668  
CDCA42 TJSJ 201939  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
339 PM AST SAT DEC 20 2025  
   
...............................  
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 20 2025  
 
VALID TODAY AS OF 0300 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 1:59 PM 90 1995 84 1 87  
MINIMUM 75 7:45 AM 66 1959 73 2 76  
AVERAGE 80 78 2 82  
 
PRECIPITATION (IN)  
TODAY 0.15 1.89 1987 0.14 0.01 T  
MONTH TO DATE 2.34 3.35 -1.01 3.38  
SINCE DEC 1 2.34 3.35 -1.01 3.38  
SINCE JAN 1 63.06 58.37 4.69 77.61  
 
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 15 14 1 17  
MONTH TO DATE 307 280 27 337  
SINCE DEC 1 307 280 27 337  
SINCE JAN 1 6013 5653 360 6604    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 61  
AVERAGE 76  
   
......................................................  
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 90 1965  
MINIMUM TEMPERATURE (F) 73 64 1958  
 
SUNRISE AND SUNSET  
DECEMBER 20 2025......SUNRISE 6:51 AM AST SUNSET 5:53 PM AST  
DECEMBER 21 2025......SUNRISE 6:51 AM AST SUNSET 5:53 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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