204  
CDCA42 TJSJ 040429  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1229 AM AST SAT SEP 04 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 3 2021
 
 
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)  
YESTERDAY  
MAXIMUM 92 1:34 PM 93 1995 89 3 88  
MINIMUM 80 6:30 AM 71 1962 78 2 78  
AVERAGE 86 84 2 83  
 
PRECIPITATION (IN)  
YESTERDAY T 2.58 1923 0.24 -0.24 0.54  
MONTH TO DATE 0.25 0.71 -0.46 0.72  
SINCE SEP 1 0.25 0.71 -0.46 0.72  
SINCE JAN 1 32.18 36.65 -4.47 46.75  
 
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 21 18 3 18  
MONTH TO DATE 60 54 6 58  
SINCE SEP 1 60 54 6 58  
SINCE JAN 1 4009 3865 144 4262    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 64  
AVERAGE 73  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1974  
MINIMUM TEMPERATURE (F) 78 70 1959  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2021.....SUNRISE 6:10 AM AST SUNSET 6:35 PM AST  
SEPTEMBER 5 2021.....SUNRISE 6:10 AM AST SUNSET 6:35 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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