170  
CDCA42 TJSJ 040433  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1233 AM AST MON JAN 04 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JANUARY 3 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 83 2:22 PM 88 2018 83 0 83  
MINIMUM 73 2:55 AM 64 1919 72 1 75  
AVERAGE 78 78 0 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.52 1934 0.15 -0.15 0.88  
MONTH TO DATE 0.01 0.45 -0.44 0.99  
SINCE DEC 1 4.69 5.47 -0.78 6.77  
SINCE JAN 1 0.01 0.45 -0.44 0.99  
 
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 13 13 0 14  
MONTH TO DATE 39 39 0 47  
SINCE DEC 1 480 462 18 566  
SINCE JAN 1 39 39 0 47    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 11.0  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 56  
AVERAGE 69  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 88 2018  
MINIMUM TEMPERATURE (F) 72 63 1965  
 
SUNRISE AND SUNSET  
JANUARY 4 2021.......SUNRISE 6:57 AM AST SUNSET 6:01 PM AST  
JANUARY 5 2021.......SUNRISE 6:57 AM AST SUNSET 6:02 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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