843  
CDCA42 TJSJ 210438  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1238 AM AST THU JAN 21 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR JANUARY 20 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 85 12:35 PM 89 1995 85 0 81  
MINIMUM 75 6:58 AM 64 2000 72 3 72  
AVERAGE 80 79 1 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.76 2005 0.08 -0.07 0.29  
MONTH TO DATE 0.52 1.66 -1.14 2.10  
SINCE DEC 1 1.96 4.62 -2.66 7.03  
SINCE JAN 1 0.52 1.66 -1.14 2.10  
 
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 15 14 1 12  
MONTH TO DATE 294 280 14 283  
SINCE DEC 1 771 731 40 795  
SINCE JAN 1 294 280 14 283    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 59  
AVERAGE 69  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 91 1995  
MINIMUM TEMPERATURE (F) 72 66 1956  
 
SUNRISE AND SUNSET  
JANUARY 21 2021.......SUNRISE 6:55 AM AST SUNSET 6:08 PM AST  
JANUARY 22 2021.......SUNRISE 6:55 AM AST SUNSET 6:08 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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