510  
CDUS45 KRIW 170742  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
142 AM MDT SAT MAY 17 2025  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR MAY 16 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 60 MM 81 1988 63 -3 71  
MINIMUM 30 MM 24 1955 39 -9 38  
AVERAGE 45 51 -6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.55 1981 0.05 -0.05 0.00  
MONTH TO DATE 0.23 0.67 -0.44 0.49  
SINCE MAR 1 1.94 2.16 -0.22 2.09  
SINCE JAN 1 2.20 2.91 -0.71 2.56  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 14 6 10  
MONTH TO DATE 205 271 -66 305  
SINCE MAR 1 1636 1944 -308 1933  
SINCE JUL 1 6857 7734 -877 7241  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE MAR 1 1 0 1 0  
SINCE JAN 1 1 0 1 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 13.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 2:00 AM  
LOWEST 24 11:00 AM  
AVERAGE 56  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 82 1973  
MINIMUM TEMPERATURE (F) 39 26 1986  
 
SUNRISE AND SUNSET  
MAY 17 2025...........SUNRISE 5:55 AM MDT SUNSET 8:31 PM MDT  
MAY 18 2025...........SUNRISE 5:54 AM MDT SUNSET 8:32 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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