Weather History for Butte, MT

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Saturday, May 11, 2013

  Actual Average Record
Temperature  
Mean Temperature 55 °F 46 °F  
Max Temperature 74 °F 60 °F 81 °F (1960)
Min Temperature 36 °F 33 °F 15 °F (1967)
Degree Days  
Heating Degree Days 10 19  
Month to date heating degree days 194 224  
Since 1 July heating degree days 8474 8615  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 31 °F    
Average Humidity 48    
Maximum Humidity 76    
Minimum Humidity 19    
Precipitation  
Precipitation 0.01 in 0.06 in 0.60 in (1925)
Month to date precipitation 0.05 0.56  
Year to date precipitation 0.95 3.39  
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 4 mph (NW)    
Max Wind Speed 29 mph    
Max Gust Speed 45 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 11, 2013 Rise Set
Actual Time 6:02 AM MDT 8:50 PM MDT
Civil Twilight 5:28 AM MDT 9:25 PM MDT
Nautical Twilight 4:44 AM MDT 10:09 PM MDT
Astronomical Twilight 3:52 AM MDT 11:01 PM MDT
Moon 7:11 AM MDT (5/11) 10:36 PM MDT (5/11)
Length of Visible Light 15h 57m
Length of Day
14h 48m
Waxing Crescent, 3% of the Moon is Illuminated
May 11
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

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 48.9 °F - 32.0 °F 52% 30.29 in 10.0 mi NE 4.6 mph - N/A   Clear
1:53 AM 44.1 °F - 30.9 °F 60% 30.29 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 39.9 °F 37.8 °F 30.0 °F 68% 30.29 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
3:53 AM 41.0 °F - 30.9 °F 67% 30.28 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 37.9 °F - 30.0 °F 73% 30.28 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 37.9 °F - 30.0 °F 73% 30.27 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 36.0 °F - 28.9 °F 76% 30.28 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 42.1 °F - 32.0 °F 67% 30.27 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 50.0 °F - 33.1 °F 52% 30.24 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 55.9 °F - 33.1 °F 42% 30.22 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 63.0 °F - 32.0 °F 31% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 64.9 °F - 32.0 °F 29% 30.19 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 70.0 °F - 28.9 °F 22% 30.16 in 10.0 mi NNW 16.1 mph 20.7 mph N/A   Scattered Clouds
1:53 PM 72.0 °F - 28.0 °F 20% 30.16 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
2:53 PM 73.0 °F - 28.0 °F 19% 30.15 in 10.0 mi NNW 15.0 mph 21.9 mph N/A   Mostly Cloudy
3:42 PM 68.0 °F - 35.6 °F 30% 30.27 in 9.0 mi NNW 5.8 mph 23.0 mph 0.00 in Rain Light Rain
3:53 PM 69.1 °F - 32.0 °F 25% 30.17 in 10.0 mi SW 8.1 mph - 0.00 in   Mostly Cloudy
4:53 PM 66.9 °F - 34.0 °F 30% 30.17 in 10.0 mi North 10.4 mph 26.5 mph 0.00 in Rain Light Rain
5:53 PM 71.1 °F - 32.0 °F 24% 30.15 in 10.0 mi NNW 4.6 mph - 0.01 in   Mostly Cloudy
6:53 PM 69.1 °F - 30.9 °F 24% 30.14 in 10.0 mi WNW 3.5 mph - N/A   Scattered Clouds
7:53 PM 70.0 °F - 32.0 °F 25% 30.11 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
8:53 PM 66.9 °F - 30.9 °F 26% 30.10 in 10.0 mi West 5.8 mph - N/A   Overcast
9:53 PM 63.0 °F - 32.0 °F 31% 30.12 in 10.0 mi NW 4.6 mph - N/A   Clear
10:53 PM 53.1 °F - 33.1 °F 47% 30.13 in 10.0 mi SE 3.5 mph - N/A   Clear
11:53 PM 50.0 °F - 34.0 °F 54% 30.13 in 10.0 mi South 5.8 mph - N/A   Clear