428  
CDUS45 KRIW 220728  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT SUN JUN 22 2025  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR JUNE 21 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 4:45 PM 91 1988 77 8 78  
2016  
MINIMUM 49 5:43 AM 33 1960 48 1 51  
AVERAGE 67 63 4  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.43 1948 0.02 -0.02 0.18  
MONTH TO DATE 0.02 0.54 -0.52 0.25  
SINCE JUN 1 0.02 0.54 -0.52 0.25  
SINCE JAN 1 2.33 4.05 -1.72 3.12  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 0  
MONTH TO DATE 44 133 -89 54  
SINCE JUN 1 44 133 -89 54  
SINCE JUL 1 7046 8038 -992 7489  
 
COOLING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 67 17 50 41  
SINCE JUN 1 67 17 50 41  
SINCE JAN 1 71 19 52 41    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 14.1  
 
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 46 5:00 AM  
LOWEST 8 5:00 PM  
AVERAGE 27  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 92 1954  
2021  
MINIMUM TEMPERATURE (F) 49 34 1989  
 
SUNRISE AND SUNSET  
JUNE 22 2025..........SUNRISE 5:43 AM MDT SUNSET 8:54 PM MDT  
JUNE 23 2025..........SUNRISE 5:43 AM MDT SUNSET 8:54 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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