346  
CDUS45 KRIW 190727  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SUN OCT 19 2025  
   
...............................  
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR OCTOBER 18 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 55 4:26 PM 75 2003 55 0 37  
MINIMUM 36 6:10 AM 18 1976 32 4 31  
AVERAGE 46 44 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.27 1969 0.03 -0.03 0.12  
MONTH TO DATE 0.66 0.51 0.15 0.28  
SINCE SEP 1 1.20 1.30 -0.10 0.67  
SINCE JAN 1 4.14 6.54 -2.40 4.90  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 21 -2 31  
MONTH TO DATE 276 321 -45 141  
SINCE SEP 1 439 563 -124 268  
SINCE JUL 1 457 622 -165 299  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE SEP 1 20 11 9 38  
SINCE JAN 1 442 320 122 445    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 18.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 6:00 AM  
LOWEST 22 5:00 PM  
AVERAGE 48  
   
......................................................  
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 74 1974  
2003  
MINIMUM TEMPERATURE (F) 32 13 1976  
 
SUNRISE AND SUNSET  
OCTOBER 19 2025.......SUNRISE 7:33 AM MDT SUNSET 6:28 PM MDT  
OCTOBER 20 2025.......SUNRISE 7:34 AM MDT SUNSET 6:27 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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