Weather History for Yellowstone, WY

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Friday, July 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 64 °F 57 °F  
Max Temperature 77 °F 73 °F 84 °F (2003)
Min Temperature 52 °F 41 °F 33 °F (2010)
Degree Days  
Heating Degree Days 2 8  
Month to date heating degree days 195  
Since 1 June heating degree days 688  
Since 1 July heating degree days 195  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Since 1 June cooling degree days 0  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 56    
Maximum Humidity 93    
Minimum Humidity 25    
Precipitation  
Precipitation 0.04 in 0.05 in 0.18 in (2004)
Month to date precipitation 0.91  
Year to date precipitation 11.99  
Sea Level Pressure  
Sea Level Pressure 30.21 in    
Wind  
Wind Speed 2 mph (NNE)    
Max Wind Speed 6 mph    
Max Gust Speed -    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Jul. 20, 2012 Rise Set
Actual Time 5:56 AM MDT 8:59 PM MDT
Civil Twilight 5:21 AM MDT 9:34 PM MDT
Nautical Twilight 4:36 AM MDT 10:18 PM MDT
Astronomical Twilight 3:42 AM MDT 11:11 PM MDT
Moon 7:43 AM MDT (7/20) 9:33 PM MDT (7/20)
Length of Visible Light 16h 12m
Length of Day
15h 03m
Waxing Crescent, 3% of the Moon is Illuminated
Jul 20
Waxing Crescent
Jul 26
First Quarter
Aug 1
Full
Aug 9
Last Quarter
Aug 17
New

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 59.0 °F 43.0 °F 55% 30.47 in - Calm Calm - N/A   Unknown
1:56 AM 64.9 °F 37.0 °F 36% 30.44 in - Calm Calm - N/A   Unknown
2:56 AM 61.0 °F 44.1 °F 54% 30.44 in - East 5.8 mph - N/A   Unknown
3:56 AM 57.9 °F 45.0 °F 62% 30.12 in - NW 3.5 mph - N/A   Unknown
4:56 AM 57.9 °F 44.1 °F 60% 30.14 in - Calm Calm - N/A   Unknown
5:56 AM 53.1 °F 48.0 °F 83% 30.19 in - NNW 3.5 mph - 0.01 in   Unknown
6:56 AM 54.0 °F 51.1 °F 90% 30.18 in - Calm Calm - N/A   Unknown
7:56 AM 52.0 °F 50.0 °F 93% 30.23 in - Calm Calm - 0.03 in   Unknown
8:56 AM 55.0 °F 52.0 °F 89% 30.25 in - Calm Calm - N/A   Unknown
9:56 AM 59.0 °F 48.9 °F 69% 30.25 in - Calm Calm - N/A   Unknown
10:56 AM 62.1 °F 48.0 °F 60% 30.24 in - ESE 4.6 mph - N/A   Unknown
11:56 AM 64.0 °F 46.9 °F 54% 30.22 in - Variable 4.6 mph - N/A   Unknown
12:56 PM 68.0 °F 45.0 °F 43% 30.18 in - Variable 4.6 mph - N/A   Unknown
1:56 PM 70.0 °F 51.1 °F 51% 30.14 in - East 5.8 mph - N/A   Unknown
2:56 PM 73.9 °F 48.0 °F 40% 30.12 in - Variable 3.5 mph - N/A   Unknown
3:56 PM 75.0 °F 39.0 °F 27% 30.13 in - Variable 4.6 mph - N/A   Unknown
4:56 PM 75.0 °F 37.0 °F 25% 30.11 in - Variable 3.5 mph - N/A   Unknown
5:56 PM 73.9 °F 37.0 °F 26% 30.13 in - Variable 5.8 mph - N/A   Unknown
6:56 PM 73.9 °F 39.0 °F 28% 30.12 in - Variable 4.6 mph - N/A   Unknown
7:56 PM 72.0 °F 41.0 °F 33% 30.14 in - Calm Calm - N/A   Unknown
8:56 PM 62.1 °F 46.0 °F 56% 30.18 in - Calm Calm - N/A   Unknown
9:56 PM 55.9 °F 45.0 °F 67% 30.20 in - Calm Calm - N/A   Unknown
10:56 PM 53.1 °F 44.1 °F 71% 30.20 in - NW 3.5 mph - N/A   Unknown
11:56 PM 52.0 °F 44.1 °F 74% 30.20 in - Calm Calm - N/A   Unknown