362  
CDUS45 KRIW 190045  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT WED JUN 18 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR JUNE 18 2025
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 87 4:46 PM 92 2021 80 7 65  
MINIMUM 46 4:54 AM 37 2020 49 -3 42  
AVERAGE 67 64 3 54  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 2009 0.02 -0.02 0.00  
MONTH TO DATE 0.79 0.67 0.12 0.01  
SINCE JUN 1 0.79 0.67 0.12 0.01  
SINCE JAN 1 5.31 5.13 0.18 4.65  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE JUN 1 0.0 0.0  
SINCE JUL 1 30.7 36.7  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 11  
MONTH TO DATE 62 91 -29 22  
SINCE JUN 1 62 91 -29 22  
SINCE JUL 1 7218 7903 -685 7473  
 
COOLING  
TODAY 2 2 0 0  
MONTH TO DATE 56 27 29 69  
SINCE JUN 1 56 27 29 69  
SINCE JAN 1 62 35 27 69    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89  
LOWEST 11  
AVERAGE 50  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 95 2021  
MINIMUM TEMPERATURE (F) 49 37 2024  
 
SUNRISE AND SUNSET  
JUNE 18 2025..........SUNRISE 5:34 AM MDT SUNSET 8:56 PM MDT  
JUNE 19 2025..........SUNRISE 5:34 AM MDT SUNSET 8:56 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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