588  
CDCA42 TJSJ 280427  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1227 AM AST WED JUL 28 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 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 MM 93 1965 89 -1 89  
MINIMUM 78 MM 70 1899 78 0 79  
AVERAGE 83 83 0 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 2.19 1899 0.21 -0.14 0.29  
MONTH TO DATE 4.60 5.24 -0.64 4.26  
SINCE JUN 1 15.09 9.90 5.19 8.16  
SINCE JAN 1 28.55 28.87 -0.32 36.38  
 
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 18 18 0 19  
MONTH TO DATE 507 486 21 533  
SINCE JUN 1 1025 1029 -4 1127  
SINCE JAN 1 3274 3162 112 3517    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 67  
AVERAGE 78  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 1981  
MINIMUM TEMPERATURE (F) 78 70 1899  
 
SUNRISE AND SUNSET  
JULY 28 2021..........SUNRISE 6:01 AM AST SUNSET 7:00 PM AST  
JULY 29 2021..........SUNRISE 6:01 AM AST SUNSET 7:00 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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