111  
CDUS41 KBOX 132157  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
447 PM EST THU DEC 13 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 13 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 35 136 PM 63 1984 42 -7 36  
MINIMUM 21 728 AM 4 1898 29 -8 22  
1893  
1890  
AVERAGE 28 36 -8 29  
 
PRECIPITATION (IN)  
TODAY 0.00 1.67 1873 0.12 -0.12 0.00  
MONTH TO DATE 0.75 1.68 -0.93 1.36  
SINCE DEC 1 0.75 1.68 -0.93 1.36  
SINCE JAN 1 51.35 41.67 9.68 42.32  
 
SNOWFALL (IN)  
TODAY 0.0 10.1 2007 0.3 -0.3 0.0  
MONTH TO DATE T 2.9 -2.9 6.1  
SINCE DEC 1 T 2.9 -2.9 6.1  
SINCE JUL 1 0.1 4.2 -4.1 6.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 37 29 8 36  
MONTH TO DATE 392 355 37 339  
SINCE DEC 1 392 355 37 339  
SINCE JUL 1 1416 1410 6 1166  
 
COOLING  
TODAY 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)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 7.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 62 800 AM  
LOWEST 40 1200 AM  
AVERAGE 51  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 66 1881  
MINIMUM TEMPERATURE (F) 29 0 1898  
1893  
 
 
SUNRISE AND SUNSET  
DECEMBER 13 2018......SUNRISE 705 AM EST SUNSET 412 PM EST  
DECEMBER 14 2018......SUNRISE 706 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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