, MT

(GMT )
West Yellowstone

Weather History for KWYS - September, 2013

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Tuesday, September 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F -  
Max Temperature 57 °F 63 °F 75 °F (2014)
Min Temperature 41 °F 30 °F 26 °F (2012)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 46 °F    
Average Humidity 85    
Maximum Humidity 88    
Minimum Humidity 81    
Precipitation  
Precipitation 0.53 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 3 mph (ESE)    
Max Wind Speed 13 mph    
Max Gust Speed 23 mph    
Visibility 9 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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Date:

Astronomy

Sep. 17, 2013 Rise Set
Actual Time 7:06 AM MDT 7:30 PM MDT
Civil Twilight 6:36 AM MDT 8:00 PM MDT
Nautical Twilight 6:02 AM MDT 8:34 PM MDT
Astronomical Twilight 5:26 AM MDT 9:09 PM MDT
Moon 6:21 PM MDT (9/17) 5:01 AM MDT (9/17)
Length of Visible Light 13h 23m
Length of Day
12h 24m
Waxing Gibbous, 96% of the Moon is Illuminated
Sep 17
Waxing Gibbous
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 53.6 °F - 48.2 °F 82% 30.06 in 10.0 mi Calm Calm - N/A Rain Light Rain
12:30 AM 51.8 °F - 48.2 °F 88% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
12:50 AM 50.0 °F - 46.4 °F 87% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:10 AM 53.6 °F - 48.2 °F 82% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:30 AM 50.0 °F - 46.4 °F 87% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:50 AM 50.0 °F - 44.6 °F 82% 30.05 in 10.0 mi Calm Calm - N/A   Clear
2:10 AM 48.2 °F - 44.6 °F 87% 30.04 in 10.0 mi Calm Calm - N/A   Clear
2:30 AM 53.6 °F - 48.2 °F 82% 30.04 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
2:50 AM 50.0 °F - 46.4 °F 87% 30.04 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
3:10 AM 48.2 °F - 44.6 °F 87% 30.04 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
3:30 AM 50.0 °F - 46.4 °F 87% 30.03 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
3:50 AM 53.6 °F - 48.2 °F 82% 30.04 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
4:10 AM 55.4 °F - 50.0 °F 82% 30.03 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
4:30 AM 55.4 °F - 51.8 °F 88% 30.01 in 10.0 mi SE 8.1 mph - N/A   Partly Cloudy
4:50 AM 53.6 °F - 48.2 °F 82% 30.02 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
5:10 AM 50.0 °F - 46.4 °F 87% 30.01 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
5:30 AM 50.0 °F - 46.4 °F 87% 30.02 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:50 AM 50.0 °F - 46.4 °F 87% 30.02 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
6:10 AM 50.0 °F - 44.6 °F 82% 30.01 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
6:30 AM 48.2 °F - 44.6 °F 87% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:50 AM 48.2 °F - 44.6 °F 87% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:10 AM 48.2 °F - 42.8 °F 82% 29.99 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
7:30 AM 48.2 °F - 44.6 °F 87% 30.03 in 5.0 mi WSW 3.5 mph - 0.06 in Rain Heavy Rain
7:50 AM 53.6 °F - 48.2 °F 82% 30.01 in 10.0 mi South 8.1 mph 23.0 mph 0.08 in   Overcast
8:10 AM 50.0 °F - 46.4 °F 87% 30.01 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
8:30 AM 51.8 °F - 46.4 °F 82% 30.00 in 10.0 mi NNE 5.8 mph - N/A   Scattered Clouds
8:50 AM 51.8 °F - 48.2 °F 88% 30.00 in 7.0 mi Calm Calm - 0.02 in Rain Light Rain
9:10 AM 50.0 °F - 44.6 °F 82% 30.02 in 9.0 mi WSW 6.9 mph - N/A Rain Light Rain
9:30 AM 48.2 °F - 44.6 °F 87% 30.03 in 7.0 mi NNW 4.6 mph - 0.04 in Rain Light Rain
