348  
CDCA42 TJSJ 012336  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
736 PM AST WED SEP 01 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 1 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 91 MM 97 1981 89 2 90  
MINIMUM 78 6:16 PM 70 1942 78 0 80  
AVERAGE 85 84 1 85  
 
PRECIPITATION (IN)  
TODAY 0.25 3.19 1899 0.24 0.01 0.09  
MONTH TO DATE 0.25 0.24 0.01 0.09  
SINCE SEP 1 0.25 0.24 0.01 0.09  
SINCE JAN 1 32.18 36.18 -4.00 46.12  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 20 18 2 20  
MONTH TO DATE 20 18 2 20  
SINCE SEP 1 20 18 2 20  
SINCE JAN 1 3969 3829 140 4224    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 54  
AVERAGE 68  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 2010  
2019  
MINIMUM TEMPERATURE (F) 78 72 1962  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2021.....SUNRISE 6:09 AM AST SUNSET 6:38 PM AST  
SEPTEMBER 2 2021.....SUNRISE 6:10 AM AST SUNSET 6:37 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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