999  
CDCA42 TJSJ 160450  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1250 AM AST SUN MAY 16 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 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 91 3:17 PM 93 2017 87 4 90  
MINIMUM 75 4:36 AM 68 1902 76 -1 76  
AVERAGE 83 81 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.16 3.95 1995 0.18 -0.02 0.00  
MONTH TO DATE 0.82 2.69 -1.87 1.13  
SINCE MAR 1 5.07 9.47 -4.40 10.35  
SINCE JAN 1 10.17 16.12 -5.95 27.66  
 
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 18 16 2 18  
MONTH TO DATE 247 240 7 281  
SINCE MAR 1 1159 1113 46 1182  
SINCE JAN 1 1960 1860 100 2071    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 44  
AVERAGE 66  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 94 1903  
MINIMUM TEMPERATURE (F) 76 68 1961  
 
SUNRISE AND SUNSET  
MAY 16 2021...........SUNRISE 5:50 AM AST SUNSET 6:51 PM AST  
MAY 17 2021...........SUNRISE 5:50 AM AST SUNSET 6:51 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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