538  
CDCA42 TJSJ 200437  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1237 AM AST MON SEP 20 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 19 2021...  
 
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)  
YESTERDAY  
MAXIMUM 88 1:42 PM 95 1994 89 -1 91  
MINIMUM 77 11:59 PM 72 1974 79 -2 79  
AVERAGE 83 84 -1 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 3.31 2005 0.20 -0.11 0.00  
MONTH TO DATE 3.09 3.65 -0.56 3.12  
SINCE SEP 1 3.09 3.65 -0.56 3.12  
SINCE JAN 1 22.23 24.94 -2.71 19.67  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 18 19 -1 20  
MONTH TO DATE 339 372 -33 398  
SINCE SEP 1 339 372 -33 398  
SINCE JAN 1 4590 4423 167 4650    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 61  
AVERAGE 74  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 96 1993  
MINIMUM TEMPERATURE (F) 79 68 1972  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2021.....SUNRISE 6:08 AM AST SUNSET 6:18 PM AST  
SEPTEMBER 21 2021.....SUNRISE 6:09 AM AST SUNSET 6:17 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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