581  
CDUS41 KBOX 222205  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
455 PM EST SAT DEC 22 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 22 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 56 1111 AM 62 1990 39 17 38  
MINIMUM 43 359 PM 1 1883 26 17 23  
1879  
AVERAGE 50 33 17 31  
 
PRECIPITATION (IN)  
TODAY 0.02 1.31 1969 0.11 -0.09 0.10  
MONTH TO DATE 1.98 2.76 -0.78 1.46  
SINCE DEC 1 1.98 2.76 -0.78 1.46  
SINCE JAN 1 52.58 42.75 9.83 42.42  
 
SNOWFALL (IN)  
TODAY MM 5.3 1975 0.3 MM 0.1  
MONTH TO DATE 0.1 5.6 -5.5 6.2  
SINCE DEC 1 0.1 5.6 -5.5 6.2  
SINCE JUL 1 0.2 6.9 -6.7 6.2  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 15 32 -17 34  
MONTH TO DATE 598 634 -36 650  
SINCE DEC 1 598 634 -36 650  
SINCE JUL 1 1622 1689 -67 1477  
 
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 26 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 15.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 AM  
LOWEST 49 300 PM  
AVERAGE 71  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 67 1990  
MINIMUM TEMPERATURE (F) 26 -12 1883  
 
 
SUNRISE AND SUNSET  
DECEMBER 22 2018......SUNRISE 710 AM EST SUNSET 415 PM EST  
DECEMBER 23 2018......SUNRISE 711 AM EST SUNSET 416 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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