Weather History for Butte, MT

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Saturday, December 8, 2012

  Actual Average Record
Temperature  
Mean Temperature 13 °F 18 °F  
Max Temperature 24 °F 30 °F 52 °F (1990)
Min Temperature 1 °F 6 °F -39 °F (1972)
Degree Days  
Heating Degree Days 52 47  
Month to date heating degree days 281 369  
Since 1 July heating degree days 2543 2859  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 8 °F    
Average Humidity 66    
Maximum Humidity 86    
Minimum Humidity 45    
Precipitation  
Precipitation T in 0.02 in 0.20 in (1917)
Month to date precipitation 0.16 0.14  
Year to date precipitation 8.92 12.40  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 8 mph (WNW)    
Max Wind Speed 25 mph    
Max Gust Speed 36 mph    
Visibility 9 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 08, 2012 Rise Set
Actual Time 7:59 AM MST 4:44 PM MST
Civil Twilight 7:25 AM MST 5:19 PM MST
Nautical Twilight 6:47 AM MST 5:56 PM MST
Astronomical Twilight 6:11 AM MST 6:33 PM MST
Moon 2:14 AM MST (12/8) 1:29 PM MST (12/8)
Length of Visible Light 9h 54m
Length of Day
8h 45m
Waning Crescent, 27% of the Moon is Illuminated
Dec 8
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
12:18 AM 23.0 °F 14.7 °F 21.2 °F 93% 29.64 in 1.0 mi NNW 6.9 mph - 0.00 in Snow Light Snow
12:23 AM 23.0 °F 14.7 °F 19.4 °F 86% 29.64 in 4.0 mi NNW 6.9 mph - 0.00 in Snow Light Snow
12:37 AM 24.8 °F 14.6 °F 17.6 °F 74% 29.65 in 10.0 mi WNW 10.4 mph - 0.00 in   Overcast
12:53 AM 24.1 °F 13.7 °F 17.1 °F 75% 29.75 in 10.0 mi NW 10.4 mph - 0.00 in   Overcast
1:53 AM 21.9 °F 14.5 °F 14.0 °F 72% 29.77 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
2:53 AM 19.9 °F 8.6 °F 15.1 °F 81% 29.80 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
3:53 AM 19.4 °F 8.6 °F 6.8 °F 58% 29.69 in 10.0 mi West 9.2 mph 21.9 mph N/A   Mostly Cloudy
4:53 AM 19.9 °F 10.1 °F 5.0 °F 52% 29.84 in 10.0 mi West 8.1 mph - N/A   Overcast
5:53 AM 19.9 °F 9.3 °F 5.0 °F 52% 29.87 in 10.0 mi WNW 9.2 mph - N/A   Overcast
6:53 AM 19.9 °F 8.6 °F 6.1 °F 55% 29.89 in 10.0 mi WNW 10.4 mph - N/A   Overcast
7:53 AM 18.0 °F 8.7 °F 8.1 °F 65% 29.93 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
8:53 AM 19.0 °F 6.1 °F 6.1 °F 57% 29.95 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Scattered Clouds
9:53 AM 19.9 °F 6.7 °F 6.1 °F 55% 29.98 in 10.0 mi NW 13.8 mph - N/A   Overcast
10:53 AM 19.9 °F 6.2 °F 6.1 °F 55% 30.01 in 10.0 mi NW 15.0 mph - N/A   Overcast
11:53 AM 21.0 °F 8.6 °F 6.1 °F 53% 30.03 in 10.0 mi NW 12.7 mph - N/A   Mostly Cloudy
12:53 PM 21.0 °F 7.1 °F 3.9 °F 48% 30.03 in 10.0 mi NW 16.1 mph 21.9 mph N/A   Overcast
1:53 PM 21.9 °F 10.4 °F 5.0 °F 48% 30.05 in 10.0 mi NW 11.5 mph - N/A   Overcast
2:53 PM 21.0 °F 9.3 °F 7.0 °F 55% 30.08 in 10.0 mi North 11.5 mph - N/A   Mostly Cloudy
3:53 PM 19.0 °F 11.1 °F 10.0 °F 68% 30.12 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
4:53 PM 19.0 °F - 9.0 °F 65% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 16.0 °F 10.4 °F 8.1 °F 71% 30.17 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
6:53 PM 14.0 °F - 8.1 °F 77% 30.19 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 9.0 °F 2.4 °F 5.0 °F 84% 30.24 in 10.0 mi SSE 3.5 mph - N/A   Clear
8:53 PM 6.1 °F -2.8 °F 1.9 °F 83% 30.27 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
9:53 PM 3.0 °F -8.0 °F -0.9 °F 84% 30.30 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds
10:53 PM 3.9 °F -3.4 °F -0.9 °F 80% 30.31 in 10.0 mi South 3.5 mph - N/A   Clear
11:53 PM 1.0 °F -10.3 °F -2.9 °F 83% 30.34 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy