AFOS product CLISJU
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CDCA42 TJSJ 280850
CLISJU

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN JUAN PR
450 AM AST MON JUL 28 2025

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 27 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         87  10:30 AM  93    1965  89     -2       91        
  MINIMUM         78  10:05 PM  70    1899  78      0       82        
  AVERAGE         83                        83      0       87     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.57          2.19 1899   0.21   0.36     0.01     
  MONTH TO DATE    5.18                      5.24  -0.06     3.61     
  SINCE JUN 1      9.19                      9.90  -0.71     7.02     
  SINCE JAN 1     33.59                     28.87   4.72    39.90     

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       18                        18      0       22        
  MONTH TO DATE  508                       486     22      567        
  SINCE JUN 1   1035                      1029      6     1206        
  SINCE JAN 1   3359                      3162    197     3718        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (70)        
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (100)       
  AVERAGE WIND SPEED     6.7                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94                                                        
 LOWEST     75                                                        
 AVERAGE    85                                                        

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   89        92      1981                      
 MINIMUM TEMPERATURE (F)   78        70      1899                      


SUNRISE AND SUNSET                                                    
JULY 28 2025..........SUNRISE   6:01 AM AST   SUNSET   7:00 PM AST     
JULY 29 2025..........SUNRISE   6:01 AM AST   SUNSET   7:00 PM AST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$