261  
CDUS45 KRIW 110727  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SAT JUL 11 2026  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR JULY 10 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 2:24 PM 95 1976 84 5 86  
MINIMUM 52 4:02 AM 42 1951 54 -2 57  
AVERAGE 71 69 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.50 1987 0.02 -0.02 0.11  
MONTH TO DATE T 0.14 -0.14 0.32  
SINCE JUN 1 0.24 0.84 -0.60 0.34  
SINCE JAN 1 2.08 4.35 -2.27 2.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 4 14 -10 0  
SINCE JUN 1 111 173 -62 69  
SINCE JUL 1 4 14 -10 0  
 
COOLING  
YESTERDAY 6 5 1 7  
MONTH TO DATE 54 38 16 60  
SINCE JUN 1 93 77 16 151  
SINCE JAN 1 95 79 16 155    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 7.9  
 
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 42 3:00 AM  
LOWEST 10 2:00 PM  
AVERAGE 26  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 96 2024  
MINIMUM TEMPERATURE (F) 54 40 1951  
 
SUNRISE AND SUNSET  
JULY 11 2026..........SUNRISE 5:52 AM MDT SUNSET 8:51 PM MDT  
JULY 12 2026..........SUNRISE 5:53 AM MDT SUNSET 8:50 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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