440  
CDUS41 KBOX 150527  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1227 AM EST WED DEC 15 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 14 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 51 217 PM 66 1881 43 8 40  
MINIMUM 35 1144 PM 0 1893 30 5 34  
1898  
AVERAGE 43 36 7 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.99 2002 0.14 -0.14 0.06  
MONTH TO DATE 0.57 2.02 -1.45 2.71  
SINCE DEC 1 0.57 2.02 -1.45 2.71  
SINCE JAN 1 50.45 41.31 9.14 34.58  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.5 1995 0.2 -0.2 T  
MONTH TO DATE 0.3 3.1 -2.8 0.3  
SINCE DEC 1 0.3 3.1 -2.8 0.3  
SINCE JUL 1 0.3 4.0 -3.7 4.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 29 -7 28  
MONTH TO DATE 324 380 -56 356  
SINCE DEC 1 324 380 -56 356  
SINCE JUL 1 1112 1394 -282 1243  
 
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 10 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 51 700 AM  
LOWEST 22 300 PM  
AVERAGE 37  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 66 1975  
MINIMUM TEMPERATURE (F) 29 -2 1874  
 
SUNRISE AND SUNSET  
DECEMBER 15 2021......SUNRISE 706 AM EST SUNSET 412 PM EST  
DECEMBER 16 2021......SUNRISE 707 AM EST SUNSET 413 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MA Page
The Nexlab RI Page
The Nexlab NH Page
The Nexlab CT Page Main Text Page