485  
CDUS45 KRIW 310727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT THU JUL 31 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 30 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 86 2:01 PM 101 2000 93 -7 92  
MINIMUM 61 11:52 PM 45 2009 59 2 56  
AVERAGE 74 76 -2 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.28R 0.17 2019 0.01 0.27 T  
MONTH TO DATE 0.86 0.16 0.70 1.09  
SINCE JUN 1 1.32 1.24 0.08 1.49  
SINCE JAN 1 4.03 3.59 0.44 4.72  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE JUN 1 46 62 -16 33  
SINCE JUL 1 0 0 0 4  
 
COOLING  
YESTERDAY 9 11 -2 9  
MONTH TO DATE 301 297 4 304  
SINCE JUN 1 433 419 14 478  
SINCE JAN 1 454 443 11 478    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 49 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 67 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 5:00 AM  
LOWEST 30 4:00 PM  
AVERAGE 57  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 101 2000  
2012  
MINIMUM TEMPERATURE (F) 59 49 2009  
 
SUNRISE AND SUNSET  
JULY 31 2025..........SUNRISE 5:58 AM MDT SUNSET 8:38 PM MDT  
AUGUST 1 2025........SUNRISE 6:00 AM MDT SUNSET 8:37 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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