852  
CDCA42 TJSJ 102135  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
535 PM AST FRI SEP 10 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 10 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 93 12:28 PM 94 1998 89 4 88  
2017  
MINIMUM 80 6:07 AM 71 1961 78 2 79  
AVERAGE 87 83 4 84  
 
PRECIPITATION (IN)  
TODAY T 8.20 1996 0.23 -0.23 T  
MONTH TO DATE 0.45 2.35 -1.90 2.57  
SINCE SEP 1 0.45 2.35 -1.90 2.57  
SINCE JAN 1 32.38 38.29 -5.91 48.60  
 
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 19  
MONTH TO DATE 213 180 33 189  
SINCE SEP 1 213 180 33 189  
SINCE JAN 1 4162 3991 171 4393    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 6.5  
 
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 56  
AVERAGE 69  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 94 1994  
MINIMUM TEMPERATURE (F) 78 71 1909  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2021.....SUNRISE 6:11 AM AST SUNSET 6:30 PM AST  
SEPTEMBER 11 2021.....SUNRISE 6:11 AM AST SUNSET 6:30 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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