706  
CDUS45 KRIW 200726  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT WED AUG 20 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 19 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 97R 3:13 PM 96 2013 85 12 91  
2019  
MINIMUM 56 2:27 AM 43 1996 53 3 64  
2002  
AVERAGE 77 69 8 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.29 0.01 -0.01 T  
MONTH TO DATE 0.01 0.26 -0.25 0.22  
SINCE JUN 1 1.22 1.74 -0.52 0.69  
SINCE JAN 1 5.74 6.20 -0.46 5.33  
 
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 1 -1 0  
MONTH TO DATE 2 6 -4 1  
SINCE JUN 1 80 131 -51 41  
SINCE JUL 1 2 16 -14 8  
 
COOLING  
YESTERDAY 12 5 7 13  
MONTH TO DATE 147 126 21 134  
SINCE JUN 1 532 417 115 489  
SINCE JAN 1 538 425 113 489    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 6.4  
 
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 47 4:00 AM  
LOWEST 7 5:00 PM  
AVERAGE 27  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 94 2019  
MINIMUM TEMPERATURE (F) 53 39 2016  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 6:26 AM MDT SUNSET 8:08 PM MDT  
AUGUST 21 2025........SUNRISE 6:27 AM MDT SUNSET 8:06 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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