819  
CDUS45 KRIW 110728  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT SAT OCT 11 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR OCTOBER 10 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 71 4:38 PM 80 2015 61 10 70  
MINIMUM 44 3:36 AM 0 2009 34 10 47  
AVERAGE 58 48 10 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.18 0.04 -0.04 0.00  
MONTH TO DATE 0.99 0.37 0.62 0.00  
SINCE SEP 1 1.98 1.14 0.84 0.07  
SINCE JAN 1 8.23 7.50 0.73 5.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.1 2008 0.0  
MONTH TO DATE T 0.0  
SINCE SEP 1 T 0.0  
SINCE JUL 1 T 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 18 -11 6  
MONTH TO DATE 123 155 -32 60  
SINCE SEP 1 220 360 -140 146  
SINCE JUL 1 223 396 -173 164  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE SEP 1 37 31 6 68  
SINCE JAN 1 611 499 112 610    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 6.2  
 
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 82 5:00 AM  
LOWEST 36 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 79 1996  
MINIMUM TEMPERATURE (F) 34 10 2019  
 
SUNRISE AND SUNSET  
OCTOBER 11 2025.......SUNRISE 7:23 AM MDT SUNSET 6:37 PM MDT  
OCTOBER 12 2025.......SUNRISE 7:24 AM MDT SUNSET 6:35 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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