790  
CDUS45 KRIW 230045  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT FRI AUG 22 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 22 2025
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 84 2:40 PM 96 2009 84 0 88  
MINIMUM 57 5:33 AM 47 2021 52 5 50  
AVERAGE 71 68 3 69  
 
PRECIPITATION (IN)  
TODAY 0.00 0.19 2007 0.01 -0.01 0.00  
MONTH TO DATE 0.01 0.30 -0.29 0.22  
SINCE JUN 1 1.22 1.78 -0.56 0.69  
SINCE JAN 1 5.74 6.24 -0.50 5.33  
 
SNOWFALL (IN)  
TODAY MM 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  
TODAY 0 1 -1 0  
MONTH TO DATE 2 9 -7 1  
SINCE JUN 1 80 134 -54 41  
SINCE JUL 1 2 19 -17 8  
 
COOLING  
TODAY 6 4 2 4  
MONTH TO DATE 178 139 39 161  
SINCE JUN 1 563 430 133 516  
SINCE JAN 1 569 438 131 516    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 11.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 62  
LOWEST 31  
AVERAGE 47  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 95 2011  
MINIMUM TEMPERATURE (F) 52 39 2015  
 
SUNRISE AND SUNSET  
AUGUST 22 2025........SUNRISE 6:28 AM MDT SUNSET 8:05 PM MDT  
AUGUST 23 2025........SUNRISE 6:29 AM MDT SUNSET 8:03 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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