844  
CDCA42 TJSJ 170425  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1225 AM AST MON MAY 17 2021  
   
...............................
 
 
   
..THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR MAY 16 2021
 
 
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)  
YESTERDAY  
MAXIMUM 87 2:35 PM 95 1995 87 0 88  
MINIMUM 80 11:59 PM 71 1956 78 2 79  
AVERAGE 84 82 2 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.84 2015 0.11 -0.11 T  
MONTH TO DATE 1.83 1.64 0.19 T  
SINCE MAR 1 5.33 5.74 -0.41 3.52  
SINCE JAN 1 7.21 10.28 -3.07 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 19 17 2 19  
MONTH TO DATE 275 270 5 293  
SINCE MAR 1 1263 1177 86 1216  
SINCE JAN 1 2155 1995 160 2079    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 11.6  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76  
LOWEST 61  
AVERAGE 69  
   
......................................................
 
 
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 96 1994  
MINIMUM TEMPERATURE (F) 78 68 1972  
 
SUNRISE AND SUNSET  
MAY 17 2021...........SUNRISE 5:46 AM AST SUNSET 6:47 PM AST  
MAY 18 2021...........SUNRISE 5:45 AM AST SUNSET 6:47 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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