Weather History for Butte, MT

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Friday, December 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 14 °F 17 °F  
Max Temperature 26 °F 29 °F 55 °F (1924)
Min Temperature 2 °F 5 °F -26 °F (1967)
Degree Days  
Heating Degree Days 51 48  
Month to date heating degree days 558 657  
Since 1 July heating degree days 2820 3147  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 13 °F    
Average Humidity 82    
Maximum Humidity 95    
Minimum Humidity 68    
Precipitation  
Precipitation T in 0.01 in 0.40 in (1915)
Month to date precipitation 0.24 0.23  
Year to date precipitation 9.00 12.49  
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 2 mph (South)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 6 miles    
Events Fog , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 14, 2012 Rise Set
Actual Time 8:04 AM MST 4:45 PM MST
Civil Twilight 7:30 AM MST 5:19 PM MST
Nautical Twilight 6:52 AM MST 5:57 PM MST
Astronomical Twilight 6:15 AM MST 6:34 PM MST
Moon 9:09 AM MST (12/14) 6:46 PM MST (12/14)
Length of Visible Light 9h 49m
Length of Day
8h 40m
Waxing Crescent, 3% of the Moon is Illuminated
Dec 14
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 9.0 °F - 5.0 °F 84% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
1:53 AM 7.0 °F - 3.9 °F 87% 29.93 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:53 AM 6.1 °F - 1.9 °F 83% 29.92 in 5.0 mi Calm Calm - N/A   Partly Cloudy
3:53 AM 1.9 °F -10.6 °F -0.9 °F 88% 29.93 in 8.0 mi SSE 6.9 mph - N/A   Clear
4:53 AM 6.8 °F -0.1 °F 3.2 °F 85% 29.69 in 10.0 mi SE 3.5 mph - N/A   Overcast
5:53 AM 12.0 °F - 8.1 °F 84% 29.91 in 9.0 mi Calm Calm - N/A   Overcast
6:53 AM 10.9 °F - 7.0 °F 84% 29.90 in 10.0 mi Calm Calm - N/A   Overcast
7:53 AM 12.9 °F - 9.0 °F 84% 29.90 in 7.0 mi Calm Calm - N/A   Overcast
8:53 AM 14.0 °F - 10.9 °F 88% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 17.1 °F 8.7 °F 12.9 °F 84% 29.89 in 8.0 mi SSE 5.8 mph - N/A   Overcast
10:53 AM 21.0 °F - 16.0 °F 81% 29.87 in 10.0 mi Calm Calm - N/A   Overcast
11:53 AM 24.1 °F - 18.0 °F 77% 29.83 in 7.0 mi Calm Calm - N/A   Overcast
12:53 PM 23.0 °F 18.4 °F 17.1 °F 78% 29.81 in 10.0 mi NNW 3.5 mph - N/A   Overcast
1:53 PM 24.1 °F 16.0 °F 17.1 °F 75% 29.79 in 10.0 mi NNW 6.9 mph - N/A   Overcast
2:53 PM 26.1 °F - 18.0 °F 71% 29.79 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 26.1 °F - 18.0 °F 71% 29.83 in 10.0 mi Calm Calm - N/A   Overcast
4:53 PM 25.0 °F - 17.1 °F 72% 29.83 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 23.0 °F 18.4 °F 18.0 °F 81% 29.84 in 7.0 mi SW 3.5 mph - 0.00 in Snow Light Snow
6:38 PM 24.8 °F 19.1 °F 19.4 °F 80% 29.68 in 2.0 mi NW 4.6 mph - 0.00 in Snow Light Snow
6:53 PM 23.0 °F 17.0 °F 19.9 °F 88% 29.87 in 1.2 mi NW 4.6 mph - 0.00 in Snow Light Snow
7:11 PM 23.0 °F 18.4 °F 19.4 °F 86% 29.69 in 2.0 mi NW 3.5 mph - 0.00 in Snow Light Snow
7:26 PM 23.0 °F 17.0 °F 19.4 °F 86% 29.69 in 4.0 mi WNW 4.6 mph - 0.00 in Snow Light Snow
7:53 PM 23.0 °F - 19.9 °F 88% 29.88 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
8:12 PM 19.4 °F 11.5 °F 17.6 °F 93% 29.70 in 6.0 mi SSE 5.8 mph - 0.00 in   Overcast
8:39 PM 19.4 °F 14.3 °F 17.6 °F 93% 29.71 in 6.0 mi South 3.5 mph - 0.00 in   Overcast
8:53 PM 19.9 °F - 18.0 °F 92% 29.90 in 6.0 mi Calm Calm - 0.00 in   Overcast
9:53 PM 19.0 °F - 17.1 °F 92% 29.91 in 5.0 mi Calm Calm - 0.00 in   Overcast
10:07 PM 15.8 °F - 15.8 °F 100% 29.72 in 4.0 mi Calm Calm - N/A   Scattered Clouds
10:11 PM 15.8 °F 10.2 °F 12.2 °F 86% 29.72 in 1.8 mi ESE 3.5 mph - N/A   Scattered Clouds
10:20 PM 15.8 °F - 12.2 °F 86% 29.73 in 3.0 mi Calm Calm - N/A   Partly Cloudy
10:48 PM 12.2 °F - 10.4 °F 92% 29.73 in 2.0 mi Calm Calm - N/A   Partly Cloudy
10:50 PM 12.2 °F 6.1 °F 10.4 °F 92% 29.73 in 0.8 mi SE 3.5 mph - N/A   Mist
10:53 PM 12.0 °F 4.1 °F 10.0 °F 92% 29.91 in 0.2 mi SSE 4.6 mph - N/A Fog Light Freezing Fog
11:06 PM 10.4 °F -1.5 °F 8.6 °F 92% 29.73 in 2.5 mi South 8.1 mph - N/A   Mostly Cloudy
11:09 PM 10.4 °F -1.5 °F 8.6 °F 92% 29.73 in 6.0 mi South 8.1 mph - N/A   Scattered Clouds
11:53 PM 12.0 °F - 9.0 °F 88% 29.92 in 6.0 mi Calm Calm - N/A   Clear