516  
CDCA42 TJSJ 190432  
CLIIST  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1232 AM AST THU AUG 19 2021  
   
...............................
 
 
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 18 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 91 11:55 AM 95 1994 90 1 94  
MINIMUM 81 6:34 AM 73 1953 80 1 83  
AVERAGE 86 85 1 89  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 2.73 2013 0.13 -0.10 0.00  
MONTH TO DATE 4.32 2.36 1.96 0.49  
SINCE JUN 1 11.28 7.62 3.66 6.75  
SINCE JAN 1 19.11 19.28 -0.17 15.22  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 21 20 1 24  
MONTH TO DATE 364 360 4 375  
SINCE JUN 1 1558 1537 21 1618  
SINCE JAN 1 3985 3800 185 3978    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 14.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
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) 90 96 1993  
MINIMUM TEMPERATURE (F) 80 74 1979  
 
SUNRISE AND SUNSET  
AUGUST 19 2021........SUNRISE 6:03 AM AST SUNSET 6:44 PM AST  
AUGUST 20 2021........SUNRISE 6:03 AM AST SUNSET 6:43 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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