074  
CDUS45 KRIW 310728  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT SUN AUG 31 2025  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 30 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 78 4:31 PM 91 1954 77 1 81  
MINIMUM 48 6:21 AM 35 1964 50 -2 45  
AVERAGE 63 63 0  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.66 1981 0.02 -0.02 0.00  
MONTH TO DATE 0.23 0.54 -0.31 0.85  
SINCE JUN 1 0.63 1.71 -1.08 1.36  
SINCE JAN 1 2.94 5.22 -2.28 4.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 3 -1 2  
MONTH TO DATE 17 32 -15 24  
SINCE JUN 1 86 212 -126 86  
SINCE JUL 1 17 53 -36 31  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 136 109 27 134  
SINCE JUN 1 418 307 111 406  
SINCE JAN 1 422 309 113 406    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 6:00 AM  
LOWEST 16 4:00 PM  
AVERAGE 51  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 89 2022  
MINIMUM TEMPERATURE (F) 49 33 1962  
 
SUNRISE AND SUNSET  
AUGUST 31 2025........SUNRISE 6:42 AM MDT SUNSET 7:50 PM MDT  
SEPTEMBER 1 2025.....SUNRISE 6:43 AM MDT SUNSET 7:49 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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