, MT

(GMT )
West Yellowstone

Weather History for KWYS - September, 2013

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Thursday, September 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F -  
Max Temperature 57 °F 62 °F 80 °F (2015)
Min Temperature 41 °F 31 °F 10 °F (2014)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 44 °F    
Average Humidity 84    
Maximum Humidity 88    
Minimum Humidity 81    
Precipitation  
Precipitation 0.02 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.35 in    
Wind  
Wind Speed 2 mph (North)    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Rain    
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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Daily Weather History Graph

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Astronomy

Sep. 12, 2013 Rise Set
Actual Time 7:00 AM MDT 7:40 PM MDT
Civil Twilight 6:30 AM MDT 8:09 PM MDT
Nautical Twilight 5:55 AM MDT 8:44 PM MDT
Astronomical Twilight 5:19 AM MDT 9:20 PM MDT
Moon 2:47 PM MDT (9/12) No Moon Set
Length of Visible Light 13h 38m
Length of Day
12h 40m
Waxing Crescent, 51% of the Moon is Illuminated
Sep 12
Waxing Crescent
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:10 AM 50.0 °F - 46.4 °F 87% 30.38 in 10.0 mi North 3.5 mph - N/A   Clear
12:30 AM 50.0 °F - 44.6 °F 82% 30.38 in 10.0 mi Calm Calm - N/A   Clear
12:50 AM 51.8 °F - 46.4 °F 82% 30.38 in 10.0 mi North 3.5 mph - N/A   Clear
1:10 AM 48.2 °F - 44.6 °F 87% 30.39 in 10.0 mi NNW 3.5 mph - N/A   Clear
1:30 AM 46.4 °F - 41.0 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
1:50 AM 46.4 °F - 42.8 °F 87% 30.39 in 10.0 mi Calm Calm - N/A   Clear
2:10 AM 46.4 °F - 41.0 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
2:30 AM 44.6 °F 43.1 °F 39.2 °F 81% 30.39 in 10.0 mi NNW 3.5 mph - N/A   Clear
2:50 AM 42.8 °F - 37.4 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
3:10 AM 41.0 °F 39.0 °F 37.4 °F 87% 30.39 in 10.0 mi WSW 3.5 mph - N/A   Clear
3:30 AM 42.8 °F - 37.4 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
3:50 AM 42.8 °F - 37.4 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
4:10 AM 42.8 °F - 37.4 °F 81% 30.39 in 10.0 mi Calm Calm - N/A   Clear
4:30 AM 42.8 °F - 37.4 °F 81% 30.38 in 10.0 mi Calm Calm - N/A   Clear
4:50 AM 41.0 °F 39.0 °F 37.4 °F 87% 30.39 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:10 AM 41.0 °F - 37.4 °F 87% 30.38 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:30 AM 41.0 °F - 37.4 °F 87% 30.38 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:50 AM 41.0 °F 38.0 °F 37.4 °F 87% 30.39 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
6:10 AM 41.0 °F - 37.4 °F 87% 30.38 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:30 AM 41.0 °F - 37.4 °F 87% 30.38 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:50 AM 41.0 °F 38.0 °F 37.4 °F 87% 30.38 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
7:10 AM 42.8 °F - 39.2 °F 87% 30.39 in 10.0 mi Calm Calm - N/A   Overcast
7:30 AM 44.6 °F - 41.0 °F 87% 30.39 in 10.0 mi Calm Calm - N/A   Overcast
7:50 AM 46.4 °F 45.2 °F 42.8 °F 87% 30.39 in 10.0 mi NW 3.5 mph - N/A   Overcast
8:10 AM 46.4 °F - 42.8 °F 87% 30.40 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:30 AM 48.2 °F - 44.6 °F 87% 30.40 in 10.0 mi Calm Calm - N/A Rain Light Rain
8:50 AM 48.2 °F - 42.8 °F 82% 30.40 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:10 AM 48.2 °F - 44.6 °F 87% 30.40 in 7.0 mi Calm Calm - N/A Rain Light Rain
