438  
CDCA42 TJSJ 180432  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1232 AM AST MON JAN 18 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR JANUARY 17 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 12:50 PM 90 1995 85 0 85  
MINIMUM 74 5:22 AM 66 1980 72 2 73  
AVERAGE 80 79 1 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 0.61 2009 0.07 0.01 0.00  
MONTH TO DATE 0.45 1.42 -0.97 1.73  
SINCE DEC 1 1.89 4.38 -2.49 6.66  
SINCE JAN 1 0.45 1.42 -0.97 1.73  
 
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 14  
MONTH TO DATE 248 238 10 243  
SINCE DEC 1 725 689 36 755  
SINCE JAN 1 248 238 10 243    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 61  
AVERAGE 73  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 1991  
MINIMUM TEMPERATURE (F) 72 66 1955  
 
SUNRISE AND SUNSET  
JANUARY 18 2021.......SUNRISE 6:55 AM AST SUNSET 6:06 PM AST  
JANUARY 19 2021.......SUNRISE 6:55 AM AST SUNSET 6:07 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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