AFOS product CLISJU
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CLISJU

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN JUAN PR
458 AM AST WED SEP 10 2025

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 9 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   1:44 PM  94    2013  89      0       90        
                                      2021                           
  MINIMUM         77   6:25 AM  70    1988  78     -1       79        
  AVERAGE         83                        83      0       85     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             1.82 1988   0.23  -0.23     0.27     
  MONTH TO DATE    0.83                      2.12  -1.29     1.35     
  SINCE SEP 1      0.83                      2.12  -1.29     1.35     
  SINCE JAN 1     44.45                     38.06   6.39    51.56     

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       18                        18      0       20        
  MONTH TO DATE  172                       162     10      191        
  SINCE SEP 1    172                       162     10      191        
  SINCE JAN 1   4217                      3973    244     4642        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (70)        
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (60)        
  AVERAGE WIND SPEED     4.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  THUNDERSTORM                                                        


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        94      1998                      
                                             2017                     
 MINIMUM TEMPERATURE (F)   78        71      1961                      


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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