904  
CDUS41 KBOX 310540  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1240 AM EST FRI DEC 31 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 30 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 42 846 PM 63 1984 39 3 41  
MINIMUM 38 1053 AM -15 1933 26 12 24  
AVERAGE 40 32 8 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.08 1901 0.13 -0.07 0.00  
MONTH TO DATE 2.45 4.18 -1.73 4.57  
SINCE DEC 1 2.45 4.18 -1.73 4.57  
SINCE JAN 1 52.33 43.47 8.86 36.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.0 1993 0.4 -0.4 0.0  
MONTH TO DATE 0.4 8.6 -8.2 13.0  
SINCE DEC 1 0.4 8.6 -8.2 13.0  
SINCE JUL 1 0.4 9.5 -9.1 17.3  
 
DEGREE DAYS  
HEATING  
YESTERDAY 25 33 -8 32  
MONTH TO DATE 770 876 -106 868  
SINCE DEC 1 770 876 -106 868  
SINCE JUL 1 1558 1890 -332 1755  
 
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 3 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 PM  
LOWEST 70 1200 AM  
AVERAGE 85  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 65 1932  
MINIMUM TEMPERATURE (F) 25 -8 1917  
 
SUNRISE AND SUNSET  
DECEMBER 31 2021......SUNRISE 713 AM EST SUNSET 421 PM EST  
JANUARY 1 2022.......SUNRISE 713 AM EST SUNSET 422 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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