027  
CDCA42 TJSJ 100428  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1228 AM AST SUN DEC 10 2023  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 9 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1953 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 1:44 PM 90 1993 86 2 84  
MINIMUM 77 11:59 PM 69 2014 75 2 77  
AVERAGE 83 80 3 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.13 1975 0.10 -0.10 0.00  
MONTH TO DATE T 1.00 -1.00 0.24  
SINCE DEC 1 T 1.00 -1.00 0.24  
SINCE JAN 1 23.57 39.52 -15.95 40.63  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 18 15 3 16  
MONTH TO DATE 155 143 12 133  
SINCE DEC 1 155 143 12 133  
SINCE JAN 1 6072 5841 231 5695    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 14.1  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 57  
AVERAGE 68  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 91 1992  
MINIMUM TEMPERATURE (F) 75 64 1982  
 
SUNRISE AND SUNSET  
DECEMBER 10 2023......SUNRISE 6:41 AM AST SUNSET 5:44 PM AST  
DECEMBER 11 2023......SUNRISE 6:41 AM AST SUNSET 5:45 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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