Weather History for Butte, MT

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Sunday, February 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 25 °F 22 °F  
Max Temperature 31 °F 35 °F 53 °F (1930)
Min Temperature 19 °F 9 °F -45 °F (1942)
Degree Days  
Heating Degree Days 40 43  
Month to date heating degree days 714 749  
Since 1 July heating degree days 5887 6120  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 20 °F    
Average Humidity 71    
Maximum Humidity 92    
Minimum Humidity 49    
Precipitation  
Precipitation 0.01 in 0.01 in 0.32 in (1918)
Month to date precipitation 0.10 0.24  
Year to date precipitation 0.37 0.71  
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 8 mph (NW)    
Max Wind Speed 21 mph    
Max Gust Speed 26 mph    
Visibility 7 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 17, 2013 Rise Set
Actual Time 7:28 AM MST 5:59 PM MST
Civil Twilight 6:58 AM MST 6:30 PM MST
Nautical Twilight 6:23 AM MST 7:05 PM MST
Astronomical Twilight 5:48 AM MST 7:39 PM MST
Moon 10:58 AM MST (2/17) 1:23 AM MST (2/17)
Length of Visible Light 11h 32m
Length of Day
10h 30m
Waxing Crescent, 49% of the Moon is Illuminated
Feb 17
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:01 AM 28.4 °F 24.6 °F 26.6 °F 93% 29.79 in 0.8 mi Variable 3.5 mph - 0.00 in Snow Light Snow
12:17 AM 28.4 °F - 26.6 °F 93% 29.79 in 1.8 mi Calm Calm - 0.01 in Snow Light Snow
12:20 AM 28.4 °F - 26.6 °F 93% 29.79 in 3.0 mi Calm Calm - 0.01 in Snow Light Snow
12:53 AM 30.0 °F - 26.1 °F 85% 29.83 in 4.0 mi Calm Calm - 0.01 in Snow Light Snow
12:58 AM 30.2 °F 26.7 °F 24.8 °F 80% 29.80 in 1.8 mi Variable 3.5 mph - 0.00 in Snow Light Snow
1:23 AM 28.4 °F - 26.6 °F 93% 29.78 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
1:53 AM 28.9 °F 23.9 °F 25.0 °F 85% 29.79 in 10.0 mi ENE 4.6 mph - 0.00 in   Overcast
2:24 AM 28.4 °F 23.3 °F 26.6 °F 93% 29.77 in 2.5 mi WNW 4.6 mph - 0.00 in Snow Light Snow
2:32 AM 28.4 °F 24.6 °F 24.8 °F 86% 29.76 in 1.2 mi West 3.5 mph - 0.00 in Snow Light Snow
2:41 AM 28.4 °F - 26.6 °F 93% 29.75 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
2:53 AM 27.0 °F 21.6 °F 25.0 °F 92% 29.78 in 9.0 mi North 4.6 mph - 0.00 in   Mostly Cloudy
3:53 AM 28.0 °F - 23.0 °F 81% 29.78 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 27.0 °F 20.5 °F 21.0 °F 78% 29.81 in 10.0 mi NW 5.8 mph - 0.00 in   Mostly Cloudy
5:53 AM 26.1 °F 19.4 °F 16.0 °F 66% 29.83 in 10.0 mi Variable 5.8 mph - 0.00 in   Overcast
6:53 AM 26.1 °F 20.5 °F 17.1 °F 69% 29.87 in 9.0 mi WNW 4.6 mph - 0.00 in   Overcast
7:53 AM 26.1 °F 17.6 °F 15.1 °F 63% 29.89 in 9.0 mi WNW 8.1 mph - N/A   Overcast
8:53 AM 26.1 °F 21.9 °F 18.0 °F 71% 29.91 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
9:53 AM 28.0 °F 17.5 °F 17.1 °F 63% 29.91 in 10.0 mi NW 12.7 mph - N/A   Overcast
10:53 AM 28.9 °F 17.7 °F 18.0 °F 64% 29.91 in 10.0 mi NW 15.0 mph - N/A   Partly Cloudy
11:53 AM 30.0 °F 20.0 °F 14.0 °F 51% 29.93 in 10.0 mi NW 12.7 mph - N/A   Scattered Clouds
12:53 PM 30.0 °F 20.0 °F 14.0 °F 51% 29.92 in 10.0 mi NW 12.7 mph - N/A   Overcast
1:53 PM 28.0 °F 14.9 °F 18.0 °F 66% 29.94 in 1.8 mi WNW 19.6 mph 24.2 mph N/A   Haze
1:59 PM 26.6 °F 14.7 °F 19.4 °F 74% 29.85 in 0.8 mi NW 15.0 mph 24.2 mph 0.00 in Snow Light Snow
2:06 PM 28.4 °F 17.0 °F 19.4 °F 69% 29.85 in 2.0 mi NW 15.0 mph - 0.00 in Snow Light Snow
2:13 PM 28.4 °F 17.0 °F 17.6 °F 64% 29.85 in 8.0 mi NW 15.0 mph 23.0 mph 0.00 in   Overcast
2:40 PM 26.6 °F 15.2 °F 21.2 °F 80% 29.85 in 1.8 mi WNW 13.8 mph 25.3 mph 0.00 in Snow Light Snow
2:53 PM 28.0 °F 15.7 °F 19.0 °F 69% 29.95 in 9.0 mi NW 17.3 mph - 0.00 in   Mostly Cloudy
3:53 PM 28.9 °F 18.6 °F 17.1 °F 61% 29.96 in 10.0 mi NNW 12.7 mph - 0.00 in   Overcast
4:53 PM 28.9 °F 19.8 °F 18.0 °F 64% 29.99 in 8.0 mi NNW 10.4 mph - 0.00 in Snow Light Snow
5:53 PM 28.0 °F 17.5 °F 18.0 °F 66% 30.01 in 10.0 mi NW 12.7 mph 17.3 mph 0.00 in   Overcast
6:53 PM 26.1 °F 16.2 °F 18.0 °F 71% 30.03 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
7:53 PM 26.1 °F 18.4 °F 15.1 °F 63% 30.06 in 10.0 mi NW 6.9 mph - N/A   Overcast
8:53 PM 24.1 °F 19.7 °F 14.0 °F 65% 30.08 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
10:53 PM 19.0 °F - 12.0 °F 74% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 PM 19.0 °F 13.9 °F 10.9 °F 71% 30.11 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy