Weather History for Yellowstone, WY

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Sunday, August 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 63 °F 55 °F  
Max Temperature 80 °F 72 °F 80 °F (2001)
Min Temperature 45 °F 38 °F 30 °F (2006)
Degree Days  
Heating Degree Days 2 10  
Month to date heating degree days 143 156  
Since 1 June heating degree days 774 932  
Since 1 July heating degree days 341 439  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Since 1 June cooling degree days 0 0  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 34 °F    
Average Humidity 41    
Maximum Humidity 66    
Minimum Humidity 15    
Precipitation  
Precipitation 0.00 in 0.05 in 1.06 in (2005)
Month to date precipitation 0.36 0.84  
Year to date precipitation 11.71 13.39  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 17 mph    
Max Gust Speed 24 mph    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Aug. 18, 2013 Rise Set
Actual Time 6:28 AM MDT 8:21 PM MDT
Civil Twilight 5:56 AM MDT 8:52 PM MDT
Nautical Twilight 5:18 AM MDT 9:31 PM MDT
Astronomical Twilight 4:36 AM MDT 10:12 PM MDT
Moon 6:32 PM MDT (8/18) 3:38 AM MDT (8/18)
Length of Visible Light 14h 56m
Length of Day
13h 53m
Waxing Gibbous, 92% of the Moon is Illuminated
Aug 18
Waxing Gibbous
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 48.9 °F - 33.1 °F 54% 30.04 in - Calm Calm - N/A   Unknown
1:56 AM 46.0 °F - 33.1 °F 61% 30.06 in - Calm Calm - N/A   Unknown
2:56 AM 46.0 °F 44.8 °F 32.0 °F 58% 30.05 in - WNW 3.5 mph - N/A   Unknown
3:56 AM 45.0 °F - 33.1 °F 63% 30.07 in - Calm Calm - N/A   Unknown
4:56 AM 48.0 °F - 34.0 °F 58% 30.07 in - Calm Calm - N/A   Unknown
5:56 AM 46.9 °F - 35.1 °F 63% 30.08 in - NW 3.5 mph - N/A   Unknown
6:56 AM 46.0 °F - 36.0 °F 68% 30.09 in - Calm Calm - N/A   Unknown
7:56 AM 48.9 °F - 37.9 °F 66% 30.11 in - Calm Calm - N/A   Unknown
8:56 AM 62.1 °F - 44.1 °F 52% 30.11 in - Calm Calm - N/A   Unknown
9:56 AM 64.9 °F - 48.0 °F 54% 30.13 in - ENE 4.6 mph - N/A   Unknown
10:56 AM 68.0 °F - 43.0 °F 40% 30.12 in - Variable 3.5 mph - N/A   Unknown
11:56 AM 73.9 °F - 27.0 °F 18% 30.09 in - West 9.2 mph 19.6 mph N/A   Unknown
12:56 PM 77.0 °F - 27.0 °F 16% 30.09 in - West 11.5 mph 19.6 mph N/A   Unknown
1:56 PM 77.0 °F - 28.0 °F 17% 30.08 in - NW 8.1 mph - N/A   Unknown
2:56 PM 77.0 °F - 28.9 °F 17% 30.08 in - WSW 8.1 mph - N/A   Unknown
3:56 PM 78.1 °F - 28.9 °F 17% 30.06 in - Variable 3.5 mph - N/A   Unknown
4:56 PM 79.0 °F - 30.9 °F 17% 30.03 in - Variable 3.5 mph - N/A   Unknown
5:56 PM 75.9 °F - 30.0 °F 19% 30.05 in - West 8.1 mph - N/A   Unknown
6:56 PM 75.9 °F - 28.9 °F 18% 30.05 in - Variable 4.6 mph - N/A   Unknown
7:56 PM 73.0 °F - 28.9 °F 20% 30.05 in - West 3.5 mph - N/A   Unknown
8:56 PM 68.0 °F - 32.0 °F 26% 30.04 in - West 5.8 mph - N/A   Unknown
9:56 PM 61.0 °F - 34.0 °F 36% 30.06 in - NW 3.5 mph - N/A   Unknown
10:56 PM 55.0 °F - 36.0 °F 49% 30.08 in - WNW 3.5 mph - N/A   Unknown
11:56 PM 52.0 °F - 35.1 °F 53% 30.08 in - Calm Calm - N/A   Unknown