153  
CDCA42 TJSJ 010453  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1253 AM AST TUE JUN 01 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 31 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 87 3:48 PM 93 2006 88 -1 90  
MINIMUM 75 3:56 AM 69 1959 77 -2 77  
AVERAGE 81 82 -1 84  
 
PRECIPITATION (IN)  
YESTERDAY 1.03 1.97 1970 0.18 0.85 0.00  
MONTH TO DATE 4.11 5.54 -1.43 1.69  
SINCE MAR 1 8.36 12.32 -3.96 10.91  
SINCE JAN 1 13.46 18.97 -5.51 28.22  
 
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 16 18 -2 19  
MONTH TO DATE 536 513 23 600  
SINCE MAR 1 1448 1386 62 1501  
SINCE JAN 1 2249 2133 116 2390    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91  
LOWEST 65  
AVERAGE 78  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1993  
MINIMUM TEMPERATURE (F) 77 69 1957  
 
SUNRISE AND SUNSET  
JUNE 1 2021..........SUNRISE 5:47 AM AST SUNSET 6:57 PM AST  
JUNE 2 2021..........SUNRISE 5:47 AM AST SUNSET 6:57 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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