516  
CDCA42 TJSJ 280511  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
111 AM AST FRI MAY 28 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 27 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 88 1:58 PM 95 1983 88 0 91  
MINIMUM 78 6:15 AM 69 1957 76 2 79  
AVERAGE 83 82 1 85  
 
PRECIPITATION (IN)  
YESTERDAY T 1.89 1952 0.17 -0.17 0.04  
MONTH TO DATE 2.25 4.81 -2.56 1.38  
SINCE MAR 1 6.50 11.59 -5.09 10.60  
SINCE JAN 1 11.60 18.24 -6.64 27.91  
 
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 18 17 1 20  
MONTH TO DATE 468 443 25 523  
SINCE MAR 1 1380 1316 64 1424  
SINCE JAN 1 2181 2063 118 2313    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 67  
AVERAGE 75  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 1990  
MINIMUM TEMPERATURE (F) 76 67 1929  
 
SUNRISE AND SUNSET  
MAY 28 2021...........SUNRISE 5:47 AM AST SUNSET 6:56 PM AST  
MAY 29 2021...........SUNRISE 5:47 AM AST SUNSET 6:56 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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