History for Greybull, WY

Monday, December 31, 2012 — View Current Conditions
Monday, December 31, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature -2 °F 16 °F  
Max Temperature 10 °F 28 °F 58 °F (2002)
Min Temperature -14 °F 5 °F -17 °F (1992)
Degree Days
Heating Degree Days 67 49  
Month to date heating degree days 1367 1467  
Since 1 July heating degree days 2979 3323  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 977 669  
Moisture
Dew Point -7 °F    
Average Humidity 80    
Maximum Humidity 91    
Minimum Humidity 69    
Precipitation
Precipitation T in 0.01 in 0.05 in (2001)
Month to date precipitation 0.13 0.28  
Year to date precipitation 2.35 7.51  
Sea Level Pressure
Sea Level Pressure 30.31 in    
Wind
Wind Speed 1 mph (SSE)    
Max Wind Speed 7 mph    
Max Gust Speed 7 mph    
Visibility 9 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
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Astronomy
May. 25, 2013 Rise Set
Actual Time 7:48 AM MST 4:42 PM MST
Civil Twilight 7:15 AM MST 5:15 PM MST
Nautical Twilight 6:38 AM MST 5:52 PM MST
Astronomical Twilight 6:03 AM MST 6:28 PM MST
Moon 8:25 PM MST (12/31) 9:23 AM MST (12/31)
Length Of Visible Light 10h 00m
Length of Day
8h 53m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
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Hourly Observations
Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM -9.0 °F - -13.0 °F 83% 30.33 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM -8.0 °F - -11.9 °F 83% 30.32 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM -9.9 °F - -15.0 °F 78% 30.32 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM -9.9 °F - -14.1 °F 82% 30.31 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM -11.0 °F - -16.1 °F 78% 30.33 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM -11.9 °F -23.8 °F -16.1 °F 82% 30.35 in 9.0 mi SSE 4.6 mph - N/A   Clear
6:49 AM -13.0 °F - -16.6 °F 84% 30.07 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM -14.1 °F - -20.0 °F 75% 30.38 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:00 AM -14.8 °F - -18.4 °F 84% 30.07 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 AM -13.0 °F -22.7 °F -18.0 °F 78% 30.39 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
8:53 AM -9.9 °F -19.2 °F -13.0 °F 86% 30.42 in 7.0 mi SSE 3.5 mph - N/A   Scattered Clouds
9:53 AM -6.0 °F - -8.0 °F 91% 30.42 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM -2.0 °F - -6.0 °F 83% 30.41 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 1.0 °F - -2.9 °F 83% 30.36 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 5.0 °F - -2.0 °F 73% 30.32 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 8.1 °F - -0.9 °F 67% 30.30 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM 8.1 °F - -0.0 °F 70% 30.30 in 10.0 mi Calm Calm - N/A   Clear
3:53 PM 7.0 °F 0.1 °F -0.9 °F 70% 30.32 in 10.0 mi WNW 3.5 mph - N/A   Clear
4:53 PM 6.1 °F - -0.9 °F 73% 30.34 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 1.9 °F - -2.0 °F 83% 30.38 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:53 PM 5.0 °F -2.1 °F -0.0 °F 80% 30.36 in 10.0 mi SW 3.5 mph - N/A   Overcast
9:53 PM 6.1 °F -0.9 °F 1.0 °F 80% 30.37 in 8.0 mi SE 3.5 mph - N/A   Overcast
10:34 PM 6.8 °F - 1.4 °F 79% 30.11 in 2.0 mi Calm Calm - 0.00 in Snow Light Snow
10:44 PM 6.8 °F - 1.4 °F 79% 30.11 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
10:53 PM 7.0 °F - 1.9 °F 80% 30.37 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
11:53 PM 7.0 °F 0.1 °F 3.0 °F 84% 30.38 in 6.0 mi ESE 3.5 mph - 0.00 in Snow Light Snow
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