661  
CDCA42 TJSJ 101924  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
324 PM AST WED SEP 10 2025  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 10 2025
 
 
VALID TODAY AS OF 0300 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 94R 1:38 PM 94 1998 89 5 90  
2017  
MINIMUM 78 6:30 AM 71 1961 78 0 78  
AVERAGE 86 83 3 84  
 
PRECIPITATION (IN)  
TODAY 0.01 8.20 1996 0.23 -0.22 0.43  
MONTH TO DATE 0.84 2.35 -1.51 1.78  
SINCE SEP 1 0.84 2.35 -1.51 1.78  
SINCE JAN 1 44.46 38.29 6.17 51.99  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 21 18 3 19  
MONTH TO DATE 193 180 13 210  
SINCE SEP 1 193 180 13 210  
SINCE JAN 1 4238 3991 247 4661    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 4.1  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 52  
AVERAGE 71  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1994  
MINIMUM TEMPERATURE (F) 78 71 1909  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2025.....SUNRISE 6:11 AM AST SUNSET 6:30 PM AST  
SEPTEMBER 11 2025.....SUNRISE 6:11 AM AST SUNSET 6:29 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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