939  
CDCA42 TJSJ 181941  
CLIISX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
341 PM AST MON MAY 18 2026  
   
...............................  
 
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR MAY 18 2026...  
VALID TODAY AS OF 0300 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1951 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 88 11:58 AM 91 1961 87 1 87  
MINIMUM 78 6:14 AM 68 1979 76 2 76  
AVERAGE 83 81 2 82  
 
PRECIPITATION (IN)  
TODAY T 1.60 2010 0.12 -0.12 MM  
MONTH TO DATE 0.68 2.33 -1.65 T  
SINCE MAR 1 3.89 6.17 -2.28 T  
SINCE JAN 1 3.89 9.46 -5.57 T  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 18 16 2 17  
MONTH TO DATE 303 288 15 298  
SINCE MAR 1 1189 1140 49 1202  
SINCE JAN 1 1997 1898 99 1993    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 15.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 55  
AVERAGE 69  
   
......................................................  
 
THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 90 1999  
MINIMUM TEMPERATURE (F) 76 66 1979  
 
SUNRISE AND SUNSET  
MAY 18 2026...........SUNRISE 5:46 AM AST SUNSET 6:46 PM AST  
MAY 19 2026...........SUNRISE 5:46 AM AST SUNSET 6:46 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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