909  
CDCA42 TJSJ 170441  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1241 AM AST SUN DEC 17 2023  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 16 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 84 12:58 PM 90 1980 84 0 85  
MINIMUM 74 7:06 AM 66 1964 73 1 74  
AVERAGE 79 79 0 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.45 3.82 2014 0.16 0.29 0.42  
MONTH TO DATE 5.00 2.77 2.23 1.23  
SINCE DEC 1 5.00 2.77 2.23 1.23  
SINCE JAN 1 53.51 57.79 -4.28 69.27  
 
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 14 14 0 15  
MONTH TO DATE 260 224 36 231  
SINCE DEC 1 260 224 36 231  
SINCE JAN 1 6159 5597 562 5695    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 11.5  
 
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 90 1987  
MINIMUM TEMPERATURE (F) 73 65 1916  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 6:49 AM AST SUNSET 5:51 PM AST  
DECEMBER 18 2023......SUNRISE 6:50 AM AST SUNSET 5:51 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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