AFOS product CLISJU
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CDCA42 TJSJ 010940
CLISJU

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN JUAN PR
540 AM AST MON SEP 01 2025

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 31 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         90   1:06 PM  94    1995  89      1       91        
  MINIMUM         78   3:26 PM  71    1902  78      0       79        
  AVERAGE         84                        84      0       85     

PRECIPITATION (IN)                                                    
  YESTERDAY        2.45          2.63 1979   0.23   2.22     0.43     
  MONTH TO DATE    9.64                      6.29   3.35     9.16     
  SINCE JUN 1     19.22                     16.97   2.25    17.33     
  SINCE JAN 1     43.62                     35.94   7.68    50.21     

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       19                        18      1       20        
  MONTH TO DATE  608                       572     36      653        
  SINCE JUN 1   1721                      1678     43     1939        
  SINCE JAN 1   4045                      3811    234     4451        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NE (60)        
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (70)        
  AVERAGE WIND SPEED     6.1                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HEAVY RAIN                                                          
  RAIN                                                                
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90                                                        
 LOWEST     63                                                        
 AVERAGE    77                                                        

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   89        97      1981                      
 MINIMUM TEMPERATURE (F)   78        70      1942                      


SUNRISE AND SUNSET                                                    
SEPTEMBER  1 2025.....SUNRISE   6:09 AM AST   SUNSET   6:38 PM AST     
SEPTEMBER  2 2025.....SUNRISE   6:10 AM AST   SUNSET   6:37 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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