Weather History for Greybull, WY

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Friday, December 28, 2012

  Actual Average Record
Temperature  
Mean Temperature 6 °F 16 °F  
Max Temperature 19 °F 28 °F 55 °F (1998)
Min Temperature -7 °F 5 °F -8 °F (2009)
Degree Days  
Heating Degree Days 59 49  
Month to date heating degree days 1173 1320  
Since 1 July heating degree days 2785 3177  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 977 669  
Moisture  
Dew Point 2 °F    
Average Humidity 81    
Maximum Humidity 95    
Minimum Humidity 67    
Precipitation  
Precipitation T in 0.00 in 0.01 in (2006)
Month to date precipitation 0.13 0.26  
Year to date precipitation 2.35 7.49  
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 1 mph (ENE)    
Max Wind Speed 6 mph    
Max Gust Speed 8 mph    
Visibility 8 miles    
Events      
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

Dec. 28, 2012 Rise Set
Actual Time 7:48 AM MST 4:40 PM MST
Civil Twilight 7:15 AM MST 5:13 PM MST
Nautical Twilight 6:38 AM MST 5:50 PM MST
Astronomical Twilight 6:02 AM MST 6:25 PM MST
Moon 5:22 PM MST (12/28) 7:42 AM MST (12/28)
Length of Visible Light 9h 58m
Length of Day
8h 51m
Full, 100% of the Moon is Illuminated
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 1.9 °F - -0.9 °F 88% 30.17 in 8.0 mi Calm Calm - N/A   Clear
1:53 AM 1.9 °F - -2.0 °F 83% 30.18 in 8.0 mi Calm Calm - N/A   Clear
2:53 AM -0.0 °F -7.9 °F -4.0 °F 83% 30.19 in 9.0 mi NW 3.5 mph - N/A   Clear
4:53 AM 1.0 °F - -2.0 °F 87% 30.20 in 8.0 mi Calm Calm - N/A   Overcast
5:53 AM 3.0 °F - -0.9 °F 84% 30.21 in 8.0 mi Calm Calm - N/A   Overcast
6:53 AM 3.0 °F -4.4 °F -0.0 °F 87% 30.23 in 7.0 mi SSE 3.5 mph - N/A   Overcast
7:53 AM 3.9 °F - -0.0 °F 84% 30.24 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
8:53 AM 3.9 °F - 1.0 °F 88% 30.26 in 6.0 mi Calm Calm - N/A   Overcast
9:53 AM 7.0 °F - 5.0 °F 92% 30.28 in 6.0 mi Calm Calm - N/A   Overcast
10:53 AM 10.0 °F - 8.1 °F 92% 30.28 in 6.0 mi Calm Calm - N/A   Overcast
11:53 AM 12.9 °F - 8.1 °F 81% 30.25 in 5.0 mi Calm Calm - 0.00 in   Haze
12:53 PM 15.1 °F - 9.0 °F 77% 30.23 in 9.0 mi Calm Calm - N/A   Clear
1:53 PM 18.0 °F - 10.0 °F 71% 30.21 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM 19.0 °F - 10.9 °F 71% 30.23 in 10.0 mi Calm Calm - N/A   Clear
3:53 PM 18.0 °F - 10.0 °F 71% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:53 PM 12.9 °F - 8.1 °F 81% 30.27 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM 9.0 °F - 6.1 °F 88% 30.29 in 9.0 mi Calm Calm - N/A   Clear
6:53 PM 5.0 °F - 1.0 °F 84% 30.31 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 3.2 °F - 1.4 °F 92% 30.07 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:53 PM -0.0 °F - -2.9 °F 88% 30.33 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 PM -0.0 °F - -2.9 °F 88% 30.34 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM -2.0 °F - -4.0 °F 91% 30.35 in 8.0 mi Calm Calm - N/A   Clear
10:53 PM -2.0 °F -10.1 °F -5.1 °F 87% 30.36 in 8.0 mi SE 3.5 mph - N/A   Clear
11:53 PM -7.1 °F -18.1 °F -11.0 °F 83% 30.38 in 10.0 mi North 4.6 mph - N/A   Clear