9:30 AM 48.2 °F - 42.8 °F 82% 30.41 in 8.0 mi Calm Calm - 0.01 in Rain Light Rain
9:50 AM 48.2 °F - 44.6 °F 87% 30.41 in 8.0 mi North 3.5 mph - 0.02 in Rain Light Rain
10:10 AM 48.2 °F - 44.6 °F 87% 30.40 in 10.0 mi Calm Calm - N/A Rain Light Rain
10:30 AM 50.0 °F - 44.6 °F 82% 30.40 in 10.0 mi North 4.6 mph - N/A   Overcast
10:50 AM 50.0 °F - 46.4 °F 87% 30.40 in 10.0 mi NNE 3.5 mph - N/A Rain Light Rain
11:10 AM 50.0 °F - 46.4 °F 87% 30.40 in 3.0 mi Calm Calm - N/A Rain Light Rain
11:30 AM 50.0 °F - 46.4 °F 87% 30.39 in 4.0 mi Calm Calm - N/A Rain Light Rain
11:50 AM 50.0 °F - 46.4 °F 87% 30.39 in 10.0 mi Calm Calm - N/A Rain Light Rain
12:10 PM 51.8 °F - 46.4 °F 82% 30.39 in 10.0 mi North 3.5 mph - N/A Rain Light Rain
12:30 PM 51.8 °F - 46.4 °F 82% 30.38 in 8.0 mi North 4.6 mph - N/A Rain Light Rain
12:50 PM 53.6 °F - 48.2 °F 82% 30.38 in 10.0 mi NW 3.5 mph - N/A Rain Light Rain
1:10 PM 53.6 °F - 50.0 °F 88% 30.37 in 10.0 mi Calm Calm - N/A Rain Light Rain
1:30 PM 55.4 °F - 50.0 °F 82% 30.37 in 10.0 mi NW 3.5 mph - N/A   Partly Cloudy
1:50 PM 55.4 °F - 51.8 °F 88% 30.36 in 10.0 mi NE 6.9 mph - N/A Rain Light Rain
2:10 PM 55.4 °F - 50.0 °F 82% 30.36 in 9.0 mi ENE 4.6 mph - N/A Rain Light Rain
2:30 PM 55.4 °F - 50.0 °F 82% 30.35 in 8.0 mi ENE 5.8 mph - N/A Rain Light Rain
2:50 PM 55.4 °F - 50.0 °F 82% 30.35 in 10.0 mi ENE 5.8 mph - N/A Rain Light Rain
3:10 PM 55.4 °F - 50.0 °F 82% 30.35 in 10.0 mi NNE 6.9 mph - N/A Rain Light Rain
3:30 PM 55.4 °F - 50.0 °F 82% 30.34 in 10.0 mi ENE 5.8 mph - N/A Rain Light Rain
3:50 PM 55.4 °F - 50.0 °F 82% 30.34 in 8.0 mi NE 9.2 mph - N/A Rain Light Rain
4:10 PM 55.4 °F - 50.0 °F 82% 30.32 in 10.0 mi NE 8.1 mph - N/A Rain Light Rain
4:30 PM 55.4 °F - 50.0 °F 82% 30.32 in 10.0 mi North 4.6 mph - N/A Rain Light Rain
4:50 PM 55.4 °F - 50.0 °F 82% 30.32 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
5:10 PM 55.4 °F - 50.0 °F 82% 30.31 in 10.0 mi NNW 5.8 mph - N/A   Scattered Clouds
5:30 PM 57.2 °F - 53.6 °F 88% 30.30 in 10.0 mi NNE 5.8 mph - N/A   Clear
5:50 PM 57.2 °F - 53.6 °F 88% 30.30 in 10.0 mi NE 11.5 mph - N/A   Clear
6:10 PM 57.2 °F - 53.6 °F 88% 30.29 in 10.0 mi NNE 8.1 mph - N/A   Clear
6:30 PM 57.2 °F - 53.6 °F 88% 30.30 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
6:50 PM 57.2 °F - 53.6 °F 88% 30.29 in 10.0 mi North 3.5 mph - N/A   Overcast
7:10 PM 57.2 °F - 53.6 °F 88% 30.28 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
7:30 PM 55.4 °F - 50.0 °F 82% 30.28 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:50 PM 51.8 °F - 48.2 °F 88% 30.28 in 10.0 mi Calm Calm - N/A   Clear
8:10 PM 50.0 °F - 44.6 °F 82% 30.28 in 10.0 mi Calm Calm - N/A   Clear
8:30 PM 48.2 °F - 44.6 °F 87% 30.28 in 10.0 mi Calm Calm - N/A   Clear
8:50 PM 48.2 °F - 42.8 °F 82% 30.28 in 10.0 mi WSW 3.5 mph - N/A   Clear
9:10 PM 46.4 °F - 41.0 °F 81% 30.28 in 10.0 mi Calm Calm - N/A   Clear
9:30 PM 46.4 °F - 41.0 °F 81% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:50 PM 44.6 °F - 39.2 °F 81% 30.27 in 10.0 mi Calm Calm - N/A   Clear
10:10 PM 44.6 °F - 39.2 °F 81% 30.26 in 10.0 mi Calm Calm - N/A   Clear
10:30 PM 44.6 °F - 39.2 °F 81% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:50 PM 42.8 °F - 39.2 °F 87% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:10 PM 42.8 °F - 37.4 °F 81% 30.25 in 10.0 mi Calm Calm - N/A   Clear
11:30 PM 42.8 °F - 37.4 °F 81% 30.26 in 10.0 mi Calm Calm - N/A   Clear
11:50 PM 41.0 °F - 37.4 °F 87% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy