741  
CDUS45 KRIW 260731  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT TUE AUG 26 2025  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 25 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 3:37 PM 99 2008 86 3 84  
MINIMUM 51 6:04 AM 45 2005 53 -2 58  
AVERAGE 70 70 0 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.08 2024 0.01 -0.01 0.08  
MONTH TO DATE 0.12 0.16 -0.04 0.15  
SINCE JUN 1 1.44 1.40 0.04 1.64  
SINCE JAN 1 4.15 3.75 0.40 4.87  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 4 -4 0  
SINCE JUN 1 46 70 -24 33  
SINCE JUL 1 0 8 -8 4  
 
COOLING  
YESTERDAY 5 6 -1 6  
MONTH TO DATE 241 212 29 245  
SINCE JUN 1 681 643 38 732  
SINCE JAN 1 702 667 35 732    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 2.8  
 
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 64 4:00 AM  
LOWEST 13 5:00 PM  
AVERAGE 39  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 100 2007  
MINIMUM TEMPERATURE (F) 53 41 2004  
2005  
 
SUNRISE AND SUNSET  
AUGUST 26 2025........SUNRISE 6:28 AM MDT SUNSET 7:59 PM MDT  
AUGUST 27 2025........SUNRISE 6:30 AM MDT SUNSET 7:57 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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