Weather History for West Yellowstone, MT

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Sunday, December 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 3 °F -  
Max Temperature 19 °F 18 °F 35 °F (2011)
Min Temperature -13 °F -4 °F -13 °F (2012)
Degree Days  
Heating Degree Days 62    
Moisture  
Dew Point -    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 1 mph (SW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 9 miles    
Events Snow    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 30, 2012 Rise Set
Actual Time 8:01 AM MST 4:53 PM MST
Civil Twilight 7:28 AM MST 5:26 PM MST
Nautical Twilight 6:51 AM MST 6:03 PM MST
Astronomical Twilight 6:15 AM MST 6:39 PM MST
Moon 7:34 PM MST (12/30) 9:06 AM MST (12/30)
Length of Visible Light 9h 58m
Length of Day
8h 51m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
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
12:05 AM -0.4 °F -8.3 °F - N/A% 29.90 in 10.0 mi WNW 3.5 mph - N/A   Overcast
12:25 AM -0.4 °F - - N/A% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
12:45 AM -0.4 °F - - N/A% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
1:05 AM -0.4 °F - - N/A% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
1:25 AM -0.4 °F - - N/A% 29.91 in 8.0 mi Calm Calm - N/A Snow Light Snow
1:45 AM -0.4 °F - - N/A% 29.91 in 5.0 mi Calm Calm - N/A Snow Light Snow
2:05 AM 1.4 °F - - N/A% 29.92 in 5.0 mi Calm Calm - N/A Snow Light Snow
2:25 AM 1.4 °F - - N/A% 29.92 in 9.0 mi Calm Calm - N/A Snow Light Snow
2:45 AM 1.4 °F - - N/A% 29.92 in 8.0 mi Calm Calm - N/A Snow Light Snow
3:05 AM 1.4 °F - - N/A% 29.93 in 5.0 mi Calm Calm - N/A Snow Light Snow
3:25 AM 3.2 °F - - N/A% 29.93 in 8.0 mi Calm Calm - N/A Snow Light Snow
3:45 AM 3.2 °F - - N/A% 29.93 in 5.0 mi Calm Calm - N/A Snow Light Snow
4:05 AM 5.0 °F - - N/A% 29.93 in 8.0 mi Calm Calm - N/A Snow Light Snow
4:25 AM 3.2 °F - - N/A% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
4:45 AM 3.2 °F - - N/A% 29.93 in 8.0 mi Calm Calm - N/A Snow Light Snow
5:05 AM 3.2 °F - - N/A% 29.93 in 7.0 mi Calm Calm - N/A Snow Light Snow
5:25 AM 1.4 °F - - N/A% 29.93 in 4.0 mi Calm Calm - N/A Snow Light Snow
5:45 AM 1.4 °F - - N/A% 29.93 in 3.0 mi Calm Calm - N/A Snow Light Snow
6:05 AM -0.4 °F - - N/A% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
6:25 AM -2.2 °F - - N/A% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
6:45 AM -0.4 °F - - N/A% 29.95 in 9.0 mi Calm Calm - N/A Snow Light Snow
7:05 AM -0.4 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A Snow Light Snow
7:25 AM 1.4 °F - - N/A% 29.95 in 5.0 mi Calm Calm - N/A Snow Light Snow
7:45 AM 3.2 °F - - N/A% 29.95 in 2.5 mi Calm Calm - N/A Snow Light Snow
8:05 AM 5.0 °F - - N/A% 29.96 in 2.5 mi Calm Calm - N/A Snow Light Snow
8:25 AM 5.0 °F -2.1 °F - N/A% 29.96 in 5.0 mi North 3.5 mph - N/A Snow Light Snow
8:45 AM 3.2 °F -4.2 °F - N/A% 29.96 in 9.0 mi NE 3.5 mph - N/A   Overcast
9:05 AM 5.0 °F - - N/A% 29.96 in 9.0 mi Calm Calm - N/A   Overcast
9:25 AM 5.0 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
9:45 AM 6.8 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
10:05 AM 6.8 °F - - N/A% 29.98 in 10.0 mi Calm Calm - N/A   Overcast
10:25 AM 8.6 °F - - N/A% 29.98 in 10.0 mi Calm Calm - N/A Snow Light Snow
10:45 AM 8.6 °F - - N/A% 29.98 in 10.0 mi Calm Calm - N/A Snow Light Snow
11:05 AM 8.6 °F 2.0 °F - N/A% 29.98 in 10.0 mi ENE 3.5 mph - N/A   Overcast
11:25 AM 10.4 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
11:45 AM 10.4 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
12:05 PM 12.2 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
12:25 PM 14.0 °F - - N/A% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
12:45 PM 14.0 °F - - N/A% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
1:05 PM 14.0 °F - - N/A% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
1:25 PM 15.8 °F - - N/A% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
1:45 PM 15.8 °F - - N/A% 29.93 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:05 PM 15.8 °F - - N/A% 29.94 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:25 PM 17.6 °F - - N/A% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
2:45 PM 17.6 °F - - N/A% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
3:05 PM 19.4 °F 10.4 °F - N/A% 29.94 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
3:25 PM 19.4 °F 12.8 °F - N/A% 29.95 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
3:45 PM 19.4 °F 11.5 °F - N/A% 29.95 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
4:05 PM 17.6 °F 9.3 °F - N/A% 29.95 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
4:25 PM 15.8 °F 10.2 °F - N/A% 29.95 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
4:45 PM 14.0 °F 8.2 °F - N/A% 29.95 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
5:05 PM 10.4 °F - - N/A% 29.95 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:25 PM 6.8 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:45 PM 5.0 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:05 PM 1.4 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Clear
6:25 PM -0.4 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Clear
6:45 PM -0.4 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Clear
7:05 PM -2.2 °F - - N/A% 29.96 in 10.0 mi Calm Calm - N/A   Clear
7:25 PM -4.0 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:45 PM -5.8 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
8:05 PM -7.6 °F -16.5 °F - N/A% 29.97 in 10.0 mi SSW 3.5 mph - N/A   Clear
8:25 PM -7.6 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
8:45 PM -7.6 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
9:05 PM -9.4 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
9:25 PM -11.2 °F -20.6 °F - N/A% 29.96 in 10.0 mi SSW 3.5 mph - N/A   Clear
9:45 PM -11.2 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Clear
10:05 PM -11.2 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:25 PM -13.0 °F - - N/A% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:45 PM -13.0 °F -22.7 °F - N/A% 29.97 in 10.0 mi South 3.5 mph - N/A Snow Light Snow
11:05 PM -9.4 °F - - N/A% 29.98 in 6.0 mi Calm Calm - N/A Snow Light Snow
11:25 PM -9.4 °F - - N/A% 29.98 in 9.0 mi Calm Calm - N/A Snow Light Snow
11:45 PM -7.6 °F -16.5 °F - N/A% 29.98 in 9.0 mi SSW 3.5 mph - N/A Snow Light Snow