447  
CDCA42 TJSJ 190428  
CLIISX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1228 AM AST TUE DEC 19 2023  
   
...............................
 
 
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR DECEMBER 18 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1951 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 2:54 PM 88 1998 85 2 86  
2019  
MINIMUM 77 11:01 PM 64 1996 72 5 74  
AVERAGE 82 79 3 80  
 
PRECIPITATION (IN)  
YESTERDAY MM 0.81 2001 0.10 MM 0.00  
MONTH TO DATE MM 2.14 MM 0.33  
SINCE DEC 1 MM 2.14 MM 0.33  
SINCE JAN 1 MM 35.90 MM 37.04  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 14 3 15  
MONTH TO DATE 319 253 66 239  
SINCE DEC 1 319 253 66 239  
SINCE JAN 1 6334 5574 760 5957    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 14.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 59  
AVERAGE 69  
   
......................................................
 
 
THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 2019  
MINIMUM TEMPERATURE (F) 72 65 2008  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 6:44 AM AST SUNSET 5:48 PM AST  
DECEMBER 20 2023......SUNRISE 6:45 AM AST SUNSET 5:49 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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