580  
CDCA42 TJSJ 040426  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1226 AM AST MON OCT 04 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR OCTOBER 3 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 92 1:07 PM 96 1982 89 3 87  
MINIMUM 79 3:01 AM 69 1938 77 2 76  
AVERAGE 86 83 3 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.00 1967 0.17 -0.17 0.18  
MONTH TO DATE 0.28 0.51 -0.23 1.11  
SINCE SEP 1 4.76 7.01 -2.25 6.14  
SINCE JAN 1 36.70 42.95 -6.25 52.17  
 
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 17  
MONTH TO DATE 59 54 5 52  
SINCE SEP 1 663 604 59 635  
SINCE JAN 1 4612 4415 197 4839    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 54  
AVERAGE 70  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 95 2015  
MINIMUM TEMPERATURE (F) 77 71 1945  
 
SUNRISE AND SUNSET  
OCTOBER 4 2021.......SUNRISE 6:15 AM AST SUNSET 6:10 PM AST  
OCTOBER 5 2021.......SUNRISE 6:15 AM AST SUNSET 6:09 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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