937  
CDCA42 TJSJ 180550  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
150 AM AST THU MAR 18 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR MARCH 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 12:23 PM 91 1994 86 -1 86  
MINIMUM 74 7:09 AM 66 1953 73 1 75  
AVERAGE 80 79 1 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 0.87 1987 0.04 0.01 0.20  
MONTH TO DATE 0.27 0.74 -0.47 1.21  
SINCE MAR 1 0.27 0.74 -0.47 1.21  
SINCE JAN 1 2.15 4.55 -2.40 6.16  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 15 14 1 16  
MONTH TO DATE 263 238 25 238  
SINCE MAR 1 263 238 25 238  
SINCE JAN 1 1155 1052 103 1101    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 14.8  
 
SKY COVER  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 93 1994  
MINIMUM TEMPERATURE (F) 73 65 1972  
 
SUNRISE AND SUNSET  
MARCH 18 2021.........SUNRISE 6:25 AM AST SUNSET 6:30 PM AST  
MARCH 19 2021.........SUNRISE 6:25 AM AST SUNSET 6:31 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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