Weather History for Yellowstone, WY

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Friday, September 27, 2013

  Actual Average Record
Temperature  
Mean Temperature 31 °F 42 °F  
Max Temperature 35 °F 57 °F 73 °F (2001)
Min Temperature 27 °F 28 °F 24 °F (2000)
Degree Days  
Heating Degree Days 34 22  
Month to date heating degree days 445 477  
Since 1 July heating degree days 869 1064  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 25 °F    
Average Humidity 79    
Maximum Humidity 92    
Minimum Humidity 66    
Precipitation  
Precipitation 0.07 in 0.03 in 0.27 in (2004)
Month to date precipitation 3.13 1.20  
Year to date precipitation 15.30 15.27  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 3 mph (WNW)    
Max Wind Speed 10 mph    
Max Gust Speed 20 mph    
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. 27, 2013 Rise Set
Actual Time 7:15 AM MDT 7:09 PM MDT
Civil Twilight 6:46 AM MDT 7:38 PM MDT
Nautical Twilight 6:12 AM MDT 8:11 PM MDT
Astronomical Twilight 5:37 AM MDT 8:46 PM MDT
Moon 12:00 AM MDT (9/27) 3:02 PM MDT (9/27)
Length of Visible Light 12h 52m
Length of Day
11h 54m
Last Quarter, 44% of the Moon is Illuminated
Sep 27
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 30.0 °F 25.2 °F 26.1 °F 85% 29.88 in - Variable 4.6 mph - 0.02 in   Unknown
1:56 AM 28.9 °F - 26.1 °F 89% 29.90 in - Calm Calm - 0.01 in   Unknown
2:56 AM 28.9 °F 25.2 °F 26.1 °F 89% 29.88 in - Variable 3.5 mph - 0.01 in   Unknown
3:56 AM 28.0 °F - 26.1 °F 92% 29.90 in - Calm Calm - 0.03 in   Unknown
4:56 AM 28.9 °F - 25.0 °F 85% 29.91 in - Calm Calm - N/A   Unknown
5:56 AM 28.0 °F - 25.0 °F 88% 29.94 in - Calm Calm - N/A   Unknown
6:56 AM 28.0 °F - 25.0 °F 88% 29.94 in - Calm Calm - N/A   Unknown
7:56 AM 27.0 °F - 24.1 °F 89% 29.97 in - Calm Calm - N/A   Unknown
8:56 AM 28.0 °F 21.7 °F 24.1 °F 85% 29.98 in - Variable 5.8 mph - N/A   Unknown
9:56 AM 28.9 °F 25.2 °F 25.0 °F 85% 29.97 in - Variable 3.5 mph - N/A   Unknown
10:56 AM 33.1 °F - 25.0 °F 72% 29.96 in - Calm Calm - N/A   Unknown
11:56 AM 33.1 °F 30.0 °F 26.1 °F 75% 29.96 in - Variable 3.5 mph - N/A   Unknown
12:56 PM 35.1 °F 28.6 °F 26.1 °F 70% 29.96 in - WNW 8.1 mph - N/A   Unknown
1:56 PM 32.0 °F 28.7 °F 26.1 °F 79% 29.99 in - West 3.5 mph - N/A   Unknown
2:56 PM 32.0 °F 27.5 °F 26.1 °F 79% 30.01 in - Variable 4.6 mph - N/A   Unknown
3:56 PM 33.1 °F 28.7 °F 26.1 °F 75% 30.03 in - Variable 4.6 mph - N/A   Unknown
4:56 PM 34.0 °F 28.8 °F 25.0 °F 70% 30.03 in - West 5.8 mph - N/A   Unknown
5:56 PM 33.1 °F - 25.0 °F 72% 30.06 in - Calm Calm - N/A   Unknown
6:56 PM 32.0 °F 28.7 °F 23.0 °F 69% 30.08 in - WNW 3.5 mph - N/A   Unknown
7:56 PM 28.9 °F - 26.1 °F 89% 30.12 in - Calm Calm - N/A   Unknown
8:56 PM 28.0 °F - 26.1 °F 92% 30.14 in - Calm Calm - N/A   Unknown
9:56 PM 30.0 °F 26.5 °F 26.1 °F 85% 30.12 in - Variable 3.5 mph - 0.01 in   Unknown
10:56 PM 30.9 °F 25.2 °F 26.1 °F 82% 30.09 in - Variable 5.8 mph - 0.01 in   Unknown
11:56 PM 30.9 °F 27.5 °F 26.1 °F 82% 30.10 in - Variable 3.5 mph - N/A   Unknown