Weather History for Helena, MT

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Tuesday, October 28, 2014

  Actual Average Record
Temperature  
Mean Temperature 41 °F 41 °F  
Max Temperature 56 °F 53 °F 76 °F (1937)
Min Temperature 26 °F 29 °F 3 °F (1991)
Degree Days  
Heating Degree Days 24 24  
Month to date heating degree days 328 526  
Since 1 July heating degree days 569 832  
Cooling Degree Days 0 0  
Month to date cooling degree days 3 0  
Year to date cooling degree days 469 406  
Moisture  
Dew Point 23 °F    
Average Humidity 54    
Maximum Humidity 81    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.01 in 0.65 in (1880)
Month to date precipitation 0.39 0.63  
Year to date precipitation 10.35 10.28  
Snow  
Snow 0.00 in 0.10 in 4.60 in (1912)
Month to date snowfall T 2.1  
Since 1 July snowfall T 3.7  
Since 1 September snowfall T 3.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 2 mph (SE)    
Max Wind Speed 12 mph    
Max Gust Speed 14 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 28, 2014 Rise Set
Actual Time 8:04 AM MDT 6:18 PM MDT
Civil Twilight 7:32 AM MDT 6:49 PM MDT
Nautical Twilight 6:57 AM MDT 7:25 PM MDT
Astronomical Twilight 6:22 AM MDT 8:00 PM MDT
Moon 12:43 PM MDT 10:22 PM MDT
Length of Visible Light 11h 17m
Length of Day
10h 14m
Waxing Crescent, 25% of the Moon is Illuminated
Oct 28
Waxing Crescent
Oct 30
First Quarter
Nov 6
Full
Nov 14
Last Quarter
Nov 22
New

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 39.0 °F 36.8 °F 23.0 °F 53% 30.20 in 10.0 mi SSW 3.5 mph - N/A   Clear
1:53 AM 37.0 °F 34.5 °F 23.0 °F 57% 30.20 in 10.0 mi WSW 3.5 mph - N/A   Clear
2:53 AM 34.0 °F - 23.0 °F 64% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 AM 34.0 °F - 21.9 °F 61% 30.21 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 30.9 °F - 21.9 °F 69% 30.22 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 28.9 °F - 21.0 °F 72% 30.24 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 27.0 °F - 21.0 °F 78% 30.27 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 28.0 °F - 21.9 °F 78% 30.27 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 30.0 °F - 23.0 °F 75% 30.28 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 35.1 °F - 25.0 °F 67% 30.27 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 36.0 °F - 25.0 °F 64% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
11:53 AM 42.1 °F - 25.0 °F 51% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:53 PM 46.9 °F - 25.0 °F 42% 30.18 in 10.0 mi NNE 3.5 mph - N/A   Clear
1:53 PM 48.0 °F - 21.0 °F 34% 30.17 in 10.0 mi East 3.5 mph - N/A   Clear
2:53 PM 51.1 °F - 21.9 °F 32% 30.15 in 10.0 mi SE 6.9 mph - N/A   Clear
3:53 PM 53.1 °F - 21.9 °F 30% 30.13 in 10.0 mi East 3.5 mph - N/A   Clear
4:53 PM 55.0 °F - 21.9 °F 28% 30.14 in 10.0 mi East 5.8 mph - N/A   Clear
5:53 PM 53.1 °F - 21.0 °F 29% 30.12 in 10.0 mi ESE 6.9 mph - N/A   Clear
6:53 PM 50.0 °F - 21.9 °F 33% 30.13 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 46.9 °F - 26.1 °F 44% 30.13 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
8:53 PM 45.0 °F 41.8 °F 26.1 °F 48% 30.14 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
9:53 PM 43.0 °F 41.3 °F 28.0 °F 56% 30.12 in 10.0 mi NNE 3.5 mph - N/A   Overcast
10:53 PM 46.0 °F - 27.0 °F 47% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 48.0 °F - 27.0 °F 44% 30.09 in 10.0 mi WSW 3.5 mph - N/A   Overcast