121  
CDUS41 KBOX 120538  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1237 AM EST TUE FEB 12 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR FEBRUARY 11 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 37 419 PM 62 1981 38 -1 49  
MINIMUM 26 1159 PM -4 1899 24 2 38  
AVERAGE 32 31 1 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.67 1955 0.12 -0.12 0.69  
MONTH TO DATE 0.65 1.20 -0.55 2.44  
SINCE DEC 1 6.99 8.34 -1.35 9.85  
SINCE JAN 1 4.27 4.56 -0.29 7.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.5 1933 0.4 -0.4 0.0  
MONTH TO DATE 0.0 4.2 -4.2 2.2  
SINCE DEC 1 2.2 26.1 -23.9 29.2  
SINCE JUL 1 2.3 27.4 -25.1 29.2  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 33 34 -1 21  
MONTH TO DATE 322 381 -59 363  
SINCE DEC 1 2230 2436 -206 2539  
SINCE JUL 1 3254 3491 -237 3366  
 
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 10 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 10.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 43 300 AM  
LOWEST 23 1100 PM  
AVERAGE 33  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 58 1999  
1984  
MINIMUM TEMPERATURE (F) 24 -11 1914  
 
 
SUNRISE AND SUNSET  
FEBRUARY 12 2019......SUNRISE 645 AM EST SUNSET 512 PM EST  
FEBRUARY 13 2019......SUNRISE 644 AM EST SUNSET 514 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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