691  
CDUS45 KRIW 180728  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT FRI JUL 18 2025  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 17 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 4:58 PM 103 2003 92 3 96  
2022  
MINIMUM 54 5:13 AM 53 1999 59 -5 62  
AVERAGE 75 76 -1 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.10 2008 0.00 0.00 0.00  
MONTH TO DATE 0.19 0.11 0.08 0.98  
SINCE JUN 1 0.65 1.19 -0.54 1.38  
SINCE JAN 1 3.36 3.54 -0.18 4.61  
 
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 10 11 -1 14  
MONTH TO DATE 161 154 7 151  
SINCE JUN 1 293 276 17 325  
SINCE JAN 1 314 300 14 325    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 5.6  
 
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 80 4:00 AM  
LOWEST 11 4:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 104 2006  
2021  
MINIMUM TEMPERATURE (F) 59 49 2005  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 5:45 AM MDT SUNSET 8:52 PM MDT  
JULY 19 2025..........SUNRISE 5:46 AM MDT SUNSET 8:51 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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