504  
CDUS41 KBOX 300530  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1230 AM EST SUN DEC 30 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 29 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 54 802 AM 73 1984 37 17 14  
MINIMUM 32 1159 PM -17 1933 24 8 2  
AVERAGE 43 31 12 8  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.32 2013 0.11 -0.11 0.00  
MONTH TO DATE 2.31 3.57 -1.26 2.48  
SINCE DEC 1 2.31 3.57 -1.26 2.48  
SINCE JAN 1 52.91 43.56 9.35 43.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 11.3 1976 0.4 -0.4 0.0  
MONTH TO DATE 0.1 8.2 -8.1 9.1  
SINCE DEC 1 0.1 8.2 -8.1 9.1  
SINCE JUL 1 0.2 9.5 -9.3 9.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 34 -12 57  
MONTH TO DATE 792 868 -76 948  
SINCE DEC 1 792 868 -76 948  
SINCE JUL 1 1816 1923 -107 1775  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1132 747 385 880    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 13.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 300 AM  
LOWEST 46 200 PM  
AVERAGE 71  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 63 1984  
MINIMUM TEMPERATURE (F) 24 -15 1933  
 
 
SUNRISE AND SUNSET  
DECEMBER 30 2018......SUNRISE 713 AM EST SUNSET 420 PM EST  
DECEMBER 31 2018......SUNRISE 713 AM EST SUNSET 421 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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