134  
CDUS45 KRIW 130733  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT WED AUG 13 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 12 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 5:51 PM 97 1996 87 2 85  
2007  
2018  
MINIMUM 53 5:31 AM 47 2016 55 -2 56  
AVERAGE 71 71 0 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.46 0.01 -0.01 T  
MONTH TO DATE T 0.17 -0.17 0.04  
SINCE JUN 1 1.21 1.65 -0.44 0.51  
SINCE JAN 1 5.73 6.11 -0.38 5.15  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0  
MONTH TO DATE 0.0 0.0  
SINCE JUN 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 1  
SINCE JUN 1 80 125 -45 41  
SINCE JUL 1 2 10 -8 8  
 
COOLING  
YESTERDAY 6 6 0 6  
MONTH TO DATE 77 87 -10 91  
SINCE JUN 1 462 378 84 446  
SINCE JAN 1 468 386 82 446    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 5:00 AM  
LOWEST 17 4:00 PM  
AVERAGE 41  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 98 2007  
MINIMUM TEMPERATURE (F) 55 43 2002  
 
SUNRISE AND SUNSET  
AUGUST 13 2025........SUNRISE 6:18 AM MDT SUNSET 8:19 PM MDT  
AUGUST 14 2025........SUNRISE 6:19 AM MDT SUNSET 8:17 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