339  
CDUS41 KBOX 180539  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1239 AM EST FRI JAN 18 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JANUARY 17 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 33 1223 AM 59 1913 35 -2 34  
MINIMUM 18 827 AM -4 1907 22 -4 31  
AVERAGE 26 29 -3 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.25 1909 0.11 -0.11 0.21  
MONTH TO DATE 1.08 1.88 -0.80 3.42  
SINCE DEC 1 3.80 5.66 -1.86 5.91  
SINCE JAN 1 1.08 1.88 -0.80 3.42  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.1 1956 0.4 -0.4 1.7  
MONTH TO DATE T 7.3 -7.3 15.4  
SINCE DEC 1 0.1 16.3 -16.2 24.6  
SINCE JUL 1 0.2 17.6 -17.4 24.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 39 36 3 32  
MONTH TO DATE 546 608 -62 685  
SINCE DEC 1 1400 1547 -147 1742  
SINCE JUL 1 2424 2602 -178 2569  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 50 900 PM  
LOWEST 19 200 PM  
AVERAGE 35  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 63 1990  
MINIMUM TEMPERATURE (F) 22 -3 1974  
 
 
SUNRISE AND SUNSET  
JANUARY 18 2019.......SUNRISE 709 AM EST SUNSET 440 PM EST  
JANUARY 19 2019.......SUNRISE 709 AM EST SUNSET 441 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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