557  
CDUS45 KRIW 220728  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT WED OCT 22 2025  
   
...............................  
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR OCTOBER 21 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 59 3:55 PM 78 2003 55 4 69  
MINIMUM 32 7:14 AM 15 1996 29 3 35  
AVERAGE 46 42 4 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.16 0.02 -0.02 0.00  
MONTH TO DATE 1.43 0.67 0.76 0.11  
SINCE SEP 1 2.42 1.44 0.98 0.18  
SINCE JAN 1 8.67 7.80 0.87 5.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.2 2006 0.0  
MONTH TO DATE T T  
SINCE SEP 1 T T  
SINCE JUL 1 T T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 23 -4 13  
MONTH TO DATE 320 379 -59 212  
SINCE SEP 1 417 584 -167 298  
SINCE JUL 1 420 620 -200 316  
 
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 26 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 9.2  
 
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 53 7:00 AM  
LOWEST 26 4:00 PM  
AVERAGE 40  
   
......................................................  
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 73 2003  
MINIMUM TEMPERATURE (F) 29 18 2006  
2020  
 
SUNRISE AND SUNSET  
OCTOBER 22 2025.......SUNRISE 7:36 AM MDT SUNSET 6:19 PM MDT  
OCTOBER 23 2025.......SUNRISE 7:38 AM MDT SUNSET 6:18 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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