421  
CDUS41 KBOX 120537  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1237 AM EST SUN DEC 12 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 11 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 64 1112 PM 68 1911 43 21 51  
MINIMUM 35 1241 AM -2 1876 31 4 28  
AVERAGE 50 37 13 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.25 1.52 1936 0.14 0.11 0.00  
MONTH TO DATE 0.53 1.60 -1.07 2.15  
SINCE DEC 1 0.53 1.60 -1.07 2.15  
SINCE JAN 1 50.41 40.89 9.52 34.02  
 
SNOWFALL (IN)  
YESTERDAY MM 2.8 2019 0.2 MM 0.0  
MONTH TO DATE 0.3 2.3 -2.0 0.3  
SINCE DEC 1 0.3 2.3 -2.0 0.3  
SINCE JUL 1 0.3 3.2 -2.9 4.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 28 -13 25  
MONTH TO DATE 267 294 -27 289  
SINCE DEC 1 267 294 -27 289  
SINCE JUL 1 1055 1308 -253 1176  
 
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 SW (230)  
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1000 AM  
LOWEST 78 1100 PM  
AVERAGE 89  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 68 1911  
1979  
MINIMUM TEMPERATURE (F) 30 2 1988  
 
SUNRISE AND SUNSET  
DECEMBER 12 2021......SUNRISE 704 AM EST SUNSET 412 PM EST  
DECEMBER 13 2021......SUNRISE 705 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.  
 

 
 
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