683  
CDCA42 TJSJ 190034  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
834 PM AST TUE MAY 18 2021  
   
...............................
 
 
   
..THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR MAY 18 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1953 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87 3:28 PM 95 1995 87 0 88  
MINIMUM 79 6:25 AM 69 1972 78 1 81  
AVERAGE 83 82 1 85  
 
PRECIPITATION (IN)  
TODAY T 2.51 1985 0.11 -0.11 T  
MONTH TO DATE 1.83 1.85 -0.02 T  
SINCE MAR 1 5.33 5.95 -0.62 3.52  
SINCE JAN 1 7.21 10.49 -3.28 8.47  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 18 17 1 20  
MONTH TO DATE 311 304 7 332  
SINCE MAR 1 1299 1211 88 1255  
SINCE JAN 1 2191 2029 162 2118    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77  
LOWEST 61  
AVERAGE 69  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 97 1995  
MINIMUM TEMPERATURE (F) 78 71 1960  
 
SUNRISE AND SUNSET  
MAY 18 2021...........SUNRISE 5:45 AM AST SUNSET 6:47 PM AST  
MAY 19 2021...........SUNRISE 5:45 AM AST SUNSET 6:48 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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