447  
CDUS45 KRIW 180045  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT SAT OCT 17 2026  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR OCTOBER 17 2026
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 66 4:22 PM 74 2003 57 9 60  
2023  
MINIMUM 31 6:02 AM 16 1999 31 0 36  
AVERAGE 49 44 5 48  
 
PRECIPITATION (IN)  
TODAY 0.00 0.24 2016 0.02 -0.02 0.00  
MONTH TO DATE 0.43 0.58 -0.15 1.43  
SINCE SEP 1 1.98 1.35 0.63 2.42  
SINCE JAN 1 4.95 7.71 -2.76 8.67  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE 0.0 T  
SINCE SEP 1 0.0 T  
SINCE JUL 1 0.0 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 16 21 -5 17  
MONTH TO DATE 164 291 -127 244  
SINCE SEP 1 249 496 -247 341  
SINCE JUL 1 251 532 -281 344  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 4 0 4 0  
SINCE SEP 1 48 31 17 37  
SINCE JAN 1 761 499 262 611    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92  
LOWEST 34  
AVERAGE 63  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 77 2003  
MINIMUM TEMPERATURE (F) 31 22 1996  
2012  
 
SUNRISE AND SUNSET  
OCTOBER 17 2026.......SUNRISE 7:30 AM MDT SUNSET 6:28 PM MDT  
OCTOBER 18 2026.......SUNRISE 7:31 AM MDT SUNSET 6:26 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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