429  
CDUS45 KRIW 010728  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT TUE JUL 01 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JUNE 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 89 5:39 PM 104 2024 87 2 104  
MINIMUM 51 5:03 AM 46 2017 56 -5 54  
AVERAGE 70 72 -2 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.28 1999 0.02 -0.02 T  
MONTH TO DATE 0.46 1.08 -0.62 0.40  
SINCE JUN 1 0.46 1.08 -0.62 0.40  
SINCE JAN 1 3.17 3.43 -0.26 3.63  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 46 63 -17 29  
SINCE JUN 1 46 63 -17 29  
SINCE JUL 1 7015 7548 -533 6914  
 
COOLING  
YESTERDAY 5 7 -2 14  
MONTH TO DATE 132 122 10 174  
SINCE JUN 1 132 122 10 174  
SINCE JAN 1 153 146 7 174    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 3.7  
 
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 65 5:00 AM  
LOWEST 10 6:00 PM  
AVERAGE 38  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 103 2012  
MINIMUM TEMPERATURE (F) 56 50 2017  
2020  
 
SUNRISE AND SUNSET  
JULY 1 2025..........SUNRISE 5:32 AM MDT SUNSET 9:01 PM MDT  
JULY 2 2025..........SUNRISE 5:32 AM MDT SUNSET 9:00 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab WY Page
Main Text Page