412  
CDCA42 TJSJ 310428  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1228 AM AST SUN OCT 31 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR OCTOBER 30 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 92 2:03 PM 93 1915 88 4 89  
MINIMUM 78 4:26 AM 68 2001 76 2 78  
AVERAGE 85 82 3 84  
 
PRECIPITATION (IN)  
YESTERDAY T 2.61 1927 0.21 -0.21 0.01  
MONTH TO DATE 4.17 5.01 -0.84 6.45  
SINCE SEP 1 8.65 11.51 -2.86 11.48  
SINCE JAN 1 40.59 47.45 -6.86 57.51  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 20 17 3 19  
MONTH TO DATE 583 531 52 552  
SINCE SEP 1 1187 1081 106 1135  
SINCE JAN 1 5136 4892 244 5339    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 39  
AVERAGE 59  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 1973  
MINIMUM TEMPERATURE (F) 76 70 1963  
 
SUNRISE AND SUNSET  
OCTOBER 31 2021.......SUNRISE 6:23 AM AST SUNSET 5:52 PM AST  
NOVEMBER 1 2021......SUNRISE 6:24 AM AST SUNSET 5:51 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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