687  
CDCA42 TJSJ 100427  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1227 AM AST MON MAY 10 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 9 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 3:37 PM 94 1983 87 1 92  
MINIMUM 76 5:57 AM 70 1989 75 1 79  
AVERAGE 82 81 1 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 2.74 1982 0.17 -0.12 0.00  
MONTH TO DATE 0.34 1.61 -1.27 0.11  
SINCE MAR 1 4.59 8.39 -3.80 9.33  
SINCE JAN 1 9.69 15.04 -5.35 26.64  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 16 1 21  
MONTH TO DATE 144 144 0 171  
SINCE MAR 1 1056 1017 39 1072  
SINCE JAN 1 1857 1764 93 1961    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 61  
AVERAGE 78  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 95 1980  
MINIMUM TEMPERATURE (F) 75 69 1986  
 
SUNRISE AND SUNSET  
MAY 10 2021...........SUNRISE 5:52 AM AST SUNSET 6:49 PM AST  
MAY 11 2021...........SUNRISE 5:52 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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