950  
CDCA42 TJSJ 302137  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
537 PM AST WED DEC 30 2020  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 30 2020...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1953 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 84 1:35 PM 90 1987 85 -1 85  
MINIMUM 77 6:07 AM 66 1972 73 4 76  
AVERAGE 81 79 2 81  
 
PRECIPITATION (IN)  
TODAY T 1.67 1992 0.08 -0.08 0.13  
MONTH TO DATE 1.37 2.88 -1.51 3.82  
SINCE DEC 1 1.37 2.88 -1.51 3.82  
SINCE JAN 1 36.13 39.26 -3.13 36.02  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 16 14 2 16  
MONTH TO DATE 464 436 28 498  
SINCE DEC 1 464 436 28 498  
SINCE JAN 1 6396 6030 366 6246    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 14.3  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69  
LOWEST 56  
AVERAGE 63  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 90 1994  
MINIMUM TEMPERATURE (F) 73 65 1972  
 
SUNRISE AND SUNSET  
DECEMBER 30 2020......SUNRISE 6:51 AM AST SUNSET 5:54 PM AST  
DECEMBER 31 2020......SUNRISE 6:52 AM AST SUNSET 5:55 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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