Weather History for Yellowstone, WY

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 11 °F 13 °F  
Max Temperature 30 °F 24 °F 37 °F (2005)
Min Temperature -9 °F 1 °F -26 °F (2008)
Degree Days  
Heating Degree Days 54 52  
Month to date heating degree days 1280 1092  
Since 1 July heating degree days 5948 6002  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 0 °F    
Average Humidity 69    
Maximum Humidity 91    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.06 in 0.45 in (2002)
Month to date precipitation 0.76 1.63  
Year to date precipitation 0.76 1.63  
Sea Level Pressure  
Sea Level Pressure 30.59 in    
Wind  
Wind Speed 1 mph (NNW)    
Max Wind Speed 6 mph    
Max Gust Speed 10 mph    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:50 AM MST 5:16 PM MST
Civil Twilight 7:18 AM MST 5:47 PM MST
Nautical Twilight 6:43 AM MST 6:23 PM MST
Astronomical Twilight 6:08 AM MST 6:58 PM MST
Moon 12:57 PM MST (1/21) 3:22 AM MST (1/21)
Length of Visible Light 10h 29m
Length of Day
9h 25m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM -2.0 °F - -6.0 °F 83% 30.61 in - Calm Calm - N/A   Unknown
1:56 AM -2.9 °F - -8.0 °F 79% 30.60 in - Calm Calm - N/A   Unknown
2:56 AM -5.1 °F -13.6 °F -9.0 °F 83% 30.60 in - NW 3.5 mph - N/A   Unknown
3:56 AM -6.0 °F - -9.9 °F 83% 30.58 in - Calm Calm - N/A   Unknown
4:56 AM -5.1 °F - -9.9 °F 80% 30.58 in - Calm Calm - N/A   Unknown
5:56 AM -7.1 °F - -11.0 °F 83% 30.63 in - Calm Calm - N/A   Unknown
6:56 AM -7.1 °F - -11.9 °F 79% 30.66 in - Calm Calm - N/A   Unknown
7:56 AM -8.0 °F - -13.0 °F 79% 30.70 in - Calm Calm - N/A   Unknown
8:56 AM -2.9 °F - -6.0 °F 87% 30.67 in - Calm Calm - N/A   Unknown
9:56 AM 9.0 °F - 7.0 °F 92% 30.62 in - Calm Calm - N/A   Unknown
10:56 AM 17.1 °F - 8.1 °F 68% 30.58 in - Calm Calm - N/A   Unknown
11:56 AM 16.0 °F - 5.0 °F 62% 30.58 in - Calm Calm - N/A   Unknown
12:56 PM 18.0 °F 11.1 °F 6.1 °F 60% 30.56 in - ESE 4.6 mph - N/A   Unknown
1:56 PM 27.0 °F 23.0 °F 12.0 °F 53% 30.49 in - East 3.5 mph - N/A   Unknown
2:56 PM 30.0 °F 26.5 °F 12.9 °F 49% 30.47 in - Variable 3.5 mph - N/A   Unknown
3:56 PM 27.0 °F - 10.9 °F 51% 30.48 in - Calm Calm - N/A   Unknown
4:56 PM 24.1 °F 19.7 °F 10.9 °F 57% 30.51 in - Variable 3.5 mph - N/A   Unknown
5:56 PM 16.0 °F - 10.0 °F 77% 30.56 in - Calm Calm - N/A   Unknown
6:56 PM 10.0 °F 3.6 °F 6.1 °F 84% 30.61 in - WNW 3.5 mph - N/A   Unknown
7:56 PM 6.1 °F - 3.0 °F 87% 30.65 in - Calm Calm - N/A   Unknown
8:56 PM 3.0 °F - -0.0 °F 87% 30.64 in - Calm Calm - N/A   Unknown
9:56 PM 1.9 °F - -2.0 °F 83% 30.56 in - Calm Calm - N/A   Unknown
10:56 PM -0.9 °F - -5.1 °F 83% 30.54 in - Calm Calm - N/A   Unknown
11:56 PM -2.9 °F -11.2 °F -7.1 °F 82% 30.56 in - WNW 3.5 mph - N/A   Unknown