517  
CDCA42 TJSJ 010226  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1026 PM AST FRI APR 30 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR APRIL 30 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 86 MM 96 1992 87 -1 87  
MINIMUM 78 MM 70 1986 75 3 76  
AVERAGE 82 81 1 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.31 1963 0.12 -0.11 0.31  
MONTH TO DATE 2.89 2.74 0.15 0.92  
SINCE MAR 1 3.50 4.16 -0.66 3.52  
SINCE JAN 1 5.38 7.97 -2.59 8.47  
 
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 17 16 1 17  
MONTH TO DATE 491 469 22 493  
SINCE MAR 1 988 914 74 923  
SINCE JAN 1 1880 1728 152 1786    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74  
LOWEST 57  
AVERAGE 66  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 96 1994  
MINIMUM TEMPERATURE (F) 75 71 1975  
 
SUNRISE AND SUNSET  
MAY 1 2021...........SUNRISE 5:53 AM AST SUNSET 6:41 PM AST  
MAY 2 2021...........SUNRISE 5:52 AM AST SUNSET 6:42 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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