456  
CDUS45 KRIW 260735  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
135 AM MDT TUE SEP 26 2023  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 25 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 75 4:26 PM 83 2001 67 8 74  
MINIMUM 37 6:27 AM 18 2000 41 -4 46  
AVERAGE 56 54 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.35 1955 0.03 -0.03 0.00  
MONTH TO DATE 0.74 0.64 0.10 0.15  
SINCE SEP 1 0.74 0.64 0.10 0.15  
SINCE JAN 1 4.15 5.88 -1.73 3.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 12 -3 5  
MONTH TO DATE 150 178 -28 111  
SINCE SEP 1 150 178 -28 111  
SINCE JUL 1 176 237 -61 116  
 
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 13 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 3.7  
 
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 54 5:00 AM  
LOWEST 10 4:00 PM  
AVERAGE 32  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 83 2015  
MINIMUM TEMPERATURE (F) 40 24 1996  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2023.....SUNRISE 7:08 AM MDT SUNSET 7:07 PM MDT  
SEPTEMBER 27 2023.....SUNRISE 7:09 AM MDT SUNSET 7:05 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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