053  
CDCA42 TJSJ 280426  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1226 AM AST TUE SEP 28 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 27 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 3:04 PM 94 2015 89 0 90  
MINIMUM 80 6:34 AM 70 1949 77 3 79  
AVERAGE 85 83 2 85  
 
PRECIPITATION (IN)  
YESTERDAY T 2.32 1932 0.20 -0.20 0.05  
MONTH TO DATE 4.39 5.92 -1.53 4.08  
SINCE SEP 1 4.39 5.92 -1.53 4.08  
SINCE JAN 1 36.32 41.86 -5.54 50.11  
 
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 20 18 2 20  
MONTH TO DATE 545 486 59 526  
SINCE SEP 1 545 486 59 526  
SINCE JAN 1 4494 4297 197 4730    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 63  
AVERAGE 73  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 95 2013  
MINIMUM TEMPERATURE (F) 77 69 1920  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2021.....SUNRISE 6:14 AM AST SUNSET 6:15 PM AST  
SEPTEMBER 29 2021.....SUNRISE 6:14 AM AST SUNSET 6:14 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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