578  
CDUS45 KRIW 120728  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT SUN OCT 12 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR OCTOBER 11 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 72 3:12 PM 79 1996 60 12 74  
MINIMUM 47 6:04 AM 10 2019 34 13 47  
AVERAGE 60 47 13 61  
 
PRECIPITATION (IN)  
YESTERDAY T 1.11 0.03 -0.03 0.00  
MONTH TO DATE 0.99 0.40 0.59 0.00  
SINCE SEP 1 1.98 1.17 0.81 0.07  
SINCE JAN 1 8.23 7.53 0.70 5.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.4 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 5 18 -13 4  
MONTH TO DATE 128 173 -45 64  
SINCE SEP 1 225 378 -153 150  
SINCE JUL 1 228 414 -186 168  
 
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 37 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 11.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 7:00 AM  
LOWEST 37 3:00 PM  
AVERAGE 65  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 77 1996  
MINIMUM TEMPERATURE (F) 33 18 2008  
 
SUNRISE AND SUNSET  
OCTOBER 12 2025.......SUNRISE 7:24 AM MDT SUNSET 6:35 PM MDT  
OCTOBER 13 2025.......SUNRISE 7:25 AM MDT SUNSET 6:34 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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