808  
CDUS41 KBOX 201442  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
942 AM EST WED DEC 20 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 19 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 48 1223 PM 64 1899 41 7 42  
MINIMUM 35 1159 PM -10 1875 28 7 31  
AVERAGE 42 35 7 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.35 1986 0.15 -0.15 T  
MONTH TO DATE 5.28 2.73 2.55 2.60  
SINCE DEC 1 5.28 2.73 2.55 2.60  
SINCE JAN 1 48.94 42.02 6.92 30.10  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.0 1945 0.3 -0.3 T  
MONTH TO DATE 0.2 4.6 -4.4 1.0  
SINCE DEC 1 0.2 4.6 -4.4 1.0  
SINCE JUL 1 0.2 5.5 -5.3 1.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 23 30 -7 28  
MONTH TO DATE 432 528 -96 488  
SINCE DEC 1 432 528 -96 488  
SINCE JUL 1 1336 1542 -206 1285  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 860 800 60 1033    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 11.7  
 
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 85 200 AM  
LOWEST 55 500 PM  
AVERAGE 70  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 63 1957  
MINIMUM TEMPERATURE (F) 28 -11 1875  
1942  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 709 AM EST SUNSET 414 PM EST  
DECEMBER 21 2023......SUNRISE 710 AM EST SUNSET 414 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