781  
CDUS41 KBOX 090856  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
356 AM EST THU DEC 09 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 8 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 37 140 PM 65 1927 44 -7 31  
MINIMUM 28 1159 PM -4 1902 31 -3 26  
AVERAGE 33 38 -5 29  
 
PRECIPITATION (IN)  
YESTERDAY T 1.33 1969 0.14 -0.14 0.00  
MONTH TO DATE 0.27 1.17 -0.90 2.15  
SINCE DEC 1 0.27 1.17 -0.90 2.15  
SINCE JAN 1 50.15 40.46 9.69 34.02  
 
SNOWFALL (IN)  
YESTERDAY 0.3 1.7 1922 0.3 0.0 0.0  
MONTH TO DATE 0.3 1.6 -1.3 0.3  
SINCE DEC 1 0.3 1.6 -1.3 0.3  
SINCE JUL 1 0.3 2.5 -2.2 4.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 27 5 36  
MONTH TO DATE 190 210 -20 204  
SINCE DEC 1 190 210 -20 204  
SINCE JUL 1 978 1224 -246 1091  
 
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 9 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 900 PM  
LOWEST 47 1000 AM  
AVERAGE 70  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 70 1966  
MINIMUM TEMPERATURE (F) 31 -8 1902  
 
SUNRISE AND SUNSET  
DECEMBER 9 2021......SUNRISE 702 AM EST SUNSET 411 PM EST  
DECEMBER 10 2021......SUNRISE 703 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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