, MT

(GMT )
West Yellowstone

Weather History for KWYS - September, 2012

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Saturday, September 22, 2012

  Actual Average Record
Temperature  
Mean Temperature 50 °F -  
Max Temperature 75 °F 61 °F 75 °F (2012)
Min Temperature 26 °F 26 °F 24 °F (2011)
Degree Days  
Heating Degree Days 14    
Moisture  
Dew Point -    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 2 mph (SW)    
Max Wind Speed 14 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
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. 22, 2012 Rise Set
Actual Time 7:12 AM MDT 7:20 PM MDT
Civil Twilight 6:43 AM MDT 7:49 PM MDT
Nautical Twilight 6:08 AM MDT 8:24 PM MDT
Astronomical Twilight 5:33 AM MDT 8:59 PM MDT
Moon 2:47 PM MDT (9/22) No Moon Set
Length of Visible Light 13h 06m
Length of Day
12h 08m
Waxing Crescent, 49% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

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 37.4 °F - - N/A% 30.29 in 10.0 mi Calm Calm - N/A   Clear
12:30 AM 37.4 °F - - N/A% 30.29 in 10.0 mi Calm Calm - N/A   Clear
12:50 AM 35.6 °F 32.8 °F - N/A% 30.30 in 10.0 mi SSW 3.5 mph - N/A   Clear
1:10 AM 35.6 °F - - N/A% 30.30 in 10.0 mi Calm Calm - N/A   Clear
1:30 AM 33.8 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:50 AM 32.0 °F 28.7 °F - N/A% 30.31 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
2:10 AM 32.0 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:30 AM 32.0 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:50 AM 32.0 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:10 AM 30.2 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:30 AM 28.4 °F - - N/A% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:50 AM 28.4 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:10 AM 28.4 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:30 AM 28.4 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:50 AM 26.6 °F 22.6 °F - N/A% 30.31 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
5:10 AM 26.6 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:30 AM 26.6 °F - - N/A% 30.31 in 10.0 mi Calm Calm - N/A   Clear
5:50 AM 26.6 °F 22.6 °F - N/A% 30.31 in 10.0 mi SSW 3.5 mph - N/A   Clear
6:10 AM 26.6 °F - - N/A% 30.32 in 10.0 mi Calm Calm - N/A   Clear
6:30 AM 26.6 °F - - N/A% 30.32 in 10.0 mi Calm Calm - N/A   Clear
6:50 AM 26.6 °F - - N/A% 30.32 in 10.0 mi Calm Calm - N/A   Clear
7:10 AM 26.6 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
7:30 AM 26.6 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
7:50 AM 26.6 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
8:10 AM 28.4 °F - - N/A% 30.34 in 10.0 mi Calm Calm - N/A   Clear
8:50 AM 35.6 °F - - N/A% 30.33 in 10.0 mi Calm Calm - N/A   Clear
9:10 AM 37.4 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
9:30 AM 39.2 °F - - N/A% 30.34 in 9.0 mi Calm Calm - N/A   Clear
