Weather History for Greybull, WY

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Tuesday, May 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 56 °F 58 °F  
Max Temperature 72 °F 72 °F 87 °F (2002)
Min Temperature 39 °F 45 °F 31 °F (2001)
Degree Days  
Heating Degree Days 9 7  
Month to date heating degree days 164 219  
Since 1 July heating degree days 7574 7618  
Cooling Degree Days 0 1  
Month to date cooling degree days 23 6  
Year to date cooling degree days 23 7  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 29 °F    
Average Humidity 45    
Maximum Humidity 79    
Minimum Humidity 10    
Precipitation  
Precipitation 0.00 in 0.07 in 0.36 in (1968)
Month to date precipitation 0.42 0.95  
Year to date precipitation 1.31 2.47  
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 7 mph (NNW)    
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

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

May. 21, 2013 Rise Set
Actual Time 5:38 AM MDT 8:40 PM MDT
Civil Twilight 5:03 AM MDT 9:14 PM MDT
Nautical Twilight 4:19 AM MDT 9:59 PM MDT
Astronomical Twilight 3:26 AM MDT 10:52 PM MDT
Moon 4:49 PM MDT (5/21) 3:17 AM MDT (5/21)
Length of Visible Light 16h 11m
Length of Day
15h 01m
Waxing Gibbous, 84% of the Moon is Illuminated
May 21
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 51.1 °F - 33.1 °F 50% 30.04 in 10.0 mi NNW 19.6 mph - N/A   Overcast
1:53 AM 51.1 °F - 36.0 °F 56% 30.03 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
2:53 AM 46.0 °F 40.2 °F 35.1 °F 66% 30.04 in 10.0 mi WNW 12.7 mph - N/A   Clear
3:53 AM 44.1 °F 39.5 °F 35.1 °F 71% 30.04 in 10.0 mi West 8.1 mph - N/A   Clear
4:53 AM 42.1 °F - 34.0 °F 73% 30.05 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 39.9 °F - 34.0 °F 79% 30.07 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 39.9 °F 36.7 °F 34.0 °F 79% 30.09 in 10.0 mi ESE 4.6 mph - N/A   Clear
7:53 AM 46.0 °F - 36.0 °F 68% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 51.1 °F - 36.0 °F 56% 30.05 in 10.0 mi East 3.5 mph - N/A   Clear
9:53 AM 55.0 °F - 34.0 °F 45% 30.03 in 10.0 mi NNW 3.5 mph - N/A   Clear
10:53 AM 59.0 °F - 30.9 °F 35% 30.00 in 10.0 mi NNW 6.9 mph - N/A   Clear
11:53 AM 63.0 °F - 27.0 °F 26% 29.96 in 10.0 mi NNW 11.5 mph 17.3 mph N/A   Clear
12:53 PM 64.9 °F - 26.1 °F 23% 29.93 in 10.0 mi NNW 9.2 mph - N/A   Clear
1:53 PM 68.0 °F - 23.0 °F 18% 29.89 in 10.0 mi Variable 5.8 mph 18.4 mph N/A   Clear
2:53 PM 68.0 °F - 19.9 °F 16% 29.89 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Clear
3:53 PM 69.1 °F - 18.0 °F 14% 29.86 in 10.0 mi NW 4.6 mph - N/A   Clear
4:53 PM 71.1 °F - 12.9 °F 11% 29.83 in 10.0 mi NW 11.5 mph 20.7 mph N/A   Clear
5:53 PM 71.1 °F - 19.0 °F 14% 29.82 in 10.0 mi North 4.6 mph - N/A   Clear
6:53 PM 70.0 °F - 21.9 °F 16% 29.81 in 10.0 mi NNW 10.4 mph - N/A   Clear
7:53 PM 66.9 °F - 28.0 °F 23% 29.80 in 10.0 mi NNW 15.0 mph - N/A   Clear
8:53 PM 61.0 °F - 28.0 °F 29% 29.81 in 10.0 mi NNW 11.5 mph - N/A   Clear
9:53 PM 57.9 °F - 30.0 °F 35% 29.81 in 10.0 mi NW 6.9 mph - N/A   Clear
10:53 PM 57.0 °F - 30.0 °F 36% 29.82 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 53.1 °F - 34.0 °F 48% 29.83 in 10.0 mi WNW 5.8 mph - N/A   Clear