Weather History for Butte, MT

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Thursday, December 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 13 °F 17 °F  
Max Temperature 25 °F 29 °F 60 °F (1924)
Min Temperature 0 °F 5 °F -25 °F (1919)
Degree Days  
Heating Degree Days 52 48  
Month to date heating degree days 507 609  
Since 1 July heating degree days 2769 3099  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 121 81  
Moisture  
Dew Point 5 °F    
Average Humidity 84    
Maximum Humidity 95    
Minimum Humidity 73    
Precipitation  
Precipitation 0.00 in 0.02 in 0.30 in (1901)
Month to date precipitation 0.24 0.22  
Year to date precipitation 9.00 12.48  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 3 mph (SE)    
Max Wind Speed 9 mph    
Max Gust Speed 9 mph    
Visibility 9 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 13, 2012 Rise Set
Actual Time 8:03 AM MST 4:45 PM MST
Civil Twilight 7:29 AM MST 5:19 PM MST
Nautical Twilight 6:51 AM MST 5:57 PM MST
Astronomical Twilight 6:15 AM MST 6:33 PM MST
Moon 8:14 AM MST (12/13) 5:33 PM MST (12/13)
Length of Visible Light 9h 50m
Length of Day
8h 41m
New Moon, 0% of the Moon is Illuminated
Dec 13
New Moon
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 12.0 °F 0.5 °F 9.0 °F 88% 29.97 in 10.0 mi ESE 8.1 mph - N/A   Partly Cloudy
1:53 AM 12.0 °F - 10.0 °F 92% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
2:53 AM 10.9 °F - 8.1 °F 88% 30.01 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:53 AM 5.0 °F -2.1 °F 1.9 °F 87% 30.04 in 10.0 mi SE 3.5 mph - N/A   Clear
4:53 AM 5.0 °F -5.6 °F 1.9 °F 87% 30.05 in 10.0 mi SSE 5.8 mph - N/A   Clear
5:53 AM 5.0 °F - 1.0 °F 84% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 5.0 °F -2.1 °F 1.9 °F 87% 30.08 in 10.0 mi SSE 3.5 mph - N/A   Clear
7:44 AM 1.4 °F - -2.2 °F 85% 29.87 in 1.8 mi Calm Calm - N/A   Clear
7:53 AM 3.0 °F - -0.0 °F 87% 30.10 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
8:17 AM 1.4 °F -8.3 °F -0.4 °F 92% 29.88 in 2.0 mi SSE 4.6 mph - N/A   Clear
8:24 AM 1.4 °F -6.2 °F -0.4 °F 92% 29.88 in 10.0 mi South 3.5 mph - N/A   Clear
8:53 AM 1.0 °F -8.7 °F -2.9 °F 83% 30.13 in 5.0 mi SE 4.6 mph - N/A   Clear
9:53 AM 9.0 °F - 7.0 °F 92% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 14.0 °F - 10.9 °F 88% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 19.0 °F - 12.9 °F 77% 30.04 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 19.0 °F - 14.0 °F 81% 30.04 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 21.9 °F 17.2 °F 15.1 °F 75% 30.01 in 10.0 mi SE 3.5 mph - N/A   Clear
2:53 PM 23.0 °F - 16.0 °F 74% 29.99 in 10.0 mi Calm Calm - N/A   Clear
4:53 PM 15.8 °F 7.2 °F 10.4 °F 79% 29.79 in 10.0 mi SE 5.8 mph - N/A   Clear
5:53 PM 8.6 °F 2.0 °F 3.2 °F 79% 29.79 in 10.0 mi SE 3.5 mph - N/A   Clear
6:53 PM 8.1 °F -0.5 °F 3.9 °F 83% 30.06 in 10.0 mi SE 4.6 mph - N/A   Clear
7:53 PM 6.1 °F - 3.0 °F 87% 30.08 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 5.0 °F -4.1 °F 1.9 °F 87% 30.09 in 10.0 mi SE 4.6 mph - N/A   Clear
9:53 PM 1.9 °F - -0.9 °F 88% 30.06 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 3.2 °F -4.2 °F -0.4 °F 85% 29.78 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
11:53 PM 3.9 °F -5.3 °F -0.0 °F 84% 30.00 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy