283  
CDCA42 TJSJ 202138  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
538 PM AST THU MAY 20 2021  
   
...............................
 
 
   
..THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR MAY 20 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1953 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 86 3:28 PM 95 1995 87 -1 88  
MINIMUM 79 3:51 AM 70 1983 78 1 79  
AVERAGE 83 83 0 84  
 
PRECIPITATION (IN)  
TODAY 0.00 1.70 2011 0.10 -0.10 T  
MONTH TO DATE 1.83 2.05 -0.22 T  
SINCE MAR 1 5.33 6.15 -0.82 3.52  
SINCE JAN 1 7.21 10.69 -3.48 8.47  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 18 18 0 19  
MONTH TO DATE 348 340 8 369  
SINCE MAR 1 1336 1247 89 1292  
SINCE JAN 1 2228 2065 163 2155    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 61  
AVERAGE 70  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 94 1994  
MINIMUM TEMPERATURE (F) 78 71 1989  
 
SUNRISE AND SUNSET  
MAY 20 2021...........SUNRISE 5:45 AM AST SUNSET 6:48 PM AST  
MAY 21 2021...........SUNRISE 5:45 AM AST SUNSET 6:49 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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