513  
CDUS41 KBOX 070526  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1226 AM EST TUE DEC 07 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 6 2021
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 62 841 PM 72 2001 45 17 37  
MINIMUM 42 205 AM 8 1935 32 10 29  
AVERAGE 52 38 14 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.25 2.91 1937 0.15 0.10 T  
MONTH TO DATE 0.27 0.88 -0.61 2.15  
SINCE DEC 1 0.27 0.88 -0.61 2.15  
SINCE JAN 1 50.15 40.17 9.98 34.02  
 
SNOWFALL (IN)  
YESTERDAY MM 11.9 1981 0.2 MM T  
2003  
MONTH TO DATE 0.0 1.1 -1.1 0.3  
SINCE DEC 1 0.0 1.1 -1.1 0.3  
SINCE JUL 1 T 2.0 -2.0 4.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 27 -14 32  
MONTH TO DATE 133 156 -23 134  
SINCE DEC 1 133 156 -23 134  
SINCE JUL 1 921 1170 -249 1021  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1146 800 346 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 16.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1000 AM  
LOWEST 59 1200 AM  
AVERAGE 78  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 76 1998  
MINIMUM TEMPERATURE (F) 32 4 1906  
 
SUNRISE AND SUNSET  
DECEMBER 7 2021......SUNRISE 700 AM EST SUNSET 411 PM EST  
DECEMBER 8 2021......SUNRISE 701 AM EST SUNSET 411 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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