144  
CDCA42 TJSJ 130421  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1221 AM AST THU MAY 13 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 12 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 87 3:03 PM 94 1998 87 0 92  
MINIMUM 76 4:53 AM 70 2000 76 0 76  
AVERAGE 82 81 1 84  
 
PRECIPITATION (IN)  
YESTERDAY T 1.66 1932 0.18 -0.18 0.05  
MONTH TO DATE 0.55 2.15 -1.60 0.17  
SINCE MAR 1 4.80 8.93 -4.13 9.39  
SINCE JAN 1 9.90 15.58 -5.68 26.70  
 
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 19  
MONTH TO DATE 195 192 3 227  
SINCE MAR 1 1107 1065 42 1128  
SINCE JAN 1 1908 1812 96 2017    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 12.5  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 61  
AVERAGE 74  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 1998  
MINIMUM TEMPERATURE (F) 76 68 1950  
 
SUNRISE AND SUNSET  
MAY 13 2021...........SUNRISE 5:51 AM AST SUNSET 6:50 PM AST  
MAY 14 2021...........SUNRISE 5:51 AM AST SUNSET 6:50 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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