Weather History for Butte, MT

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Friday, October 19, 2012

  Actual Average Record
Temperature  
Mean Temperature 45 °F 40 °F  
Max Temperature 61 °F 54 °F 74 °F (1974)
Min Temperature 28 °F 26 °F 8 °F (1905)
Degree Days  
Heating Degree Days 20 25  
Month to date heating degree days 429 420  
Since 1 July heating degree days 834 1041  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 30 °F    
Average Humidity 62    
Maximum Humidity 89    
Minimum Humidity 35    
Precipitation  
Precipitation 0.03 in 0.02 in 0.76 in (2009)
Month to date precipitation 0.26 0.52  
Year to date precipitation 7.69 11.40  
Snow  
Snow 0.00 in - - ()
Month to date snowfall  
Year to date snowfall  
Since 1 July snowfall  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 6 mph (WSW)    
Max Wind Speed 24 mph    
Max Gust Speed 32 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 19, 2012 Rise Set
Actual Time 7:53 AM MDT 6:35 PM MDT
Civil Twilight 7:22 AM MDT 7:06 PM MDT
Nautical Twilight 6:47 AM MDT 7:40 PM MDT
Astronomical Twilight 6:13 AM MDT 8:15 PM MDT
Moon 12:50 PM MDT (10/19) 10:07 PM MDT (10/19)
Length of Visible Light 11h 43m
Length of Day
10h 42m
Waxing Crescent, 24% of the Moon is Illuminated
Oct 19
Waxing Crescent
Oct 21
First Quarter
Oct 29
Full
Nov 6
Last Quarter
Nov 13
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 30.9 °F 26.2 °F 24.1 °F 76% 30.07 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:53 AM 30.0 °F - 23.0 °F 75% 30.04 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 28.9 °F - 24.1 °F 82% 30.03 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 30.0 °F - 24.1 °F 79% 30.01 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 30.0 °F 26.5 °F 24.1 °F 79% 30.00 in 10.0 mi Variable 3.5 mph - N/A   Clear
5:53 AM 30.9 °F 24.3 °F 25.0 °F 79% 29.94 in 10.0 mi Variable 6.9 mph - N/A   Clear
6:53 AM 28.9 °F - 24.1 °F 82% 29.99 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 30.0 °F - 24.1 °F 79% 30.00 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 33.1 °F 30.0 °F 26.1 °F 75% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Overcast
9:53 AM 48.0 °F - 27.0 °F 44% 29.94 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
10:53 AM 54.0 °F - 26.1 °F 34% 29.92 in 10.0 mi WSW 10.4 mph 17.3 mph N/A   Partly Cloudy
11:53 AM 54.0 °F - 28.9 °F 38% 29.91 in 10.0 mi SW 12.7 mph 27.6 mph N/A   Overcast
12:53 PM 57.0 °F - 30.9 °F 37% 29.88 in 10.0 mi WSW 20.7 mph 28.8 mph N/A   Partly Cloudy
1:53 PM 57.9 °F - 30.9 °F 36% 29.85 in 10.0 mi WSW 10.4 mph 21.9 mph N/A   Clear
2:53 PM 57.9 °F - 32.0 °F 37% 29.83 in 10.0 mi WSW 15.0 mph 21.9 mph N/A   Partly Cloudy
3:53 PM 57.9 °F - 32.0 °F 37% 29.81 in 10.0 mi WSW 12.7 mph - N/A   Overcast
4:53 PM 57.9 °F - 30.9 °F 36% 29.80 in 10.0 mi WSW 10.4 mph 18.4 mph N/A   Overcast
5:53 PM 54.0 °F - 34.0 °F 47% 29.82 in 10.0 mi WSW 15.0 mph 28.8 mph N/A   Overcast
6:53 PM 51.1 °F - 35.1 °F 54% 29.84 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
7:53 PM 51.1 °F - 35.1 °F 54% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
8:53 PM 51.1 °F - 36.0 °F 56% 29.79 in 10.0 mi WNW 5.8 mph - N/A   Overcast
9:53 PM 48.0 °F - 39.0 °F 71% 29.74 in 9.0 mi West 3.5 mph - 0.00 in Rain Light Rain
10:53 PM 46.0 °F 43.9 °F 42.1 °F 86% 29.68 in 10.0 mi NE 4.6 mph - 0.03 in   Overcast
11:53 PM 44.1 °F - 41.0 °F 89% 29.66 in 10.0 mi Calm Calm - N/A   Overcast