024  
CDCA42 TJSJ 100428  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1228 AM AST SUN DEC 10 2023  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 9 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1898 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 1:08 PM 91 1981 85 3 84  
MINIMUM 79 11:29 PM 67 1958 74 5 73  
AVERAGE 84 79 5 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 2.80 1975 0.17 -0.15 0.04  
MONTH TO DATE 0.88 1.63 -0.75 0.73  
SINCE DEC 1 0.88 1.63 -0.75 0.73  
SINCE JAN 1 49.39 56.65 -7.26 68.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 19 14 5 14  
MONTH TO DATE 156 126 30 137  
SINCE DEC 1 156 126 30 137  
SINCE JAN 1 6055 5499 556 5601    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 12.8  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 61  
AVERAGE 70  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 91 1981  
MINIMUM TEMPERATURE (F) 74 65 1957  
 
SUNRISE AND SUNSET  
DECEMBER 10 2023......SUNRISE 6:45 AM AST SUNSET 5:48 PM AST  
DECEMBER 11 2023......SUNRISE 6:46 AM AST SUNSET 5:49 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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