Weather History for Bozeman, MT

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Monday, December 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 30 °F 20 °F  
Max Temperature 39 °F 32 °F 56 °F (1979)
Min Temperature 20 °F 8 °F -31 °F (1964)
Degree Days  
Heating Degree Days 35    
Month to date heating degree days 624  
Since 1 July heating degree days 2520  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 284  
Moisture  
Dew Point 22 °F    
Average Humidity 71    
Maximum Humidity 85    
Minimum Humidity 57    
Precipitation  
Precipitation 0.03 in 0.01 in 0.14 in (1955)
Month to date precipitation 0.70 0.31  
Year to date precipitation 9.35 13.78  
Snow  
Snow 0.00 in 0.20 in 1.90 in (1945)
Month to date snowfall 4.1 3.7  
Since 1 July snowfall 14.6 11.1  
Snow Depth 4.00 in    
Sea Level Pressure  
Sea Level Pressure 29.50 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 30 mph    
Max Gust Speed 36 mph    
Visibility 9 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 8:00 AM MST 4:41 PM MST
Civil Twilight 7:26 AM MST 5:15 PM MST
Nautical Twilight 6:48 AM MST 5:53 PM MST
Astronomical Twilight 6:12 AM MST 6:30 PM MST
Moon 10:58 AM MST (12/17) 10:21 PM MST (12/17)
Length of Visible Light 9h 49m
Length of Day
8h 40m
Waxing Crescent, 25% of the Moon is Illuminated
Dec 17
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 21.9 °F 14.5 °F 15.1 °F 75% 29.62 in 10.0 mi SE 5.8 mph - N/A   Overcast
1:56 AM 24.1 °F 16.0 °F 15.1 °F 69% 29.56 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
2:56 AM 25.0 °F 15.5 °F 16.0 °F 69% 29.52 in 10.0 mi SSE 9.2 mph - N/A   Overcast
3:56 AM 24.1 °F - 17.1 °F 75% 29.52 in 10.0 mi Calm Calm - N/A   Overcast
4:56 AM 23.0 °F 17.0 °F 18.0 °F 81% 29.49 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
5:56 AM 27.0 °F 20.5 °F 21.0 °F 78% 29.44 in 10.0 mi SSW 5.8 mph - N/A   Overcast
6:56 AM 25.0 °F - 19.0 °F 78% 29.47 in 10.0 mi Calm Calm - N/A   Overcast
7:56 AM 25.0 °F 14.8 °F 19.0 °F 78% 29.49 in 10.0 mi NE 10.4 mph - N/A   Overcast
8:23 AM 30.2 °F 21.9 °F 21.2 °F 69% 29.36 in 9.0 mi NNW 9.2 mph - 0.00 in Snow Light Snow
8:56 AM 30.9 °F 23.5 °F 24.1 °F 76% 29.50 in 10.0 mi ESE 8.1 mph - 0.00 in   Overcast
9:39 AM 37.4 °F 27.8 °F 26.6 °F 65% 29.35 in 10.0 mi SW 17.3 mph 27.6 mph N/A   Overcast
9:56 AM 37.0 °F 27.7 °F 27.0 °F 67% 29.47 in 10.0 mi SW 16.1 mph - N/A   Overcast
10:56 AM 37.9 °F 31.5 °F 26.1 °F 62% 29.46 in 10.0 mi West 9.2 mph 20.7 mph 0.00 in   Overcast
11:56 AM 37.9 °F 30.5 °F 26.1 °F 62% 29.45 in 10.0 mi SW 11.5 mph 17.3 mph 0.00 in   Overcast
12:17 PM 33.8 °F 20.1 °F 28.4 °F 81% 29.40 in 2.0 mi WNW 29.9 mph 35.7 mph 0.01 in Snow Light Snow
12:19 PM 33.8 °F 20.5 °F 28.4 °F 81% 29.41 in 1.2 mi WNW 27.6 mph 35.7 mph 0.01 in Snow Light Snow
12:23 PM 32.0 °F 18.1 °F 28.4 °F 87% 29.40 in 0.8 mi WNW 27.6 mph 35.7 mph 0.02 in Snow Light Snow
12:44 PM 32.0 °F 24.2 °F 28.4 °F 87% 29.40 in 1.5 mi SW 9.2 mph - 0.03 in Snow Light Snow
12:47 PM 32.0 °F 23.6 °F 28.4 °F 87% 29.40 in 5.0 mi SW 10.4 mph - 0.03 in Snow Light Snow
12:56 PM 33.1 °F 24.9 °F 28.9 °F 85% 29.49 in 9.0 mi SSW 10.4 mph - 0.03 in   Overcast
1:56 PM 32.0 °F 27.5 °F 28.0 °F 85% 29.49 in 10.0 mi East 4.6 mph - N/A   Overcast
2:56 PM 33.1 °F 28.7 °F 26.1 °F 75% 29.50 in 10.0 mi NNE 4.6 mph - 0.00 in   Mostly Cloudy
5:56 PM 33.1 °F 23.9 °F 21.0 °F 61% 29.55 in 10.0 mi WSW 12.7 mph - N/A   Overcast
6:56 PM 32.0 °F 23.6 °F 21.0 °F 64% 29.58 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
7:56 PM 30.9 °F 21.7 °F 18.0 °F 59% 29.62 in 10.0 mi West 11.5 mph - N/A   Overcast
8:56 PM 28.9 °F 25.2 °F 18.0 °F 64% 29.65 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
9:56 PM 28.9 °F 23.9 °F 18.0 °F 64% 29.64 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy
10:56 PM 26.1 °F - 14.0 °F 60% 29.67 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:56 PM 27.0 °F 15.2 °F 10.9 °F 51% 29.67 in 10.0 mi SW 15.0 mph - N/A   Clear