600  
CDUS45 KRIW 240742  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
142 AM MDT SUN SEP 24 2023  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 23 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 61 4:24 PM 83 1966 67 -6 68  
MINIMUM 35 4:16 AM 19 2000 41 -6 43  
AVERAGE 48 54 -6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.54 2000 0.03 -0.03 0.00  
MONTH TO DATE 0.74 0.58 0.16 0.15  
SINCE SEP 1 0.74 0.58 0.16 0.15  
SINCE JAN 1 4.15 5.82 -1.67 3.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 11 6 9  
MONTH TO DATE 128 155 -27 98  
SINCE SEP 1 128 155 -27 98  
SINCE JUL 1 154 214 -60 103  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 12 8 4 68  
SINCE SEP 1 12 8 4 68  
SINCE JAN 1 323 317 6 537    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 14.2  
 
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 79 12:00 AM  
LOWEST 26 4:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 82 2001  
2020  
MINIMUM TEMPERATURE (F) 41 21 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2023.....SUNRISE 7:06 AM MDT SUNSET 7:10 PM MDT  
SEPTEMBER 25 2023.....SUNRISE 7:07 AM MDT SUNSET 7:08 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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