Weather History for Helena, MT

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Wednesday, July 24, 2013

  Actual Average Record
Temperature  
Mean Temperature 77 °F 72 °F  
Max Temperature 97 °F 88 °F 100 °F (1929)
Min Temperature 57 °F 55 °F 40 °F (1918)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 26  
Since 1 June heating degree days 146 162  
Since 1 July heating degree days 0 26  
Cooling Degree Days 12 7  
Month to date cooling degree days 209 136  
Year to date cooling degree days 258 193  
Since 1 June cooling degree days 251 185  
Growing Degree Days 27 (Base 50)    
Moisture  
Dew Point 36 °F    
Average Humidity 28    
Maximum Humidity 51    
Minimum Humidity 5    
Precipitation  
Precipitation 0.00 in 0.03 in 0.56 in (1941)
Month to date precipitation 0.65 0.95  
Year to date precipitation 6.18 7.11  
Snow  
Snow 0.00 in 0.00 in 0.00 in (1999)
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 T  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 5 mph (WNW)    
Max Wind Speed 24 mph    
Max Gust Speed 32 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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Astronomy

Jul. 24, 2013 Rise Set
Actual Time 5:59 AM MDT 9:08 PM MDT
Civil Twilight 5:23 AM MDT 9:44 PM MDT
Nautical Twilight 4:36 AM MDT 10:31 PM MDT
Astronomical Twilight 3:37 AM MDT 11:29 PM MDT
Moon 10:01 PM MDT (7/24) 8:36 AM MDT (7/24)
Length of Visible Light 16h 21m
Length of Day
15h 09m
Waning Gibbous, 94% of the Moon is Illuminated
Jul 24
Waning Gibbous
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter
Aug 20
Full

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 66.9 °F 37.9 °F 34% 30.02 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 66.0 °F 39.0 °F 37% 30.03 in 10.0 mi West 3.5 mph - N/A   Clear
2:53 AM 62.1 °F 37.9 °F 41% 30.03 in 10.0 mi WSW 4.6 mph - N/A   Clear
3:53 AM 62.1 °F 37.0 °F 39% 30.03 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 60.1 °F 37.9 °F 44% 30.04 in 10.0 mi West 5.8 mph - N/A   Clear
5:53 AM 57.0 °F 39.0 °F 51% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 59.0 °F 39.9 °F 49% 30.05 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 62.1 °F 39.9 °F 44% 30.05 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 66.9 °F 42.1 °F 40% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Clear
9:53 AM 70.0 °F 42.1 °F 36% 30.04 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 75.9 °F 43.0 °F 31% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 80.1 °F 44.1 °F 28% 30.00 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 84.9 °F 41.0 °F 21% 29.97 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 90.0 °F 37.9 °F 16% 29.94 in 10.0 mi Variable 5.8 mph - N/A   Clear
2:53 PM 91.0 °F 33.1 °F 13% 29.92 in 10.0 mi Variable 4.6 mph - N/A   Clear
3:53 PM 93.9 °F 21.0 °F 7% 29.89 in 10.0 mi WNW 8.1 mph 19.6 mph N/A   Clear
4:53 PM 93.9 °F 10.9 °F 5% 29.89 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:53 PM 95.0 °F 16.0 °F 6% 29.88 in 10.0 mi WNW 8.1 mph 18.4 mph N/A   Clear
6:53 PM 93.9 °F 16.0 °F 6% 29.88 in 10.0 mi NNW 16.1 mph - N/A   Clear
7:53 PM 90.0 °F 24.1 °F 9% 29.88 in 10.0 mi NNW 12.7 mph 21.9 mph N/A   Clear
8:53 PM 84.0 °F 39.9 °F 21% 29.92 in 10.0 mi North 13.8 mph - N/A   Clear
9:53 PM 78.1 °F 42.1 °F 28% 29.97 in 10.0 mi NNW 5.8 mph - N/A   Clear
10:53 PM 73.0 °F 46.0 °F 38% 30.05 in 10.0 mi WNW 12.7 mph - N/A   Clear
11:53 PM 70.0 °F 46.9 °F 44% 30.06 in 10.0 mi WNW 11.5 mph - N/A   Clear