676  
CDUS41 KBOX 042151  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
451 PM EST SAT DEC 04 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 4 2021
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 42 138 PM 70 1982 46 -4 58  
MINIMUM 28 436 AM 2 1940 32 -4 40  
AVERAGE 35 39 -4 49  
 
PRECIPITATION (IN)  
TODAY 0.00 2.15 1968 0.15 -0.15 0.02  
MONTH TO DATE 0.02 0.58 -0.56 0.43  
SINCE DEC 1 0.02 0.58 -0.56 0.43  
SINCE JAN 1 49.90 39.87 10.03 32.30  
 
SNOWFALL (IN)  
TODAY 0.0 6.0 1901 0.2 -0.2 0.0  
MONTH TO DATE 0.0 0.7 -0.7 0.0  
SINCE DEC 1 0.0 0.7 -0.7 0.0  
SINCE JUL 1 T 1.6 -1.6 4.3  
 
DEGREE DAYS  
HEATING  
TODAY 30 26 4 16  
MONTH TO DATE 73 103 -30 77  
SINCE DEC 1 73 103 -30 77  
SINCE JUL 1 861 1117 -256 964  
 
COOLING  
TODAY 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)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 800 AM  
LOWEST 43 300 AM  
AVERAGE 51  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 66 2001  
MINIMUM TEMPERATURE (F) 32 4 1926  
 
SUNRISE AND SUNSET  
DECEMBER 4 2021......SUNRISE 657 AM EST SUNSET 412 PM EST  
DECEMBER 5 2021......SUNRISE 658 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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