634  
CDCA42 TJSJ 220857  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
457 AM AST THU MAY 22 2025  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 21 2025
 
 
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)  
YESTERDAY  
MAXIMUM 87 2:55 PM 95 2005 88 -1 95  
2024  
MINIMUM 77 6:31 AM 69 2011 76 1 80  
AVERAGE 82 82 0 88  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 2.56 1939 0.18 -0.07 T  
MONTH TO DATE 5.82 3.76 2.06 7.72  
SINCE MAR 1 16.49 10.54 5.95 19.75  
SINCE JAN 1 23.28 17.19 6.09 29.09  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 17 0 23  
MONTH TO DATE 329 341 -12 405  
SINCE MAR 1 1262 1214 48 1411  
SINCE JAN 1 2146 1961 185 2304    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 70  
AVERAGE 80  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 94 2005  
MINIMUM TEMPERATURE (F) 76 69 1957  
 
SUNRISE AND SUNSET  
MAY 22 2025...........SUNRISE 5:48 AM AST SUNSET 6:53 PM AST  
MAY 23 2025...........SUNRISE 5:48 AM AST SUNSET 6:54 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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