Weather History for Butte, MT

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Wednesday, May 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 47 °F 51 °F  
Max Temperature 56 °F 65 °F 87 °F (1986)
Min Temperature 37 °F 38 °F 24 °F (1920)
Degree Days  
Heating Degree Days 18 14  
Month to date heating degree days 584 528  
Since 1 July heating degree days 8295 8919  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 31 °F    
Average Humidity 57    
Maximum Humidity 79    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in 0.09 in 1.12 in (1988)
Month to date precipitation 1.20 1.99  
Year to date precipitation 3.90 4.82  
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 5 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 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

May. 30, 2012 Rise Set
Actual Time 5:43 AM MDT 9:11 PM MDT
Civil Twilight 5:06 AM MDT 9:49 PM MDT
Nautical Twilight 4:17 AM MDT 10:38 PM MDT
Astronomical Twilight 3:14 AM MDT 11:42 PM MDT
Moon 3:40 PM MDT (5/30) 2:27 AM MDT (5/30)
Length of Visible Light 16h 42m
Length of Day
15h 28m
Waxing Gibbous, 71% of the Moon is Illuminated
May 30
Waxing Gibbous
Jun 4
Full
Jun 11
Last Quarter
Jun 19
New
Jun 26
First Quarter

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 - 34.0 °F 56% 30.00 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
1:53 AM 48.0 °F - 35.1 °F 61% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:53 AM 48.0 °F - 32.0 °F 54% 29.97 in 10.0 mi WNW 3.5 mph - N/A   Overcast
3:53 AM 46.0 °F 44.8 °F 30.9 °F 56% 29.99 in 10.0 mi NW 3.5 mph - N/A   Overcast
4:53 AM 45.0 °F 41.8 °F 28.9 °F 53% 30.00 in 10.0 mi NW 5.8 mph - N/A   Overcast
5:53 AM 43.0 °F 41.3 °F 30.9 °F 62% 30.05 in 10.0 mi NNE 3.5 mph - N/A   Overcast
6:53 AM 44.1 °F 42.5 °F 30.9 °F 60% 30.06 in 10.0 mi WNW 3.5 mph - N/A   Overcast
7:53 AM 45.0 °F 43.5 °F 30.0 °F 56% 30.09 in 10.0 mi NW 3.5 mph - N/A   Overcast
8:53 AM 46.9 °F - 30.0 °F 52% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 50.0 °F - 26.1 °F 39% 30.08 in 10.0 mi NW 12.7 mph - N/A   Overcast
10:53 AM 51.1 °F - 26.1 °F 38% 30.09 in 10.0 mi NNW 13.8 mph - N/A   Overcast
11:53 AM 53.1 °F - 27.0 °F 37% 30.08 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
12:53 PM 53.1 °F - 28.9 °F 40% 30.08 in 10.0 mi WNW 9.2 mph - N/A   Overcast
1:53 PM 55.0 °F - 28.9 °F 37% 30.08 in 10.0 mi North 4.6 mph - N/A   Overcast
2:53 PM 55.0 °F - 28.9 °F 37% 30.07 in 10.0 mi NNW 4.6 mph - N/A   Overcast
3:53 PM 55.9 °F - 30.0 °F 37% 30.08 in 10.0 mi NW 6.9 mph - N/A   Overcast
4:53 PM 55.0 °F - 30.9 °F 40% 30.09 in 10.0 mi NW 9.2 mph - N/A   Overcast
5:53 PM 55.0 °F - 33.1 °F 43% 30.11 in 10.0 mi NW 8.1 mph - N/A   Overcast
6:53 PM 54.0 °F - 33.1 °F 45% 30.12 in 10.0 mi West 6.9 mph - N/A   Overcast
7:53 PM 53.1 °F - 33.1 °F 47% 30.13 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
8:53 PM 50.0 °F - 33.1 °F 52% 30.14 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
9:53 PM 46.9 °F - 34.0 °F 61% 30.16 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 44.1 °F - 34.0 °F 68% 30.17 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 39.0 °F 34.0 °F 34.0 °F 82% 30.20 in 10.0 mi SE 6.9 mph - N/A   Clear