Weather History for Helena, MT

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Sunday, June 16, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F 62 °F  
Max Temperature 76 °F 76 °F 95 °F (1933)
Min Temperature 46 °F 49 °F 36 °F (1949)
Degree Days  
Heating Degree Days 4 4  
Month to date heating degree days 106 92  
Since 1 June heating degree days 106 92  
Since 1 July heating degree days 7126 7497  
Cooling Degree Days 0 1  
Month to date cooling degree days 3 16  
Year to date cooling degree days 10 24  
Since 1 June cooling degree days 3 16  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 43    
Maximum Humidity 60    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.07 in 1.15 in (2010)
Month to date precipitation 1.42 1.22  
Year to date precipitation 5.00 5.32  
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 0.0  
Since 1 July snowfall 39.7 38.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 5 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jun. 16, 2013 Rise Set
Actual Time 5:33 AM MDT 9:23 PM MDT
Civil Twilight 4:54 AM MDT 10:02 PM MDT
Nautical Twilight 4:01 AM MDT 10:56 PM MDT
Astronomical Twilight 2:43 AM MDT 12:14 AM MDT
Moon 1:40 PM MDT (6/16) 1:05 AM MDT (6/16)
Length of Visible Light 17h 08m
Length of Day
15h 49m
Waxing Crescent, 50% of the Moon is Illuminated
Jun 16
Waxing Crescent
Jun 23
Full
Jun 29
Last Quarter
Jul 8
New
Jul 15
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 55.9 °F - 33.1 °F 42% 30.04 in 10.0 mi WSW 9.2 mph - N/A   Clear
1:53 AM 55.9 °F - 32.0 °F 40% 30.05 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:53 AM 51.1 °F - 36.0 °F 56% 30.08 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 50.0 °F - 35.1 °F 57% 30.08 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 46.9 °F - 34.0 °F 61% 30.08 in 10.0 mi West 4.6 mph - N/A   Clear
5:53 AM 46.0 °F 44.8 °F 34.0 °F 63% 30.09 in 10.0 mi NW 3.5 mph - N/A   Clear
6:53 AM 50.0 °F - 35.1 °F 57% 30.10 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 54.0 °F - 37.0 °F 53% 30.10 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 59.0 °F - 37.0 °F 44% 30.10 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 62.1 °F - 37.0 °F 39% 30.11 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 66.0 °F - 39.9 °F 38% 30.09 in 10.0 mi North 6.9 mph - N/A   Clear
11:53 AM 70.0 °F - 39.0 °F 32% 30.09 in 10.0 mi Variable 5.8 mph - N/A   Clear
12:53 PM 70.0 °F - 34.0 °F 27% 30.08 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 72.0 °F - 39.0 °F 30% 30.06 in 10.0 mi NNW 8.1 mph - N/A   Clear
2:53 PM 73.9 °F - 39.0 °F 28% 30.06 in 10.0 mi NNW 3.5 mph - N/A   Clear
3:53 PM 75.0 °F - 41.0 °F 29% 30.04 in 10.0 mi North 11.5 mph - N/A   Clear
4:53 PM 73.9 °F - 39.9 °F 29% 30.05 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM 75.9 °F - 45.0 °F 33% 30.05 in 10.0 mi North 10.4 mph - N/A   Clear
6:53 PM 73.9 °F - 46.0 °F 37% 30.05 in 10.0 mi North 10.4 mph - N/A   Clear
7:53 PM 71.1 °F - 48.0 °F 44% 30.06 in 10.0 mi North 8.1 mph - N/A   Clear
8:53 PM 66.9 °F - 46.0 °F 47% 30.08 in 10.0 mi NNW 9.2 mph - N/A   Clear
9:53 PM 63.0 °F - 44.1 °F 50% 30.10 in 10.0 mi West 6.9 mph - N/A   Clear
10:53 PM 62.1 °F - 44.1 °F 52% 30.10 in 10.0 mi West 9.2 mph - N/A   Clear
11:53 PM 60.1 °F - 44.1 °F 55% 30.11 in 10.0 mi WSW 6.9 mph - N/A   Clear