303  
CDUS45 KRIW 280729  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT THU SEP 28 2023  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 80 3:31 PM 82 1969 66 14 78  
2001  
2015  
MINIMUM 44 6:04 AM 18 1996 40 4 44  
AVERAGE 62 53 9  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.81 2014 0.03 -0.03 0.00  
MONTH TO DATE 0.74 0.70 0.04 0.15  
SINCE SEP 1 0.74 0.70 0.04 0.15  
SINCE JAN 1 4.15 5.94 -1.79 3.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 12 -9 4  
MONTH TO DATE 157 202 -45 120  
SINCE SEP 1 157 202 -45 120  
SINCE JUL 1 183 261 -78 125  
 
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 21 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 44 5:00 AM  
LOWEST 13 2:00 PM  
AVERAGE 29  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 84 2010  
MINIMUM TEMPERATURE (F) 39 20 1985  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2023.....SUNRISE 7:10 AM MDT SUNSET 7:03 PM MDT  
SEPTEMBER 29 2023.....SUNRISE 7:11 AM MDT SUNSET 7:02 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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