411  
CDUS45 KRIW 010731  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1231 AM MST MON DEC 01 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR NOVEMBER 30 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 23 3:04 PM 62 1999 35 -12 42  
MINIMUM 9 10:36 PM -9 2022 13 -4 18  
AVERAGE 16 24 -8 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.31 0.01 -0.01 0.00  
MONTH TO DATE 0.29 0.34 -0.05 0.15  
SINCE SEP 1 2.71 1.94 0.77 0.79  
SINCE JAN 1 8.96 8.30 0.66 6.22  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.2 2019 0.0  
MONTH TO DATE 2.0 0.7  
SINCE SEP 1 2.0 3.8  
SINCE JUL 1 2.0 3.8  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 49 41 8 35  
MONTH TO DATE 785 1027 -242 979  
SINCE SEP 1 1440 1860 -420 1499  
SINCE JUL 1 1443 1896 -453 1517  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 37 31 6 68  
SINCE JAN 1 611 499 112 610    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 2:00 AM  
LOWEST 52 2:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 61 1995  
2021  
MINIMUM TEMPERATURE (F) 12 -11 2019  
 
SUNRISE AND SUNSET  
DECEMBER 1 2025......SUNRISE 7:26 AM MST SUNSET 4:40 PM MST  
DECEMBER 2 2025......SUNRISE 7:27 AM MST SUNSET 4:40 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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