AFOS product CLISJU
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
352 
CDCA42 TJSJ 090916
CLISJU

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN JUAN PR
516 AM AST TUE SEP 09 2025

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 8 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         88  12:26 PM  95    1995  89     -1       89        
  MINIMUM         76   4:59 AM  71    1956  78     -2       82        
  AVERAGE         82                        83     -1       86     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.31          1.61 1989   0.23   0.08     0.27     
  MONTH TO DATE    0.83                      1.89  -1.06     1.08     
  SINCE SEP 1      0.83                      1.89  -1.06     1.08     
  SINCE JAN 1     44.45                     37.83   6.62    51.29     

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       17                        18     -1       21        
  MONTH TO DATE  154                       144     10      171        
  SINCE SEP 1    154                       144     10      171        
  SINCE JAN 1   4199                      3955    244     4622        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     E (80)        
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     E (80)        
  AVERAGE WIND SPEED     3.8                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94                                                        
 LOWEST     70                                                        
 AVERAGE    82                                                        

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   89        94      2013                      
                                             2021                     
 MINIMUM TEMPERATURE (F)   78        70      1988                      


SUNRISE AND SUNSET                                                    
SEPTEMBER  9 2025.....SUNRISE   6:11 AM AST   SUNSET   6:31 PM AST     
SEPTEMBER 10 2025.....SUNRISE   6:11 AM AST   SUNSET   6:30 PM AST     


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




$$