Weather History for Butte, MT

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Saturday, December 22, 2012

  Actual Average Record
Temperature  
Mean Temperature 21 °F 17 °F  
Max Temperature 36 °F 29 °F 53 °F (1933)
Min Temperature 5 °F 5 °F -44 °F (1990)
Degree Days  
Heating Degree Days 44 48  
Month to date heating degree days 947 1041  
Since 1 July heating degree days 3209 3531  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 7 °F    
Average Humidity 61    
Maximum Humidity 83    
Minimum Humidity 39    
Precipitation  
Precipitation 0.00 in 0.01 in 0.40 in (1915)
Month to date precipitation 0.24 0.36  
Year to date precipitation 9.00 12.62  
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 3 mph (SSE)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Dec. 22, 2012 Rise Set
Actual Time 8:09 AM MST 4:48 PM MST
Civil Twilight 7:34 AM MST 5:23 PM MST
Nautical Twilight 6:56 AM MST 6:01 PM MST
Astronomical Twilight 6:20 AM MST 6:37 PM MST
Moon 1:16 PM MST (12/22) 2:48 AM MST (12/22)
Length of Visible Light 9h 48m
Length of Day
8h 38m
Waxing Gibbous, 74% of the Moon is Illuminated
Dec 22
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

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 10.9 °F - 3.9 °F 73% 30.07 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 9.0 °F - 1.9 °F 73% 30.07 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 8.1 °F 1.4 °F 1.0 °F 73% 30.08 in 10.0 mi SSE 3.5 mph - N/A   Clear
3:53 AM 6.1 °F - 1.0 °F 80% 30.09 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 5.0 °F - -0.0 °F 80% 30.10 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 7.0 °F 0.1 °F 1.0 °F 77% 30.10 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
6:53 AM 7.0 °F - 1.0 °F 77% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 7.0 °F - 1.0 °F 77% 30.09 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 5.0 °F - -0.0 °F 80% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 12.9 °F 5.2 °F 5.0 °F 71% 30.08 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:53 AM 19.9 °F - 8.1 °F 60% 30.04 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 23.0 °F - 9.0 °F 55% 29.99 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 24.1 °F - 12.0 °F 60% 29.95 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 PM 28.0 °F - 14.0 °F 56% 29.92 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:53 PM 35.1 °F 28.6 °F 14.0 °F 42% 29.88 in 10.0 mi South 8.1 mph - N/A   Overcast
3:53 PM 32.0 °F 24.8 °F 12.0 °F 44% 29.86 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
4:53 PM 30.9 °F 22.2 °F 10.9 °F 43% 29.88 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds
5:53 PM 28.9 °F 23.9 °F 9.0 °F 43% 29.88 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
6:53 PM 26.1 °F - 10.0 °F 51% 29.90 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 PM 27.0 °F 19.5 °F 10.0 °F 49% 29.89 in 10.0 mi Variable 6.9 mph - N/A   Scattered Clouds
8:53 PM 32.0 °F 24.8 °F 10.9 °F 42% 29.85 in 10.0 mi SSE 8.1 mph - N/A   Partly Cloudy
9:53 PM 32.0 °F 26.4 °F 12.0 °F 44% 29.84 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
10:53 PM 32.0 °F - 12.0 °F 44% 29.83 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 PM 30.0 °F - 12.9 °F 49% 29.83 in 10.0 mi Calm Calm - N/A   Mostly Cloudy