556  
CDUS45 KRIW 280731  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT SAT JUN 28 2025  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JUNE 27 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 95 3:47 PM 101 2015 86 9 95  
MINIMUM 54 4:30 AM 47 1999 55 -1 60  
2011  
2022  
AVERAGE 75 71 4 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.32 2014 0.02 -0.02 0.00  
MONTH TO DATE 0.46 1.03 -0.57 0.40  
SINCE JUN 1 0.46 1.03 -0.57 0.40  
SINCE JAN 1 3.17 3.38 -0.21 3.63  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 46 61 -15 29  
SINCE JUN 1 46 61 -15 29  
SINCE JUL 1 7015 7546 -531 6914  
 
COOLING  
YESTERDAY 10 6 4 13  
MONTH TO DATE 108 102 6 155  
SINCE JUN 1 108 102 6 155  
SINCE JAN 1 129 126 3 155    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 5.2  
 
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 64 4:00 AM  
LOWEST 12 3:00 PM  
AVERAGE 38  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 102 2002  
MINIMUM TEMPERATURE (F) 55 42 1999  
 
SUNRISE AND SUNSET  
JUNE 28 2025..........SUNRISE 5:30 AM MDT SUNSET 9:01 PM MDT  
JUNE 29 2025..........SUNRISE 5:31 AM MDT SUNSET 9:01 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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