453  
CDCA42 TJSJ 310433  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1233 AM AST TUE AUG 31 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 30 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 88 3:12 PM 95 2008 89 -1 89  
MINIMUM 81 6:48 AM 70 1954 78 3 82  
AVERAGE 85 84 1 86  
 
PRECIPITATION (IN)  
YESTERDAY T 3.52 2010 0.23 -0.23 0.02  
MONTH TO DATE 2.67 6.06 -3.39 3.22  
SINCE JUN 1 18.47 16.74 1.73 17.54  
SINCE JAN 1 31.93 35.71 -3.78 45.76  
 
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 20 18 2 21  
MONTH TO DATE 583 540 43 594  
SINCE JUN 1 1681 1646 35 1795  
SINCE JAN 1 3930 3779 151 4185    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77  
LOWEST 63  
AVERAGE 70  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1995  
MINIMUM TEMPERATURE (F) 78 71 1902  
 
SUNRISE AND SUNSET  
AUGUST 31 2021........SUNRISE 6:09 AM AST SUNSET 6:39 PM AST  
SEPTEMBER 1 2021.....SUNRISE 6:09 AM AST SUNSET 6:38 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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