866  
CDCA42 TJSJ 290426  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1226 AM AST THU JUL 29 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 28 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 88 MM 92 1981 89 -1 90  
MINIMUM 77 MM 70 1899 78 -1 79  
AVERAGE 83 83 0 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.25 2.07 1942 0.20 0.05 0.10  
MONTH TO DATE 4.85 5.44 -0.59 4.36  
SINCE JUN 1 15.34 10.10 5.24 8.26  
SINCE JAN 1 28.80 29.07 -0.27 36.48  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 18 18 0 20  
MONTH TO DATE 525 504 21 553  
SINCE JUN 1 1043 1047 -4 1147  
SINCE JAN 1 3292 3180 112 3537    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 63  
AVERAGE 77  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 2013  
MINIMUM TEMPERATURE (F) 78 70 1919  
 
SUNRISE AND SUNSET  
JULY 29 2021..........SUNRISE 6:01 AM AST SUNSET 7:00 PM AST  
JULY 30 2021..........SUNRISE 6:01 AM AST SUNSET 6:59 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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