920  
CDUS45 KRIW 290730  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT TUE JUL 29 2025  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 28 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 94 5:20 PM 104 1999 93 1 88  
MINIMUM 66 5:25 AM 47 2015 60 6 63  
AVERAGE 80 76 4 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.05 2004 0.01 -0.01 T  
MONTH TO DATE 0.58 0.15 0.43 1.09  
SINCE JUN 1 1.04 1.23 -0.19 1.49  
SINCE JAN 1 3.75 3.58 0.17 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 15 11 4 11  
MONTH TO DATE 284 275 9 286  
SINCE JUN 1 416 397 19 460  
SINCE JAN 1 437 421 16 460    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.6  
 
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 59 4:00 AM  
LOWEST 12 6:00 PM  
AVERAGE 36  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 103 2006  
MINIMUM TEMPERATURE (F) 59 46 2015  
 
SUNRISE AND SUNSET  
JULY 29 2025..........SUNRISE 5:56 AM MDT SUNSET 8:41 PM MDT  
JULY 30 2025..........SUNRISE 5:57 AM MDT SUNSET 8:39 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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