325  
CDUS45 KRIW 200731  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT WED SEP 20 2023  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 19 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 73 1:10 PM 86 2010 69 4 80  
MINIMUM 47 4:57 AM 21 1965 43 4 48  
AVERAGE 60 56 4  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.87 1950 0.03 -0.02 0.00  
MONTH TO DATE 0.56 0.46 0.10 0.15  
SINCE SEP 1 0.56 0.46 0.10 0.15  
SINCE JAN 1 3.97 5.70 -1.73 3.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 9 -4 1  
MONTH TO DATE 79 114 -35 77  
SINCE SEP 1 79 114 -35 77  
SINCE JUL 1 105 173 -68 82  
 
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 35 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 10:00 PM  
LOWEST 25 1:00 PM  
AVERAGE 50  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 81 1966  
MINIMUM TEMPERATURE (F) 42 19 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 7:01 AM MDT SUNSET 7:17 PM MDT  
SEPTEMBER 21 2023.....SUNRISE 7:03 AM MDT SUNSET 7:15 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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