647  
CDCA42 TJSJ 232127  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
527 PM AST THU SEP 23 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 23 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 94 1:40 PM 95 2020 89 5 95  
MINIMUM 80 6:26 AM 71 1956 77 3 77  
AVERAGE 87 83 4 86  
 
PRECIPITATION (IN)  
TODAY T 2.00 1924 0.20 -0.20 0.25  
MONTH TO DATE 4.39 5.14 -0.75 3.24  
SINCE SEP 1 4.39 5.14 -0.75 3.24  
SINCE JAN 1 36.32 41.08 -4.76 49.27  
 
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 22 18 4 21  
MONTH TO DATE 464 414 50 450  
SINCE SEP 1 464 414 50 450  
SINCE JAN 1 4413 4225 188 4654    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 51  
AVERAGE 67  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 2004  
2017  
MINIMUM TEMPERATURE (F) 77 70 1956  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2021.....SUNRISE 6:13 AM AST SUNSET 6:19 PM AST  
SEPTEMBER 24 2021.....SUNRISE 6:13 AM AST SUNSET 6:18 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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