947  
CDCA42 TJSJ 130458  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1258 AM AST WED SEP 13 2023  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 12 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1953 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 3:37 PM 95 1992 89 -1 89  
MINIMUM 84 6:16 AM 73 1984 80 4 80  
2021  
AVERAGE 86 84 2 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.86 1985 0.19 -0.19 0.15  
MONTH TO DATE 0.73 2.31 -1.58 3.27  
SINCE SEP 1 0.73 2.31 -1.58 3.27  
SINCE JAN 1 11.76 23.60 -11.84 22.64  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 21 19 2 20  
MONTH TO DATE 256 239 17 238  
SINCE SEP 1 256 239 17 238  
SINCE JAN 1 4417 4290 127 4136    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 15.7  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91  
LOWEST 77  
AVERAGE 84  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 95 1993  
MINIMUM TEMPERATURE (F) 80 72 1981  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2023.....SUNRISE 6:07 AM AST SUNSET 6:24 PM AST  
SEPTEMBER 14 2023.....SUNRISE 6:07 AM AST SUNSET 6:23 PM AST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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