320  
CDUS45 KRIW 210727  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SAT JUN 21 2025  
   
...............................  
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR JUNE 20 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 88 4:09 PM 91 2016 77 11 84  
MINIMUM 62 5:26 AM 33 1975 48 14 49  
AVERAGE 75 62 13  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.43 1967 0.02 -0.02 0.00  
MONTH TO DATE 0.02 0.52 -0.50 0.07  
SINCE JUN 1 0.02 0.52 -0.50 0.07  
SINCE JAN 1 2.33 4.03 -1.70 2.94  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 0  
MONTH TO DATE 44 129 -85 54  
SINCE JUN 1 44 129 -85 54  
SINCE JUL 1 7046 8034 -988 7489  
 
COOLING  
YESTERDAY 10 1 9 2  
MONTH TO DATE 65 15 50 41  
SINCE JUN 1 65 15 50 41  
SINCE JAN 1 69 17 52 41    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 19.4  
 
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 17 4:00 AM  
LOWEST 6 6:00 PM  
AVERAGE 12  
   
......................................................  
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 91 1988  
2016  
MINIMUM TEMPERATURE (F) 48 33 1960  
 
SUNRISE AND SUNSET  
JUNE 21 2025..........SUNRISE 5:42 AM MDT SUNSET 8:54 PM MDT  
JUNE 22 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.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab WY Page
Main Text Page