9:50 AM 48.2 °F - 44.6 °F 87% 30.02 in 9.0 mi ESE 5.8 mph - 0.04 in Rain Light Rain
10:10 AM 50.0 °F - 44.6 °F 82% 30.02 in 10.0 mi Calm Calm - 0.01 in Rain Light Rain
10:30 AM 48.2 °F - 44.6 °F 87% 30.01 in 4.0 mi SE 3.5 mph - 0.02 in Rain Light Rain
10:50 AM 50.0 °F - 46.4 °F 87% 30.01 in 10.0 mi South 6.9 mph - 0.03 in Rain Light Rain
11:10 AM 50.0 °F - 44.6 °F 82% 30.00 in 10.0 mi NNE 8.1 mph - N/A   Overcast
11:30 AM 50.0 °F - 44.6 °F 82% 30.00 in 10.0 mi East 5.8 mph - N/A   Overcast
11:50 AM 51.8 °F - 46.4 °F 82% 29.99 in 10.0 mi NE 3.5 mph - N/A   Mostly Cloudy
12:10 PM 53.6 °F - 48.2 °F 82% 29.97 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
12:30 PM 51.8 °F - 48.2 °F 88% 29.98 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
12:50 PM 53.6 °F - 48.2 °F 82% 29.96 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
1:10 PM 53.6 °F - 50.0 °F 88% 29.94 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
1:30 PM 53.6 °F - 50.0 °F 88% 29.94 in 10.0 mi NE 3.5 mph - N/A   Mostly Cloudy
1:50 PM 57.2 °F - 51.8 °F 82% 29.91 in 10.0 mi NNE 6.9 mph - N/A   Scattered Clouds
2:10 PM 57.2 °F - 53.6 °F 88% 29.89 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
2:30 PM 57.2 °F - 53.6 °F 88% 29.88 in 10.0 mi WNW 3.5 mph - N/A   Scattered Clouds
2:50 PM 57.2 °F - 53.6 °F 88% 29.86 in 10.0 mi North 4.6 mph - N/A   Partly Cloudy
3:10 PM 55.4 °F - 50.0 °F 82% 29.86 in 10.0 mi NNW 4.6 mph - N/A Rain Light Rain
3:30 PM 53.6 °F - 48.2 °F 82% 29.84 in 10.0 mi WNW 4.6 mph - 0.03 in Rain Light Rain
3:50 PM 53.6 °F - 48.2 °F 82% 29.83 in 8.0 mi West 3.5 mph - 0.04 in Rain Light Rain
4:10 PM 53.6 °F - 48.2 °F 82% 29.89 in 10.0 mi SW 11.5 mph 16.1 mph 0.01 in Rain Light Rain
4:30 PM 50.0 °F - 44.6 °F 82% 29.86 in 9.0 mi SSE 11.5 mph - 0.18 in Rain Light Rain
4:50 PM 48.2 °F - 44.6 °F 87% 29.85 in 10.0 mi ESE 11.5 mph - 0.19 in Rain Light Rain
5:10 PM 46.4 °F 41.5 °F 41.0 °F 81% 29.83 in 7.0 mi SE 10.4 mph - 0.01 in Rain Light Rain
5:30 PM 46.4 °F 42.9 °F 41.0 °F 81% 29.84 in 7.0 mi ESE 6.9 mph - 0.04 in Rain Light Rain
5:50 PM 48.2 °F - 42.8 °F 82% 29.83 in 10.0 mi ESE 5.8 mph - 0.04 in   Overcast
6:10 PM 48.2 °F - 44.6 °F 87% 29.83 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
6:30 PM 48.2 °F - 44.6 °F 87% 29.89 in 3.0 mi SW 11.5 mph - 0.05 in Rain Light Rain
6:50 PM 48.2 °F - 44.6 °F 87% 29.89 in 5.0 mi SSW 12.7 mph 21.9 mph 0.08 in Rain Light Rain
7:10 PM 50.0 °F - 44.6 °F 82% 29.89 in 7.0 mi SSW 8.1 mph - 0.01 in Rain Light Rain
7:30 PM 48.2 °F - 44.6 °F 87% 29.85 in 10.0 mi ESE 5.8 mph - 0.01 in   Scattered Clouds
7:50 PM 48.2 °F - 42.8 °F 82% 29.85 in 10.0 mi NE 8.1 mph - 0.01 in   Mostly Cloudy
8:10 PM 48.2 °F - 42.8 °F 82% 29.86 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:30 PM 46.4 °F - 42.8 °F 87% 29.86 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:50 PM 46.4 °F 43.5 °F 42.8 °F 87% 29.85 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
9:10 PM 46.4 °F 44.3 °F 42.8 °F 87% 29.86 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
9:30 PM 46.4 °F 45.2 °F 41.0 °F 81% 29.86 in 10.0 mi SSW 3.5 mph - N/A   Clear
9:50 PM 44.6 °F - 41.0 °F 87% 29.87 in 10.0 mi Calm Calm - N/A   Clear
10:10 PM 44.6 °F - 39.2 °F 81% 29.88 in 10.0 mi Calm Calm - N/A   Clear
10:30 PM 42.8 °F 41.1 °F 39.2 °F 87% 29.87 in 10.0 mi NW 3.5 mph - N/A   Clear
10:50 PM 42.8 °F - 37.4 °F 81% 29.87 in 10.0 mi Calm Calm - N/A   Clear
11:10 PM 41.0 °F - 37.4 °F 87% 29.87 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:30 PM 41.0 °F - 37.4 °F 87% 29.86 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:50 PM 41.0 °F - 37.4 °F 87% 29.84 in 8.0 mi Calm Calm - N/A   Mostly Cloudy