436  
CDCA42 TJSJ 190856  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
456 AM AST THU DEC 19 2024  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 18 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 2:40 PM 89 1980 84 1 85  
MINIMUM 76 5:13 AM 65 1958 73 3 73  
AVERAGE 81 79 2 79  
 
PRECIPITATION (IN)  
YESTERDAY 1.47 1.63 2024 0.14 1.33 0.01  
MONTH TO DATE 2.92 3.06 M0.14 5.54  
SINCE DEC 1 2.92 3.06 M0.14 5.54  
SINCE JAN 1 77.15 58.08 19.07 54.00  
 
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 16 14 2 14  
MONTH TO DATE 304 252 52 288  
SINCE DEC 1 304 252 52 288  
SINCE JAN 1 6571 5625 946 6187    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 72  
AVERAGE 83  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 89 1994  
MINIMUM TEMPERATURE (F) 73 66 1898  
 
SUNRISE AND SUNSET  
DECEMBER 19 2024......SUNRISE 6:51 AM AST SUNSET 5:52 PM AST  
DECEMBER 20 2024......SUNRISE 6:51 AM AST SUNSET 5:53 PM AST  
 
M INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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