419  
CDCA42 TJSJ 162120  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
520 PM AST TUE DEC 16 2025  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 16 2025...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1953 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87 2:22 PM 92 1994 85 2 87  
MINIMUM 77 6:28 AM 69 1954 75 2 76  
AVERAGE 82 80 2 82  
 
PRECIPITATION (IN)  
TODAY T 1.04 2004 0.09 -0.09 0.00  
MONTH TO DATE 0.89 1.68 -0.79 0.48  
SINCE DEC 1 0.89 1.68 -0.79 0.48  
SINCE JAN 1 29.55 40.20 -10.65 35.55  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 15 2 17  
MONTH TO DATE 253 248 5 259  
SINCE DEC 1 253 248 5 259  
SINCE JAN 1 5630 5946 -316 4747    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 77  
AVERAGE 86  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 91 1994  
MINIMUM TEMPERATURE (F) 75 65 1972  
 
SUNRISE AND SUNSET  
DECEMBER 16 2025......SUNRISE 6:45 AM AST SUNSET 5:47 PM AST  
DECEMBER 17 2025......SUNRISE 6:45 AM AST SUNSET 5:47 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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