Weather History for Greybull, WY

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 21 °F 17 °F  
Max Temperature 33 °F 28 °F 48 °F (1999)
Min Temperature 9 °F 6 °F -10 °F (2008)
Degree Days  
Heating Degree Days 44 48  
Month to date heating degree days 661 832  
Since 1 July heating degree days 2273 2689  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 977 669  
Moisture  
Dew Point 9 °F    
Average Humidity 65    
Maximum Humidity 96    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.01 in 0.11 in (1955)
Month to date precipitation 0.09 0.19  
Year to date precipitation 2.31 7.42  
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 5 mph (NW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:44 AM MST 4:34 PM MST
Civil Twilight 7:10 AM MST 5:07 PM MST
Nautical Twilight 6:33 AM MST 5:44 PM MST
Astronomical Twilight 5:58 AM MST 6:20 PM MST
Moon 11:12 AM MST (12/18) 11:17 PM MST (12/18)
Length of Visible Light 9h 56m
Length of Day
8h 49m
Waxing Crescent, 35% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 18.0 °F 11.1 °F 16.0 °F 92% 29.70 in 10.0 mi NNE 4.6 mph - N/A   Partly Cloudy
1:53 AM 18.0 °F 12.7 °F 15.1 °F 88% 29.72 in 10.0 mi North 3.5 mph - N/A   Clear
2:53 AM 15.1 °F 7.7 °F 12.9 °F 91% 29.75 in 10.0 mi SE 4.6 mph - N/A   Clear
3:53 AM 14.0 °F 6.5 °F 12.0 °F 92% 29.77 in 10.0 mi ESE 4.6 mph - N/A   Clear
4:53 AM 15.1 °F 5.2 °F 12.0 °F 88% 29.78 in 10.0 mi ESE 6.9 mph - N/A   Clear
5:53 AM 16.0 °F 5.3 °F 12.0 °F 84% 29.78 in 10.0 mi ESE 8.1 mph - N/A   Clear
6:53 AM 10.9 °F 4.7 °F 8.1 °F 88% 29.82 in 10.0 mi SE 3.5 mph - N/A   Clear
7:53 AM 10.0 °F 0.4 °F 6.1 °F 84% 29.83 in 10.0 mi ESE 5.8 mph - N/A   Clear
8:53 AM 14.0 °F 6.5 °F 10.0 °F 84% 29.86 in 10.0 mi ESE 4.6 mph - N/A   Clear
9:53 AM 19.9 °F 13.4 °F 15.1 °F 81% 29.86 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:53 AM 26.1 °F 20.5 °F 17.1 °F 69% 29.84 in 10.0 mi SE 4.6 mph - N/A   Clear
11:35 AM 32.0 °F 22.5 °F 12.2 °F 44% 29.69 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Clear
11:53 AM 32.0 °F 23.6 °F 10.0 °F 40% 29.81 in 10.0 mi West 10.4 mph - N/A   Clear
12:53 PM 32.0 °F 21.6 °F 9.0 °F 38% 29.81 in 10.0 mi West 15.0 mph - N/A   Clear
1:53 PM 32.0 °F 22.5 °F 8.1 °F 37% 29.80 in 10.0 mi West 12.7 mph 23.0 mph N/A   Clear
2:53 PM 32.0 °F 24.2 °F 6.1 °F 34% 29.81 in 10.0 mi NW 9.2 mph - N/A   Clear
3:53 PM 28.9 °F 22.8 °F 3.9 °F 35% 29.83 in 10.0 mi NW 5.8 mph - N/A   Clear
4:53 PM 23.0 °F 14.7 °F 3.9 °F 44% 29.86 in 10.0 mi WNW 6.9 mph - N/A   Clear
5:53 PM 19.0 °F - 5.0 °F 54% 29.89 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 18.0 °F - 6.1 °F 60% 29.93 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 10.9 °F 4.7 °F 3.9 °F 73% 29.97 in 10.0 mi NW 3.5 mph - N/A   Clear
8:53 PM 12.9 °F 6.9 °F 1.9 °F 62% 29.97 in 10.0 mi West 3.5 mph - N/A   Clear
9:53 PM 10.0 °F 3.6 °F 1.9 °F 70% 29.98 in 10.0 mi West 3.5 mph - N/A   Clear
10:53 PM 10.0 °F - 3.0 °F 73% 29.98 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 10.0 °F - 1.9 °F 70% 29.97 in 10.0 mi Calm Calm - N/A   Clear