AFOS product CLISJU
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CDCA42 TJSJ 170851
CLISJU

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN JUAN PR
451 AM AST WED SEP 17 2025

...................................

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 16 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         89   4:11 PM  93    1900  89      0       92        
  MINIMUM         80   7:10 AM  69    1929  78      2       81        
  AVERAGE         85                        83      2       87     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.05          3.38 1996   0.22  -0.17      T       
  MONTH TO DATE    2.64                      3.69  -1.05     2.22     
  SINCE SEP 1      2.64                      3.69  -1.05     2.22     
  SINCE JAN 1     46.26                     39.63   6.63    52.43     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        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                                                              
  YESTERDAY       20                        18      2       22        
  MONTH TO DATE  310                       288     22      341        
  SINCE SEP 1    310                       288     22      341        
  SINCE JAN 1   4355                      4099    256     4792        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     E (70)        
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (70)        
  AVERAGE WIND SPEED    10.8                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.5                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  THUNDERSTORM                                                        
  LIGHT RAIN                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91                                                        
 LOWEST     68                                                        
 AVERAGE    80                                                        

..........................................................


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   89        95      1995                      
 MINIMUM TEMPERATURE (F)   78        72      1954                      


SUNRISE AND SUNSET                                                    
SEPTEMBER 17 2025.....SUNRISE   6:12 AM AST   SUNSET   6:24 PM AST     
SEPTEMBER 18 2025.....SUNRISE   6:12 AM AST   SUNSET   6:23 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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