440  
CDCA42 TJSJ 310945  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
545 AM AST SUN AUG 31 2025  
   
...............................  
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 30 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 91 1:27 PM 95 2008 89 2 90  
MINIMUM 80 11:47 PM 70 1954 78 2 79  
AVERAGE 86 84 2 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.42 3.52 2010 0.23 0.19 0.56  
MONTH TO DATE 7.19 6.06 1.13 8.73  
SINCE JUN 1 16.77 16.74 0.03 16.90  
SINCE JAN 1 41.17 35.71 5.46 49.78  
 
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 21 18 3 20  
MONTH TO DATE 589 540 49 633  
SINCE JUN 1 1702 1646 56 1919  
SINCE JAN 1 4026 3779 247 4431    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 59  
AVERAGE 73  
   
......................................................  
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1995  
MINIMUM TEMPERATURE (F) 78 71 1902  
 
SUNRISE AND SUNSET  
AUGUST 31 2025........SUNRISE 6:09 AM AST SUNSET 6:39 PM AST  
SEPTEMBER 1 2025.....SUNRISE 6:09 AM AST SUNSET 6:38 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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