159  
CDCA42 TJSJ 182134  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
534 PM AST MON OCT 18 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR OCTOBER 18 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 89 2:34 PM 94 1979 89 0 88  
MINIMUM 79 6:59 AM 70 1957 77 2 77  
AVERAGE 84 83 1 83  
 
PRECIPITATION (IN)  
TODAY MM 3.07 1956 0.16 MM T  
MONTH TO DATE 3.55 2.75 0.80 3.69  
SINCE SEP 1 8.03 9.25 -1.22 8.72  
SINCE JAN 1 39.97 45.19 -5.22 54.75  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 19 18 1 18  
MONTH TO DATE 350 324 26 326  
SINCE SEP 1 954 874 80 909  
SINCE JAN 1 4903 4685 218 5113    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 67  
AVERAGE 78  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1978  
MINIMUM TEMPERATURE (F) 77 70 1959  
 
SUNRISE AND SUNSET  
OCTOBER 18 2021.......SUNRISE 6:19 AM AST SUNSET 5:59 PM AST  
OCTOBER 19 2021.......SUNRISE 6:19 AM AST SUNSET 5:59 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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