026  
CDCA42 TJSJ 210447  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1247 AM AST SAT AUG 21 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 20 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 90 3:04 PM 96 1980 89 1 90  
MINIMUM 81 2:52 AM 69 1904 78 3 80  
AVERAGE 86 84 2 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 3.10 1901 0.20 -0.15 0.09  
MONTH TO DATE 2.37 3.86 -1.49 1.34  
SINCE JUN 1 18.17 14.54 3.63 15.66  
SINCE JAN 1 31.63 33.51 -1.88 43.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 21 18 3 20  
MONTH TO DATE 378 360 18 406  
SINCE JUN 1 1476 1466 10 1607  
SINCE JAN 1 3725 3599 126 3997    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 14.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 64  
AVERAGE 73  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 97 1980  
MINIMUM TEMPERATURE (F) 78 72 1956  
 
SUNRISE AND SUNSET  
AUGUST 21 2021........SUNRISE 6:07 AM AST SUNSET 6:47 PM AST  
AUGUST 22 2021........SUNRISE 6:08 AM AST SUNSET 6:46 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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