063  
CDUS45 KRIW 020729  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT SAT AUG 02 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 1 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 92 1:42 PM 104 2008 92 0 96  
MINIMUM 59 5:54 AM 48 2009 59 0 55  
AVERAGE 76 76 0 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.06R 0.02 2011 0.00 0.06 0.00  
MONTH TO DATE 0.06 0.00 0.06 0.00  
SINCE JUN 1 1.38 1.24 0.14 1.49  
SINCE JAN 1 4.09 3.59 0.50 4.72  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 46 66 -20 33  
SINCE JUL 1 0 4 -4 4  
 
COOLING  
YESTERDAY 11 11 0 11  
MONTH TO DATE 11 11 0 11  
SINCE JUN 1 451 442 9 498  
SINCE JAN 1 472 466 6 498    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 43 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 63 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 6:00 AM  
LOWEST 16 2:00 PM  
AVERAGE 46  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 103 2024  
MINIMUM TEMPERATURE (F) 59 50 2006  
 
SUNRISE AND SUNSET  
AUGUST 2 2025........SUNRISE 6:01 AM MDT SUNSET 8:36 PM MDT  
AUGUST 3 2025........SUNRISE 6:02 AM MDT SUNSET 8:34 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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