940  
CDCA42 TJSJ 310436  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1236 AM AST SUN DEC 31 2023  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 30 2023
 
 
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)  
YESTERDAY  
MAXIMUM 83 2:47 PM 89 1997 84 -1 83  
MINIMUM 73 7:19 AM 63 1917 73 0 75  
AVERAGE 78 78 0 79  
 
PRECIPITATION (IN)  
YESTERDAY T 2.25 1936 0.13 -0.13 0.09  
MONTH TO DATE 7.65 4.72 2.93 3.63  
SINCE DEC 1 7.65 4.72 2.93 3.63  
SINCE JAN 1 56.16 59.74 -3.58 71.67  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 13 13 0 14  
MONTH TO DATE 450 411 39 439  
SINCE DEC 1 450 411 39 439  
SINCE JAN 1 6349 5784 565 5903    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 63  
AVERAGE 77  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 87 1995  
MINIMUM TEMPERATURE (F) 73 65 1917  
 
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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