361  
CDCA42 TJSJ 100426  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1226 AM AST TUE SEP 10 2024  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 9 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 90 11:46 AM 94 2013 89 1 90  
2021  
MINIMUM 79 3:59 PM 70 1988 78 1 79  
AVERAGE 85 83 2 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.27 1.82 1988 0.23 0.04 0.20  
MONTH TO DATE 1.35 2.12 -0.77 1.18  
SINCE SEP 1 1.35 2.12 -0.77 1.18  
SINCE JAN 1 51.56 38.06 13.50 31.81  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 20 18 2 20  
MONTH TO DATE 191 162 29 190  
SINCE SEP 1 191 162 29 190  
SINCE JAN 1 4642 3973 669 4277    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91  
LOWEST 75  
AVERAGE 83  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1998  
2017  
MINIMUM TEMPERATURE (F) 78 71 1961  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2024.....SUNRISE 6:11 AM AST SUNSET 6:30 PM AST  
SEPTEMBER 11 2024.....SUNRISE 6:11 AM AST SUNSET 6:29 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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