Weather History for Helena, MT

Change the Weather History Date:

Saturday, July 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F 70 °F  
Max Temperature 84 °F 86 °F 104 °F (2002)
Min Temperature 56 °F 54 °F 42 °F (1965)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 0 18  
Since 1 June heating degree days 146 154  
Since 1 July heating degree days 0 18  
Cooling Degree Days 5 6  
Month to date cooling degree days 115 63  
Year to date cooling degree days 164 120  
Since 1 June cooling degree days 157 112  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 39    
Maximum Humidity 62    
Minimum Humidity 15    
Precipitation  
Precipitation 0.00 in 0.04 in 0.45 in (1981)
Month to date precipitation 0.02 0.55  
Year to date precipitation 5.55 6.71  
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 30.00 in    
Wind  
Wind Speed 9 mph (NW)    
Max Wind Speed 22 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Jul. 13, 2013 Rise Set
Actual Time 5:48 AM MDT 9:18 PM MDT
Civil Twilight 5:10 AM MDT 9:56 PM MDT
Nautical Twilight 4:20 AM MDT 10:46 PM MDT
Astronomical Twilight 3:13 AM MDT 11:52 PM MDT
Moon 11:30 AM MDT (7/13) 11:36 PM MDT (7/13)
Length of Visible Light 16h 46m
Length of Day
15h 30m
Waxing Crescent, 26% of the Moon is Illuminated
Jul 13
Waxing Crescent
Jul 15
First Quarter
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 62.1 °F 43.0 °F 50% 29.88 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 57.9 °F 44.1 °F 60% 29.88 in 10.0 mi West 6.9 mph - N/A   Clear
2:53 AM 55.9 °F 43.0 °F 62% 29.89 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 57.9 °F 43.0 °F 58% 29.90 in 10.0 mi WSW 6.9 mph - N/A   Clear
4:53 AM 57.0 °F 42.1 °F 57% 29.92 in 10.0 mi WSW 6.9 mph - N/A   Clear
5:53 AM 57.0 °F 42.1 °F 57% 29.95 in 10.0 mi West 9.2 mph - N/A   Clear
6:53 AM 59.0 °F 43.0 °F 55% 29.96 in 10.0 mi West 6.9 mph - N/A   Clear
7:53 AM 64.9 °F 43.0 °F 45% 29.98 in 10.0 mi WNW 8.1 mph - N/A   Clear
8:53 AM 69.1 °F 42.1 °F 38% 30.00 in 10.0 mi WNW 6.9 mph - N/A   Clear
9:53 AM 70.0 °F 39.9 °F 33% 30.01 in 10.0 mi West 8.1 mph - N/A   Clear
10:53 AM 73.0 °F 39.9 °F 30% 30.01 in 10.0 mi NW 10.4 mph 16.1 mph N/A   Clear
11:53 AM 75.0 °F 39.0 °F 27% 30.01 in 10.0 mi Variable 5.8 mph - N/A   Clear
12:53 PM 79.0 °F 35.1 °F 20% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:53 PM 79.0 °F 33.1 °F 19% 30.02 in 10.0 mi North 9.2 mph 17.3 mph N/A   Clear
2:53 PM 81.0 °F 34.0 °F 18% 30.01 in 10.0 mi NNW 11.5 mph 21.9 mph N/A   Clear
3:53 PM 82.9 °F 33.1 °F 17% 30.00 in 10.0 mi NW 15.0 mph 20.7 mph N/A   Clear
4:53 PM 82.9 °F 32.0 °F 16% 29.99 in 10.0 mi NNW 12.7 mph 25.3 mph N/A   Clear
5:53 PM 82.0 °F 30.9 °F 16% 29.99 in 10.0 mi North 15.0 mph 19.6 mph N/A   Clear
6:53 PM 81.0 °F 30.0 °F 16% 30.01 in 10.0 mi North 10.4 mph - N/A   Clear
7:53 PM 78.1 °F 36.0 °F 22% 30.02 in 10.0 mi NE 9.2 mph - N/A   Clear
8:53 PM 72.0 °F 42.1 °F 34% 30.05 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
9:53 PM 68.0 °F 39.9 °F 36% 30.08 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
10:53 PM 66.9 °F 39.9 °F 37% 30.11 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
11:53 PM 64.9 °F 41.0 °F 42% 30.12 in 10.0 mi West 9.2 mph - N/A   Clear