546  
CDCA42 TJSJ 200850  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
450 AM AST WED AUG 20 2025  
   
...............................  
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 19 2025  
 
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)  
YESTERDAY  
MAXIMUM 93R 2:57 PM 93 1991 89 4 91  
2020  
2025  
MINIMUM 81 6:02 AM 73 1956 78 3 81  
AVERAGE 87 84 3 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 1.35 1926 0.21 -0.13 0.01  
MONTH TO DATE 5.45 3.66 1.79 7.03  
SINCE JUN 1 15.03 14.34 0.69 15.20  
SINCE JAN 1 39.43 33.31 6.12 48.08  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 22 18 4 21  
MONTH TO DATE 368 342 26 402  
SINCE JUN 1 1481 1448 33 1688  
SINCE JAN 1 3805 3581 224 4200    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 52  
AVERAGE 67  
   
......................................................  
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 96 1980  
MINIMUM TEMPERATURE (F) 78 69 1904  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 6:07 AM AST SUNSET 6:47 PM AST  
AUGUST 21 2025........SUNRISE 6:07 AM AST SUNSET 6:46 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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