975  
CDUS41 KBOX 100557  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1247 AM EST THU JAN 10 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JANUARY 9 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 46 237 PM 64 1937 36 10 43  
MINIMUM 35 251 AM -4 1968 22 13 31  
AVERAGE 41 29 12 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.13 2.14 1884 0.11 0.02 0.00  
MONTH TO DATE 1.08 0.99 0.09 1.35  
SINCE DEC 1 3.80 4.77 -0.97 3.84  
SINCE JAN 1 1.08 0.99 0.09 1.35  
 
SNOWFALL (IN)  
YESTERDAY 0.0 9.0 1904 0.5 -0.5 0.0  
MONTH TO DATE T 3.8 -3.8 13.4  
SINCE DEC 1 0.1 12.8 -12.7 22.6  
SINCE JUL 1 0.2 14.1 -13.9 22.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 36 -12 28  
MONTH TO DATE 245 320 -75 424  
SINCE DEC 1 1099 1259 -160 1481  
SINCE JUL 1 2123 2314 -191 2308  
 
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 13 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 15.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 AM  
LOWEST 52 1000 PM  
AVERAGE 76  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 58 2016  
MINIMUM TEMPERATURE (F) 22 -3 2004  
 
 
SUNRISE AND SUNSET  
JANUARY 10 2019.......SUNRISE 713 AM EST SUNSET 431 PM EST  
JANUARY 11 2019.......SUNRISE 712 AM EST SUNSET 432 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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