631  
CDUS45 KRIW 130728  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT THU AUG 13 2026  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 12 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 5:31 PM 97 1996 87 -10 89  
2007  
2018  
MINIMUM 64 10:28 AM 47 2016 55 9 53  
AVERAGE 71 71 0 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.46 0.01 0.00 0.00  
MONTH TO DATE 0.01 0.17 -0.16 T  
SINCE JUN 1 0.87 1.65 -0.78 1.21  
SINCE JAN 1 2.30 6.11 -3.81 5.73  
 
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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 2  
SINCE JUN 1 72 125 -53 80  
SINCE JUL 1 2 10 -8 2  
 
COOLING  
YESTERDAY 6 6 0 6  
MONTH TO DATE 127 87 40 77  
SINCE JUN 1 567 378 189 462  
SINCE JAN 1 590 386 204 468    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 49 11:00 AM  
LOWEST 22 12:00 AM  
AVERAGE 36  
   
......................................................
 
 
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 2026........SUNRISE 6:18 AM MDT SUNSET 8:19 PM MDT  
AUGUST 14 2026........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.  
 

 
 
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