133  
CDCA42 TJSJ 182153  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
553 PM AST SAT SEP 18 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 18 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 88 1:04 PM 96 1994 89 -1 91  
MINIMUM 75 5:09 AM 71 1972 80 -5 82  
AVERAGE 82 84 -2 87  
 
PRECIPITATION (IN)  
TODAY 0.01 2.14 1960 0.18 -0.17 0.00  
MONTH TO DATE 2.81 3.45 -0.64 3.12  
SINCE SEP 1 2.81 3.45 -0.64 3.12  
SINCE JAN 1 21.95 24.74 -2.79 19.67  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 19 -2 22  
MONTH TO DATE 323 353 -30 378  
SINCE SEP 1 323 353 -30 378  
SINCE JAN 1 4574 4404 170 4630    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 59  
AVERAGE 72  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 95 1994  
MINIMUM TEMPERATURE (F) 79 72 1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2021.....SUNRISE 6:08 AM AST SUNSET 6:19 PM AST  
SEPTEMBER 19 2021.....SUNRISE 6:08 AM AST SUNSET 6:18 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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