124  
CDCA42 TJSJ 211952  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
352 PM AST THU AUG 21 2025  
   
...............................  
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 21 2025  
 
VALID TODAY AS OF 0300 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 89 1:59 PM 97 1980 89 0 91  
MINIMUM 81 7:13 AM 72 1956 78 3 80  
AVERAGE 85 84 1 86  
 
PRECIPITATION (IN)  
TODAY 0.00 2.72 1983 0.20 -0.20 0.36  
MONTH TO DATE 5.45 4.06 1.39 7.41  
SINCE JUN 1 15.03 14.74 0.29 15.58  
SINCE JAN 1 39.43 33.71 5.72 48.46  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 20 18 2 21  
MONTH TO DATE 409 378 31 445  
SINCE JUN 1 1522 1484 38 1731  
SINCE JAN 1 3846 3617 229 4243    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 63  
AVERAGE 71  
   
......................................................  
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 2007  
MINIMUM TEMPERATURE (F) 78 70 1916  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 6:07 AM AST SUNSET 6:46 PM AST  
AUGUST 22 2025........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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