690  
CDUS45 KRIW 180728  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT FRI JUL 18 2025  
   
...............................  
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR JULY 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 89 12:43 PM 97 2023 85 4 88  
MINIMUM 51 4:53 AM 45 1950 56 -5 53  
AVERAGE 70 70 0  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.40 1987 0.01 0.00 0.00  
MONTH TO DATE 0.33 0.24 0.09 0.04  
SINCE JUN 1 0.35 0.94 -0.59 0.29  
SINCE JAN 1 2.66 4.45 -1.79 3.16  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 16 -16 7  
SINCE JUN 1 69 175 -106 62  
SINCE JUL 1 0 16 -16 7  
 
COOLING  
YESTERDAY 5 6 -1 6  
MONTH TO DATE 110 75 35 91  
SINCE JUN 1 201 114 87 189  
SINCE JAN 1 205 116 89 189    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 40 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 6:00 AM  
LOWEST 15 1:00 PM  
AVERAGE 43  
   
......................................................  
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 94 1998  
2006  
2021  
MINIMUM TEMPERATURE (F) 56 46 1993  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 5:58 AM MDT SUNSET 8:47 PM MDT  
JULY 19 2025..........SUNRISE 5:59 AM MDT SUNSET 8:46 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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