455  
CDCA42 TJSJ 160442  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1242 AM AST MON AUG 16 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 15 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 86 10:57 AM 94 1991 89 -3 90  
MINIMUM 76 3:20 PM 72 1952 78 -2 78  
AVERAGE 81 84 -3 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.60 9.67 1944 0.20 0.40 0.02  
MONTH TO DATE 2.22 2.84 -0.62 1.22  
SINCE JUN 1 18.02 13.52 4.50 15.54  
SINCE JAN 1 31.48 32.49 -1.01 43.76  
 
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 16 18 -2 19  
MONTH TO DATE 278 270 8 300  
SINCE JUN 1 1376 1376 0 1501  
SINCE JAN 1 3625 3509 116 3891    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90  
LOWEST 70  
AVERAGE 80  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 1992  
MINIMUM TEMPERATURE (F) 78 73 2005  
 
SUNRISE AND SUNSET  
AUGUST 16 2021........SUNRISE 6:06 AM AST SUNSET 6:50 PM AST  
AUGUST 17 2021........SUNRISE 6:06 AM AST SUNSET 6:49 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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