Weather History for Bozeman, MT

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 15 °F 21 °F  
Max Temperature 20 °F 34 °F 49 °F (1953)
Min Temperature 9 °F 9 °F -41 °F (1968)
Degree Days  
Heating Degree Days 50    
Month to date heating degree days 1331  
Since 1 July heating degree days 3227  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 284  
Moisture  
Dew Point 8 °F    
Average Humidity 73    
Maximum Humidity 83    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.02 in 0.65 in (1940)
Month to date precipitation 0.70 0.52  
Year to date precipitation 9.35 13.99  
Snow  
Snow 0.00 in 0.10 in 2.00 in (1969)
Month to date snowfall 4.1 6.0  
Since 1 July snowfall 14.6 13.4  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 2 mph (SSW)    
Max Wind Speed 8 mph    
Max Gust Speed 9 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 31, 2012 Rise Set
Actual Time 8:05 AM MST 4:50 PM MST
Civil Twilight 7:31 AM MST 5:24 PM MST
Nautical Twilight 6:53 AM MST 6:02 PM MST
Astronomical Twilight 6:17 AM MST 6:38 PM MST
Moon 8:36 PM MST (12/31) 9:38 AM MST (12/31)
Length of Visible Light 9h 53m
Length of Day
8h 44m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 9.0 °F 2.4 °F 3.9 °F 80% 30.27 in 10.0 mi East 3.5 mph - N/A   Overcast
1:56 AM 10.9 °F - 6.1 °F 81% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
2:56 AM 12.0 °F - 7.0 °F 80% 30.29 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 12.0 °F 1.5 °F 6.1 °F 77% 30.30 in 10.0 mi SSW 6.9 mph - N/A   Overcast
4:56 AM 10.9 °F 2.9 °F 6.1 °F 81% 30.30 in 10.0 mi ENE 4.6 mph - N/A   Overcast
5:56 AM 10.9 °F 4.7 °F 6.1 °F 81% 30.33 in 10.0 mi SSE 3.5 mph - N/A   Overcast
6:56 AM 8.6 °F - 5.0 °F 85% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
7:56 AM 12.0 °F 5.9 °F 7.0 °F 80% 30.33 in 10.0 mi SSW 3.5 mph - N/A   Overcast
8:56 AM 12.9 °F - 7.0 °F 77% 30.35 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM 12.0 °F 4.1 °F 7.0 °F 80% 30.38 in 8.0 mi West 4.6 mph - N/A   Overcast
10:56 AM 15.1 °F - 8.1 °F 74% 30.36 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 17.1 °F 11.7 °F 8.1 °F 68% 30.31 in 10.0 mi North 3.5 mph - N/A   Clear
12:56 PM 15.1 °F 9.4 °F 8.1 °F 74% 30.31 in 10.0 mi NNW 3.5 mph - N/A   Clear
1:56 PM 15.1 °F 6.4 °F 8.1 °F 74% 30.31 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
2:56 PM 19.0 °F 13.9 °F 9.0 °F 65% 30.28 in 10.0 mi West 3.5 mph - N/A   Overcast
3:56 PM 19.0 °F - 9.0 °F 65% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
4:56 PM 19.0 °F - 10.0 °F 68% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
5:56 PM 18.0 °F - 10.9 °F 74% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
6:56 PM 19.0 °F - 10.0 °F 68% 30.32 in 10.0 mi Calm Calm - N/A   Overcast
7:56 PM 19.0 °F - 12.0 °F 74% 30.32 in 10.0 mi Calm Calm - N/A   Overcast
8:56 PM 18.0 °F - 12.0 °F 78% 30.32 in 10.0 mi Calm Calm - N/A   Overcast
9:56 PM 19.0 °F - 10.9 °F 71% 30.34 in 10.0 mi Calm Calm - N/A   Overcast
10:56 PM 18.0 °F 12.7 °F 12.0 °F 78% 30.36 in 10.0 mi SSE 3.5 mph - N/A   Overcast
11:56 PM 19.0 °F 12.3 °F 12.9 °F 77% 30.36 in 10.0 mi SSE 4.6 mph - N/A   Overcast