009  
CDUS45 KRIW 270732  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
132 AM MDT WED AUG 27 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 26 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 4:59 PM 100 2007 86 3 63  
MINIMUM 54 5:13 AM 41 2004 53 1 52  
2005  
AVERAGE 72 69 3 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.44 2024 0.01 -0.01 0.44  
MONTH TO DATE 0.12 0.17 -0.05 0.59  
SINCE JUN 1 1.44 1.41 0.03 2.08  
SINCE JAN 1 4.15 3.76 0.39 5.31  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 7  
MONTH TO DATE 0 5 -5 7  
SINCE JUN 1 46 71 -25 40  
SINCE JUL 1 0 9 -9 11  
 
COOLING  
YESTERDAY 7 5 2 0  
MONTH TO DATE 248 217 31 245  
SINCE JUN 1 688 648 40 732  
SINCE JAN 1 709 672 37 732    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 2.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 55 4:00 AM  
LOWEST 14 6:00 PM  
AVERAGE 35  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 99 2011  
MINIMUM TEMPERATURE (F) 53 42 2005  
 
SUNRISE AND SUNSET  
AUGUST 27 2025........SUNRISE 6:30 AM MDT SUNSET 7:57 PM MDT  
AUGUST 28 2025........SUNRISE 6:31 AM MDT SUNSET 7:55 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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