666  
CDUS41 KBOX 101124  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
624 AM EST FRI DEC 10 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 9 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 38 1258 PM 70 1966 44 -6 36  
MINIMUM 26 630 AM -8 1902 31 -5 24  
AVERAGE 32 38 -6 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.90 2014 0.15 -0.14 T  
MONTH TO DATE 0.28 1.32 -1.04 2.15  
SINCE DEC 1 0.28 1.32 -1.04 2.15  
SINCE JAN 1 50.16 40.61 9.55 34.02  
 
SNOWFALL (IN)  
YESTERDAY MM 8.6 2005 0.2 MM 0.0  
MONTH TO DATE 0.3 1.8 -1.5 0.3  
SINCE DEC 1 0.3 1.8 -1.5 0.3  
SINCE JUL 1 0.3 2.7 -2.4 4.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 33 28 5 35  
MONTH TO DATE 223 238 -15 239  
SINCE DEC 1 223 238 -15 239  
SINCE JUL 1 1011 1252 -241 1126  
 
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 8 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 300 AM  
LOWEST 42 100 PM  
AVERAGE 67  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 64 1897  
1907  
MINIMUM TEMPERATURE (F) 31 -1 1902  
 
SUNRISE AND SUNSET  
DECEMBER 10 2021......SUNRISE 703 AM EST SUNSET 411 PM EST  
DECEMBER 11 2021......SUNRISE 703 AM EST SUNSET 412 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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