578  
CDUS45 KRIW 090730  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT SAT AUG 09 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 8 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 84 2:29 PM 94 2005 88 -4 76  
MINIMUM 57 11:01 PM 47 1996 56 1 56  
2009  
AVERAGE 71 72 -1 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.16 0.01 -0.01 0.00  
MONTH TO DATE T 0.12 -0.12 T  
SINCE JUN 1 1.21 1.60 -0.39 0.47  
SINCE JAN 1 5.73 6.06 -0.33 5.11  
 
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 0 0 0 0  
SINCE JUN 1 78 125 -47 40  
SINCE JUL 1 0 10 -10 7  
 
COOLING  
YESTERDAY 6 7 -1 1  
MONTH TO DATE 65 61 4 83  
SINCE JUN 1 450 352 98 438  
SINCE JAN 1 456 360 96 438    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.2  
 
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 54 8:00 AM  
LOWEST 7 2:00 PM  
AVERAGE 31  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 94 2007  
MINIMUM TEMPERATURE (F) 56 49 2009  
2017  
 
SUNRISE AND SUNSET  
AUGUST 9 2025........SUNRISE 6:14 AM MDT SUNSET 8:24 PM MDT  
AUGUST 10 2025........SUNRISE 6:15 AM MDT SUNSET 8:23 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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