Weather History for Butte, MT

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Friday, May 31, 2013

  Actual Average Record
Temperature  
Mean Temperature 45 °F 52 °F  
Max Temperature 54 °F 65 °F 84 °F (1986)
Min Temperature 35 °F 38 °F 24 °F (1950)
Degree Days  
Heating Degree Days 20 13  
Month to date heating degree days 507 541  
Since 1 July heating degree days 8787 8932  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 30 °F    
Average Humidity 59    
Maximum Humidity 76    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in 0.09 in 0.90 in (1908)
Month to date precipitation 2.41 2.08  
Year to date precipitation 3.31 4.91  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Year to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 20 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 31, 2013 Rise Set
Actual Time 5:43 AM MDT 9:12 PM MDT
Civil Twilight 5:06 AM MDT 9:49 PM MDT
Nautical Twilight 4:16 AM MDT 10:39 PM MDT
Astronomical Twilight 3:13 AM MDT 11:43 PM MDT
Moon 1:33 AM MDT (5/31) 1:20 PM MDT (5/31)
Length of Visible Light 16h 43m
Length of Day
15h 29m
Waning Gibbous, 51% of the Moon is Illuminated
May 31
Waning Gibbous
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Jun 23
Full

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 41.0 °F 38.0 °F 32.0 °F 70% 30.03 in 10.0 mi NW 4.6 mph - N/A   Clear
1:53 AM 39.0 °F 34.8 °F 30.9 °F 73% 30.04 in 10.0 mi NW 5.8 mph - N/A   Clear
2:53 AM 39.9 °F 37.8 °F 32.0 °F 73% 30.05 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
3:53 AM 39.9 °F 34.5 °F 28.9 °F 65% 30.05 in 10.0 mi NW 8.1 mph - N/A   Overcast
4:53 AM 39.9 °F 33.9 °F 28.0 °F 63% 30.06 in 10.0 mi NW 9.2 mph - N/A   Overcast
5:53 AM 39.9 °F 34.5 °F 28.0 °F 63% 30.08 in 10.0 mi WNW 8.1 mph - N/A   Overcast
6:53 AM 41.0 °F 33.9 °F 28.0 °F 60% 30.10 in 10.0 mi NNW 12.7 mph - N/A   Overcast
7:53 AM 42.1 °F 35.2 °F 28.0 °F 58% 30.11 in 10.0 mi NNW 12.7 mph - N/A   Overcast
8:53 AM 43.0 °F 35.7 °F 28.0 °F 56% 30.12 in 10.0 mi NW 15.0 mph 20.7 mph N/A   Overcast
9:53 AM 44.1 °F 36.5 °F 27.0 °F 51% 30.14 in 10.0 mi NW 17.3 mph 23.0 mph N/A   Overcast
10:53 AM 45.0 °F 38.9 °F 28.0 °F 52% 30.16 in 10.0 mi WNW 12.7 mph - N/A   Overcast
11:53 AM 46.9 °F - 28.0 °F 48% 30.17 in 10.0 mi NW 13.8 mph 20.7 mph N/A   Overcast
12:53 PM 48.9 °F - 28.0 °F 44% 30.18 in 10.0 mi NW 12.7 mph 20.7 mph N/A   Overcast
1:53 PM 51.1 °F - 30.0 °F 44% 30.18 in 10.0 mi NNW 12.7 mph 20.7 mph N/A   Overcast
2:53 PM 52.0 °F - 28.9 °F 41% 30.18 in 10.0 mi NW 12.7 mph 21.9 mph N/A   Overcast
3:53 PM 53.1 °F - 30.0 °F 41% 30.19 in 10.0 mi NNW 13.8 mph 21.9 mph N/A   Overcast
4:53 PM 53.1 °F - 30.0 °F 41% 30.20 in 10.0 mi NNW 12.7 mph - N/A   Overcast
5:53 PM 53.1 °F - 30.0 °F 41% 30.21 in 10.0 mi North 13.8 mph 21.9 mph N/A   Overcast
6:53 PM 54.0 °F - 30.9 °F 41% 30.21 in 10.0 mi North 10.4 mph - N/A   Overcast
7:53 PM 51.1 °F - 30.9 °F 46% 30.24 in 10.0 mi North 11.5 mph - N/A   Partly Cloudy
8:53 PM 48.9 °F - 28.9 °F 46% 30.26 in 10.0 mi North 6.9 mph - N/A   Clear
9:53 PM 46.9 °F - 30.9 °F 54% 30.28 in 10.0 mi North 8.1 mph - N/A   Clear
10:53 PM 45.0 °F - 30.9 °F 58% 30.30 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 39.0 °F 34.8 °F 32.0 °F 76% 30.32 in 10.0 mi SSW 5.8 mph - N/A   Clear