Weather History for Butte, MT

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Sunday, September 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F 52 °F  
Max Temperature 73 °F 69 °F 93 °F (2000)
Min Temperature 54 °F 36 °F 22 °F (1970)
Degree Days  
Heating Degree Days 1 13  
Month to date heating degree days 34 153  
Since 1 July heating degree days 101 381  
Cooling Degree Days 0 0  
Month to date cooling degree days 8 0  
Year to date cooling degree days 104 79  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 58    
Maximum Humidity 77    
Minimum Humidity 38    
Precipitation  
Precipitation T in 0.03 in 0.48 in (1977)
Month to date precipitation 0.47 0.54  
Year to date precipitation 7.76 10.42  
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 9 mph (SSE)    
Max Wind Speed 21 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 15, 2013 Rise Set
Actual Time 7:08 AM MDT 7:40 PM MDT
Civil Twilight 6:38 AM MDT 8:10 PM MDT
Nautical Twilight 6:02 AM MDT 8:46 PM MDT
Astronomical Twilight 5:26 AM MDT 9:22 PM MDT
Moon 5:19 PM MDT (9/15) 2:39 AM MDT (9/15)
Length of Visible Light 13h 32m
Length of Day
12h 32m
Waxing Gibbous, 82% of the Moon is Illuminated
Sep 15
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 59.0 °F 48.0 °F 67% 30.03 in 10.0 mi SE 6.9 mph - N/A   Clear
1:53 AM 57.9 °F 48.9 °F 72% 30.03 in 10.0 mi SE 10.4 mph - N/A   Partly Cloudy
2:53 AM 57.9 °F 48.0 °F 70% 30.03 in 10.0 mi South 9.2 mph - N/A   Overcast
3:53 AM 55.9 °F 48.0 °F 75% 30.04 in 10.0 mi SSE 13.8 mph 17.3 mph N/A   Overcast
4:53 AM 55.9 °F 48.0 °F 75% 30.03 in 10.0 mi SSE 12.7 mph - N/A   Overcast
5:53 AM 55.0 °F 48.0 °F 77% 30.03 in 10.0 mi South 17.3 mph - N/A   Overcast
6:53 AM 54.0 °F 46.9 °F 77% 30.03 in 10.0 mi SSE 11.5 mph 21.9 mph N/A   Partly Cloudy
7:53 AM 54.0 °F 46.9 °F 77% 30.05 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
8:53 AM 55.9 °F 46.9 °F 72% 30.05 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 61.0 °F 46.9 °F 60% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:53 AM 64.9 °F 46.9 °F 52% 30.02 in 10.0 mi South 10.4 mph 17.3 mph N/A   Clear
11:53 AM 66.9 °F 46.9 °F 49% 30.00 in 10.0 mi SSE 8.1 mph - N/A   Clear
12:53 PM 68.0 °F 46.9 °F 47% 29.99 in 10.0 mi ESE 8.1 mph 19.6 mph N/A   Clear
1:53 PM 70.0 °F 46.9 °F 44% 29.97 in 10.0 mi SE 12.7 mph 21.9 mph N/A   Clear
2:53 PM 72.0 °F 48.0 °F 43% 29.94 in 10.0 mi ESE 13.8 mph - N/A   Partly Cloudy
3:53 PM 72.0 °F 48.0 °F 43% 29.93 in 10.0 mi ESE 10.4 mph - N/A   Partly Cloudy
4:53 PM 72.0 °F 48.0 °F 43% 29.91 in 10.0 mi SE 9.2 mph 18.4 mph N/A   Partly Cloudy
5:53 PM 73.0 °F 46.9 °F 39% 29.89 in 10.0 mi ESE 13.8 mph - N/A   Scattered Clouds
6:53 PM 70.0 °F 46.9 °F 44% 29.90 in 10.0 mi ESE 10.4 mph - N/A   Partly Cloudy
7:53 PM 68.0 °F 46.9 °F 47% 29.90 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
8:40 PM 68.0 °F 48.2 °F 49% 30.04 in 10.0 mi SE 6.9 mph - N/A Thunderstorm Mostly Cloudy
8:53 PM 66.0 °F 48.9 °F 54% 29.92 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
9:53 PM 63.0 °F 50.0 °F 63% 29.91 in 10.0 mi SSW 3.5 mph - 0.00 in   Overcast
10:53 PM 62.1 °F 50.0 °F 65% 29.89 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
11:53 PM 57.9 °F 48.9 °F 72% 29.88 in 10.0 mi Calm Calm - N/A   Overcast