805  
CDCA42 TJSJ 200502  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
102 AM AST WED SEP 20 2023  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 19 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 1:45 PM 95 2013 89 2 82  
MINIMUM 81 7:32 PM 71 1950 77 4 75  
AVERAGE 86 83 3 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.92 2014 0.21 -0.19 1.63  
MONTH TO DATE 1.37 4.33 -2.96 12.55  
SINCE SEP 1 1.37 4.33 -2.96 12.55  
SINCE JAN 1 32.05 40.27 -8.22 53.94  
 
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 21 18 3 14  
MONTH TO DATE 407 342 65 353  
SINCE SEP 1 407 342 65 353  
SINCE JAN 1 4494 4153 341 4159    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 66  
AVERAGE 74  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 95 1981  
MINIMUM TEMPERATURE (F) 77 72 1920  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 6:13 AM AST SUNSET 6:22 PM AST  
SEPTEMBER 21 2023.....SUNRISE 6:13 AM AST SUNSET 6:21 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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