89.1 °F - 43.0 °F 20% 29.83 in 10.0 mi SSE 15.0 mph 24.2 mph N/A   Clear
3:53 PM 89.1 °F - 41.0 °F 19% 29.83 in 10.0 mi SSE 13.8 mph 21.9 mph N/A   Clear
4:53 PM 90.0 °F - 41.0 °F 18% 29.81 in 10.0 mi South 9.2 mph 18.4 mph N/A   Clear
5:53 PM 89.1 °F - 41.0 °F 19% 29.80 in 10.0 mi South 11.5 mph 19.6 mph N/A   Clear
6:53 PM 87.1 °F - 39.0 °F 18% 29.81 in 10.0 mi South 16.1 mph - N/A   Clear
7:53 PM 84.9 °F - 37.9 °F 19% 29.82 in 10.0 mi South 15.0 mph 24.2 mph N/A   Clear
8:53 PM 84.0 °F - 37.9 °F 19% 29.84 in 10.0 mi South 17.3 mph 31.1 mph N/A   Clear
9:53 PM 82.0 °F - 39.9 °F 22% 29.84 in 10.0 mi South 17.3 mph 27.6 mph N/A   Clear
10:53 PM 82.0 °F - 42.1 °F 24% 29.82 in 10.0 mi South 17.3 mph 28.8 mph N/A   Clear
11:53 PM 81.0 °F - 41.0 °F 24% 29.81 in 10.0 mi South 18.4 mph 29.9 mph N/A   Clear