9:50 AM 42.8 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
10:10 AM 46.4 °F - - N/A% 30.33 in 9.0 mi Calm Calm - N/A   Clear
10:30 AM 50.0 °F - - N/A% 30.33 in 8.0 mi Calm Calm - N/A   Clear
10:50 AM 51.8 °F - - N/A% 30.32 in 8.0 mi Calm Calm - N/A   Clear
11:10 AM 55.4 °F - - N/A% 30.32 in 9.0 mi Calm Calm - N/A   Clear
11:30 AM 57.2 °F - - N/A% 30.31 in 9.0 mi Calm Calm - N/A   Clear
12:10 PM 62.6 °F - - N/A% 30.30 in 9.0 mi NE 3.5 mph - N/A   Clear
12:30 PM 64.4 °F - - N/A% 30.29 in 9.0 mi Calm Calm - N/A   Clear
12:50 PM 68.0 °F - - N/A% 30.28 in 10.0 mi Calm Calm - N/A   Clear
1:10 PM 69.8 °F - - N/A% 30.27 in 10.0 mi SSE 4.6 mph - N/A   Clear
1:30 PM 71.6 °F - - N/A% 30.26 in 10.0 mi Calm Calm - N/A   Clear
1:50 PM 73.4 °F - - N/A% 30.25 in 10.0 mi SSW 5.8 mph - N/A   Clear
2:10 PM 73.4 °F - - N/A% 30.24 in 10.0 mi SSW 12.7 mph 16.1 mph N/A   Clear
2:30 PM 75.2 °F - - N/A% 30.23 in 10.0 mi SSW 13.8 mph 18.4 mph N/A   Clear
2:50 PM 73.4 °F - - N/A% 30.23 in 10.0 mi West 8.1 mph 23.0 mph N/A   Clear
3:10 PM 75.2 °F - - N/A% 30.23 in 10.0 mi SW 10.4 mph 17.3 mph N/A   Clear
3:30 PM 73.4 °F - - N/A% 30.23 in 10.0 mi WSW 5.8 mph - N/A   Clear
3:50 PM 75.2 °F - - N/A% 30.22 in 10.0 mi WSW 5.8 mph - N/A   Clear
4:10 PM 75.2 °F - - N/A% 30.22 in 10.0 mi SW 8.1 mph 16.1 mph N/A   Clear
4:30 PM 73.4 °F - - N/A% 30.21 in 10.0 mi SW 11.5 mph 20.7 mph N/A   Clear
4:50 PM 75.2 °F - - N/A% 30.21 in 10.0 mi WSW 10.4 mph 17.3 mph N/A   Clear
5:10 PM 75.2 °F - - N/A% 30.21 in 10.0 mi SW 10.4 mph 18.4 mph N/A   Clear
5:30 PM 73.4 °F - - N/A% 30.21 in 10.0 mi SW 8.1 mph 17.3 mph N/A   Clear
5:50 PM 73.4 °F - - N/A% 30.21 in 10.0 mi SW 9.2 mph - N/A   Clear
6:10 PM 73.4 °F - - N/A% 30.21 in 10.0 mi SW 10.4 mph - N/A   Clear
6:30 PM 71.6 °F - - N/A% 30.21 in 10.0 mi SW 9.2 mph - N/A   Clear
6:50 PM 69.8 °F - - N/A% 30.21 in 10.0 mi SW 6.9 mph - N/A   Clear
7:10 PM 66.2 °F - - N/A% 30.21 in 10.0 mi SW 4.6 mph - N/A   Clear
7:30 PM 60.8 °F - - N/A% 30.21 in 10.0 mi SSW 4.6 mph - N/A   Clear
7:50 PM 53.6 °F - - N/A% 30.21 in 10.0 mi SSW 3.5 mph - N/A   Clear
8:10 PM 51.8 °F - - N/A% 30.22 in 10.0 mi SSW 3.5 mph - N/A   Clear
8:30 PM 50.0 °F - - N/A% 30.22 in 10.0 mi South 4.6 mph - N/A   Clear
8:50 PM 53.6 °F - - N/A% 30.22 in 10.0 mi Calm Calm - N/A   Clear
9:10 PM 46.4 °F - - N/A% 30.22 in 10.0 mi Calm Calm - N/A   Clear
9:30 PM 46.4 °F - - N/A% 30.23 in 10.0 mi Calm Calm - N/A   Clear
9:50 PM 44.6 °F 42.2 °F - N/A% 30.23 in 10.0 mi SE 4.6 mph - N/A   Clear
10:10 PM 44.6 °F 43.1 °F - N/A% 30.23 in 10.0 mi SSW 3.5 mph - N/A   Clear
10:30 PM 41.0 °F 39.0 °F - N/A% 30.23 in 10.0 mi SW 3.5 mph - N/A   Clear
10:50 PM 41.0 °F 39.0 °F - N/A% 30.23 in 10.0 mi WSW 3.5 mph - N/A   Clear
11:10 PM 41.0 °F - - N/A% 30.23 in 10.0 mi Calm Calm - N/A   Clear
11:30 PM 39.2 °F - - N/A% 30.23 in 10.0 mi Calm Calm - N/A   Clear
11:50 PM 39.2 °F - - N/A% 30.24 in 10.0 mi Calm Calm - N/A   Clear