161  
CDUS41 KBOX 210536  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1236 AM EST MON JAN 21 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JANUARY 20 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 37 703 AM 60 1951 35 2 47  
MINIMUM 10 1159 PM -3 1946 22 -12 29  
1901  
AVERAGE 24 29 -5 38  
 
PRECIPITATION (IN)  
YESTERDAY 1.20 2.05 1978 0.10 1.10 0.00  
MONTH TO DATE 2.41 2.19 0.22 3.42  
SINCE DEC 1 5.13 5.97 -0.84 5.91  
SINCE JAN 1 2.41 2.19 0.22 3.42  
 
SNOWFALL (IN)  
YESTERDAY 1.1 21.0 1978 0.4 0.7 0.0  
MONTH TO DATE 1.6 8.5 -6.9 15.4  
SINCE DEC 1 1.7 17.5 -15.8 24.6  
SINCE JUL 1 1.8 18.8 -17.0 24.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 36 5 27  
MONTH TO DATE 649 716 -67 786  
SINCE DEC 1 1503 1655 -152 1843  
SINCE JUL 1 2527 2710 -183 2670  
 
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 N (10)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 17.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
FREEZING RAIN  
LT FREEZING RAIN  
SNOW  
LIGHT SNOW  
SLEET  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 1200 AM  
LOWEST 58 1100 PM  
AVERAGE 75  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 68 1906  
MINIMUM TEMPERATURE (F) 22 0 1888  
1879  
 
 
SUNRISE AND SUNSET  
JANUARY 21 2019.......SUNRISE 707 AM EST SUNSET 444 PM EST  
JANUARY 22 2019.......SUNRISE 707 AM EST SUNSET 445 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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