257  
CDCA42 TJSJ 210550  
CLIISX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN, PR  
150 AM AST SAT APR 21 2018  
 
   
...............................
 
 
 
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR APRIL 20 2018...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1951 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 91 1973 86 MM 84  
MINIMUM MM MM 65 1954 75 MM 69  
AVERAGE MM 80 MM 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.59 1983 0.06 0.00 T  
MONTH TO DATE 0.49 1.26 -0.77 4.80  
SINCE MAR 1 1.53 2.82 -1.29 11.20  
SINCE JAN 1 3.90 6.61 -2.71 12.94  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 0 MM 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY MM 15 MM 12  
MONTH TO DATE 276 293 -17 283  
SINCE MAR 1 685 713 -28 719  
SINCE JAN 1 1415 1490 -75 1488    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 18.5  
 
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 61  
AVERAGE 78  
   
......................................................
 
 
 
THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 93 1961  
MINIMUM TEMPERATURE (F) 75 66 2011  
 
 
SUNRISE AND SUNSET  
APRIL 21 2018.........SUNRISE 559 AM AST SUNSET 637 PM AST  
APRIL 22 2018.........SUNRISE 558 AM AST SUNSET 637 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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