331  
CDCA42 TJSJ 180426  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1226 AM AST SUN APR 18 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR APRIL 17 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1898 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 3:26 PM 97 1983 86 6 86  
MINIMUM 76 6:21 AM 67 1965 75 1 74  
AVERAGE 84 80 4 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.54 2017 0.17 -0.17 T  
MONTH TO DATE 1.11 2.27 -1.16 3.76  
SINCE MAR 1 3.18 4.22 -1.04 8.71  
SINCE JAN 1 8.28 10.37 -2.09 26.02  
 
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 15 4 15  
MONTH TO DATE 245 255 -10 278  
SINCE MAR 1 691 686 5 680  
SINCE JAN 1 1492 1437 55 1569    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 45  
AVERAGE 68  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 92 2001  
MINIMUM TEMPERATURE (F) 75 68 1962  
 
SUNRISE AND SUNSET  
APRIL 18 2021.........SUNRISE 6:05 AM AST SUNSET 6:42 PM AST  
APRIL 19 2021.........SUNRISE 6:04 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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