945  
CDUS41 KBOX 040602  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1250 AM EST TUE DEC 4 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 3 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 58 MM 69 2009 46 12 44  
MINIMUM 44 MM 0 1890 33 11 34  
AVERAGE 51 39 12 39  
 
PRECIPITATION (IN)  
YESTERDAY T 1.82 1986 0.13 -0.13 0.00  
MONTH TO DATE 0.75 0.39 0.36 0.09  
SINCE DEC 1 0.75 0.39 0.36 0.09  
SINCE JAN 1 51.35 40.38 10.97 41.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.0 1893 0.2 -0.2 0.0  
MONTH TO DATE 0.0 0.5 -0.5 0.0  
SINCE DEC 1 0.0 0.5 -0.5 0.0  
SINCE JUL 1 0.1 1.8 -1.7 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 26 -12 26  
MONTH TO DATE 58 77 -19 72  
SINCE DEC 1 58 77 -19 72  
SINCE JUL 1 1082 1132 -50 899  
 
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 10 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 10.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 44 500 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 70 1982  
MINIMUM TEMPERATURE (F) 32 2 1940  
 
 
SUNRISE AND SUNSET  
DECEMBER 4 2018......SUNRISE 657 AM EST SUNSET 412 PM EST  
DECEMBER 5 2018......SUNRISE 658 AM EST SUNSET 412 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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