583  
CDUS45 KRIW 180731  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT WED JUN 18 2025  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR JUNE 17 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 80 3:59 PM 92 2021 76 4 81  
MINIMUM 57 11:59 PM 32 1998 47 10 36  
AVERAGE 69 61 8  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.59 1993 0.02 -0.02 T  
MONTH TO DATE 0.02 0.45 -0.43 0.07  
SINCE JUN 1 0.02 0.45 -0.43 0.07  
SINCE JAN 1 2.33 3.96 -1.63 2.94  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 6  
MONTH TO DATE 44 117 -73 28  
SINCE JUN 1 44 117 -73 28  
SINCE JUL 1 7046 8022 -976 7463  
 
COOLING  
YESTERDAY 4 1 3 0  
MONTH TO DATE 46 12 34 39  
SINCE JUN 1 46 12 34 39  
SINCE JAN 1 50 14 36 39    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 13.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 60 2:00 AM  
LOWEST 10 1:00 PM  
AVERAGE 35  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 2021  
MINIMUM TEMPERATURE (F) 48 29 1973  
 
SUNRISE AND SUNSET  
JUNE 18 2025..........SUNRISE 5:42 AM MDT SUNSET 8:53 PM MDT  
JUNE 19 2025..........SUNRISE 5:42 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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