263  
CDCA42 TJSJ 312123  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
523 PM AST SUN DEC 31 2023  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 31 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 84 1:49 PM 87 1995 83 1 85  
MINIMUM 74 5:36 AM 65 1917 73 1 73  
AVERAGE 79 78 1 79  
 
PRECIPITATION (IN)  
TODAY 0.06 2.50 1936 0.13 -0.07 0.09  
MONTH TO DATE 7.71 4.85 2.86 3.72  
SINCE DEC 1 7.71 4.85 2.86 3.72  
SINCE JAN 1 56.22 59.87 -3.65 71.76  
 
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 14 13 1 14  
MONTH TO DATE 464 426 38 453  
SINCE DEC 1 464 426 38 453  
SINCE JAN 1 6363 5799 564 5917    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 65  
AVERAGE 78  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 87 1987  
MINIMUM TEMPERATURE (F) 73 66 1957  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 6:56 AM AST SUNSET 5:58 PM AST  
JANUARY 1 2024.......SUNRISE 6:56 AM AST SUNSET 5:59 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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