678  
CDCA42 TJSJ 181959  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
359 PM AST FRI JUL 18 2025  
   
...............................  
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 18 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 90 1:59 PM 91 2005 89 1 91  
2024  
MINIMUM 79 5:21 AM 70 1960 78 1 82  
AVERAGE 85 83 2 87  
 
PRECIPITATION (IN)  
TODAY 0.02 9.23 2013 0.21 -0.19 0.07  
MONTH TO DATE 2.45 3.34 -0.89 2.52  
SINCE JUN 1 6.46 8.00 -1.54 5.93  
SINCE JAN 1 30.86 26.97 3.89 38.81  
 
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 22  
MONTH TO DATE 340 324 16 380  
SINCE JUN 1 867 867 0 1019  
SINCE JAN 1 3191 3000 191 3531    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.8  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 63  
AVERAGE 76  
   
......................................................  
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 2006  
MINIMUM TEMPERATURE (F) 78 70 1960  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 5:57 AM AST SUNSET 7:03 PM AST  
JULY 19 2025..........SUNRISE 5:58 AM AST SUNSET 7:03 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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