036  
CDUS45 KRIW 060735  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
135 AM MDT MON OCT 06 2025  
   
...............................  
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR OCTOBER 5 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 46 1:52 PM 77 1996 64 -18 76  
1997  
MINIMUM 32 10:38 PM 19 2013 36 -4 49  
AVERAGE 39 50 -11 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.69R 0.11 0.04 0.65 0.00  
MONTH TO DATE 0.97 0.19 0.78 0.00  
SINCE SEP 1 1.96 0.96 1.00 0.07  
SINCE JAN 1 8.21 7.32 0.89 5.50  
 
SNOWFALL (IN)  
YESTERDAY T 0.2 2005 0.0  
2012  
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 26 15 11 2  
MONTH TO DATE 47 71 -24 31  
SINCE SEP 1 144 276 -132 117  
SINCE JUL 1 147 312 -165 135  
 
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 22 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 7:00 PM  
LOWEST 82 12:00 AM  
AVERAGE 91  
   
......................................................  
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 82 2020  
MINIMUM TEMPERATURE (F) 36 18 2009  
 
SUNRISE AND SUNSET  
OCTOBER 6 2025.......SUNRISE 7:17 AM MDT SUNSET 6:46 PM MDT  
OCTOBER 7 2025.......SUNRISE 7:18 AM MDT SUNSET 6:44 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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