089  
CDUS45 KRIW 110728  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT FRI JUL 11 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 10 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 97 4:22 PM 102 2012 91 6 100  
MINIMUM 71 4:48 AM 48 2019 58 13 62  
AVERAGE 84 74 10 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.22 2005 0.01 -0.01 0.00  
MONTH TO DATE 0.12 0.08 0.04 0.49  
SINCE JUN 1 0.58 1.16 -0.58 0.89  
SINCE JAN 1 3.29 3.51 -0.22 4.12  
 
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 19 9 10 16  
MONTH TO DATE 108 83 25 46  
SINCE JUN 1 240 205 35 220  
SINCE JAN 1 261 229 32 220    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.5  
 
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 31 11:00 PM  
LOWEST 12 4:00 PM  
AVERAGE 22  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 103 2024  
MINIMUM TEMPERATURE (F) 58 52 2016  
 
SUNRISE AND SUNSET  
JULY 11 2025..........SUNRISE 5:39 AM MDT SUNSET 8:57 PM MDT  
JULY 12 2025..........SUNRISE 5:39 AM MDT SUNSET 8:56 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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