Weather History for Butte, MT

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Monday, December 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 25 °F 17 °F  
Max Temperature 30 °F 29 °F 57 °F (1990)
Min Temperature 19 °F 5 °F -34 °F (1961)
Degree Days  
Heating Degree Days 40 48  
Month to date heating degree days 379 465  
Since 1 July heating degree days 2641 2955  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 18 °F    
Average Humidity 72    
Maximum Humidity 91    
Minimum Humidity 53    
Precipitation  
Precipitation 0.03 in 0.01 in 0.36 in (1916)
Month to date precipitation 0.19 0.17  
Year to date precipitation 8.95 12.43  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 7 mph (NNW)    
Max Wind Speed 24 mph    
Max Gust Speed 33 mph    
Visibility 5 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 10, 2012 Rise Set
Actual Time 8:01 AM MST 4:44 PM MST
Civil Twilight 7:26 AM MST 5:19 PM MST
Nautical Twilight 6:49 AM MST 5:57 PM MST
Astronomical Twilight 6:12 AM MST 6:33 PM MST
Moon 4:43 AM MST (12/10) 2:41 PM MST (12/10)
Length of Visible Light 9h 52m
Length of Day
8h 43m
Waning Crescent, 10% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:08 AM 19.4 °F - 15.8 °F 86% 29.99 in 1.5 mi Calm Calm - 0.00 in Snow Light Snow
12:53 AM 19.9 °F 14.9 °F 17.1 °F 89% 30.16 in 0.8 mi NNW 3.5 mph - 0.01 in Snow Light Snow
1:20 AM 19.4 °F 14.3 °F 17.6 °F 93% 29.97 in 1.2 mi NW 3.5 mph - 0.00 in Snow Light Snow
1:32 AM 19.4 °F 14.3 °F 17.6 °F 93% 29.97 in 2.0 mi West 3.5 mph - 0.00 in Snow Light Snow
1:53 AM 19.9 °F 14.9 °F 17.1 °F 89% 30.14 in 2.0 mi West 3.5 mph - 0.00 in Snow Light Snow
2:08 AM 19.4 °F - 17.6 °F 93% 29.95 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
2:53 AM 19.9 °F - 17.1 °F 89% 30.12 in 10.0 mi Calm Calm - 0.00 in   Overcast
3:53 AM 19.9 °F - 17.1 °F 89% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
4:10 AM 19.4 °F 11.5 °F 17.6 °F 93% 29.91 in 1.8 mi North 5.8 mph - 0.00 in Snow Light Snow
4:20 AM 21.2 °F 14.9 °F 17.6 °F 86% 29.90 in 3.0 mi North 4.6 mph - 0.00 in Snow Light Snow
4:53 AM 19.9 °F 14.9 °F 18.0 °F 92% 30.08 in 9.0 mi NW 3.5 mph - 0.00 in   Overcast
5:53 AM 19.9 °F 14.9 °F 17.1 °F 89% 30.08 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
6:53 AM 23.0 °F 17.0 °F 17.1 °F 78% 30.08 in 10.0 mi NNE 4.6 mph - N/A   Overcast
7:53 AM 26.1 °F 13.6 °F 15.1 °F 63% 30.06 in 10.0 mi NW 16.1 mph 24.2 mph N/A   Scattered Clouds
8:29 AM 26.6 °F 12.4 °F 15.8 °F 64% 29.93 in 1.8 mi NW 21.9 mph 31.1 mph 0.00 in Snow Light Snow
8:46 AM 26.6 °F 12.4 °F 15.8 °F 64% 29.94 in 2.5 mi NW 21.9 mph 29.9 mph 0.00 in Snow Light Snow
8:53 AM 26.1 °F 14.0 °F 16.0 °F 66% 30.09 in 2.5 mi NW 15.0 mph 29.9 mph 0.00 in Snow Light Snow
9:00 AM 26.6 °F 15.2 °F 15.8 °F 64% 29.95 in 8.0 mi NW 13.8 mph 23.0 mph 0.00 in   Overcast
9:53 AM 27.0 °F 13.2 °F 12.9 °F 56% 30.12 in 7.0 mi NW 20.7 mph 25.3 mph 0.00 in Snow Light Snow
10:53 AM 27.0 °F 14.3 °F 14.0 °F 58% 30.13 in 10.0 mi WNW 17.3 mph 27.6 mph 0.00 in   Overcast
11:53 AM 28.0 °F 17.0 °F 14.0 °F 56% 30.11 in 9.0 mi NW 13.8 mph 24.2 mph 0.00 in   Overcast
12:53 PM 27.0 °F 18.0 °F 16.0 °F 63% 30.11 in 10.0 mi NNW 9.2 mph - N/A   Overcast
1:53 PM 28.9 °F 18.2 °F 14.0 °F 54% 30.08 in 10.0 mi WNW 13.8 mph - N/A   Overcast
2:53 PM 28.9 °F 17.7 °F 16.0 °F 58% 30.07 in 5.0 mi WNW 15.0 mph - 0.00 in Snow Light Snow
3:53 PM 28.0 °F 19.3 °F 17.1 °F 63% 30.08 in 10.0 mi WNW 9.2 mph - 0.00 in   Overcast
4:53 PM 27.0 °F 19.5 °F 19.0 °F 72% 30.09 in 7.0 mi NW 6.9 mph - 0.00 in Snow Light Snow
5:28 PM 26.6 °F 17.5 °F 19.4 °F 74% 29.95 in 2.0 mi NW 9.2 mph 19.6 mph 0.00 in Snow Light Snow
5:38 PM 26.6 °F 16.2 °F 19.4 °F 74% 29.96 in 4.0 mi NW 11.5 mph - 0.00 in Snow Light Snow
5:53 PM 26.1 °F 17.6 °F 21.0 °F 81% 30.11 in 3.0 mi NW 8.1 mph - 0.00 in Snow Light Snow
6:53 PM 26.1 °F 21.9 °F 21.0 °F 81% 30.09 in 6.0 mi NNE 3.5 mph - 0.00 in Snow Light Snow
7:14 PM 26.6 °F 22.6 °F 21.2 °F 80% 29.96 in 1.8 mi NNE 3.5 mph - 0.00 in Snow Light Snow
7:28 PM 26.6 °F 20.0 °F 21.2 °F 80% 29.96 in 2.5 mi NE 5.8 mph - 0.01 in Snow Light Snow
7:42 PM 26.6 °F 19.1 °F 21.2 °F 80% 29.96 in 4.0 mi NNE 6.9 mph - 0.01 in Snow Light Snow
7:53 PM 26.1 °F 20.5 °F 21.9 °F 84% 30.08 in 5.0 mi NNE 4.6 mph - 0.01 in Snow Light Snow
8:11 PM 26.6 °F - 21.2 °F 80% 29.96 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
8:20 PM 24.8 °F - 21.2 °F 86% 29.96 in 1.0 mi Calm Calm - 0.00 in Snow Light Snow
8:53 PM 25.0 °F - 21.9 °F 88% 30.08 in 1.0 mi Calm Calm - 0.01 in Snow Light Snow
9:23 PM 24.8 °F - 21.2 °F 86% 29.95 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
9:33 PM 24.8 °F - 21.2 °F 86% 29.95 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
9:53 PM 25.0 °F - 21.9 °F 88% 30.06 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
10:53 PM 25.0 °F - 21.9 °F 88% 30.06 in 10.0 mi Calm Calm - 0.00 in   Overcast
11:53 PM 26.1 °F 21.9 °F 21.0 °F 81% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Overcast