731  
CDUS45 KRIW 130726  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT SUN JUL 13 2025  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 12 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 91 5:31 PM 107 2002 91 0 101  
MINIMUM 51 5:14 AM 44 2008 58 -7 67  
AVERAGE 71 75 -4 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2011 0.01 -0.01 0.49  
2011  
2016  
MONTH TO DATE 0.12 0.09 0.03 0.98  
SINCE JUN 1 0.58 1.17 -0.59 1.38  
SINCE JAN 1 3.29 3.52 -0.23 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 6 10 -4 19  
MONTH TO DATE 120 103 17 81  
SINCE JUN 1 252 225 27 255  
SINCE JAN 1 273 249 24 255    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 4.4  
 
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 66 4:00 AM  
LOWEST 15 6:00 PM  
AVERAGE 41  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 105 2005  
MINIMUM TEMPERATURE (F) 58 47 2008  
 
SUNRISE AND SUNSET  
JULY 13 2025..........SUNRISE 5:40 AM MDT SUNSET 8:55 PM MDT  
JULY 14 2025..........SUNRISE 5:41 AM MDT SUNSET 8:55 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