397  
CDCA42 TJSJ 180759  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
359 AM AST FRI JUN 18 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JUNE 17 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 89 3:20 PM 94 2005 89 0 91  
MINIMUM 78 9:13 PM 70 1960 77 1 77  
AVERAGE 84 83 1 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.48 2.45 1960 0.16 0.32 0.19  
MONTH TO DATE 6.94 2.80 4.14 1.42  
SINCE JUN 1 6.94 2.80 4.14 1.42  
SINCE JAN 1 20.40 21.77 -1.37 29.64  
 
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 19 18 1 19  
MONTH TO DATE 288 306 -18 332  
SINCE JUN 1 288 306 -18 332  
SINCE JAN 1 2537 2439 98 2722    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 68  
AVERAGE 81  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 2005  
MINIMUM TEMPERATURE (F) 77 69 1909  
 
SUNRISE AND SUNSET  
JUNE 18 2021..........SUNRISE 5:48 AM AST SUNSET 7:02 PM AST  
JUNE 19 2021..........SUNRISE 5:48 AM AST SUNSET 7:03 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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