791  
CDCA42 TJSJ 172335  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
735 PM AST SAT JUL 17 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 17 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 88 2:38 PM 93 2001 89 -1 90  
MINIMUM 78 4:21 AM 72 1956 78 0 79  
AVERAGE 83 83 0 85  
 
PRECIPITATION (IN)  
TODAY 0.03 1.37 1977 0.21 -0.18 0.01  
MONTH TO DATE 1.71 3.13 -1.42 3.19  
SINCE JUN 1 12.20 7.79 4.41 7.09  
SINCE JAN 1 25.66 26.76 -1.10 35.31  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 18 18 0 20  
MONTH TO DATE 319 306 13 340  
SINCE JUN 1 837 849 -12 934  
SINCE JAN 1 3086 2982 104 3324    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 67  
AVERAGE 77  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 91 2005  
MINIMUM TEMPERATURE (F) 78 70 1960  
 
SUNRISE AND SUNSET  
JULY 17 2021..........SUNRISE 5:57 AM AST SUNSET 7:03 PM AST  
JULY 18 2021..........SUNRISE 5:57 AM AST SUNSET 7:03 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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