662  
CDUS41 KBOX 160628  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
128 AM EST SAT DEC 16 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 15 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 56 334 PM 66 1975 42 14 44  
MINIMUM 32 319 AM -2 1874 29 3 32  
AVERAGE 44 36 8 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.51 1981 0.14 -0.14 0.03  
MONTH TO DATE 3.23 2.16 1.07 1.17  
SINCE DEC 1 3.23 2.16 1.07 1.17  
SINCE JAN 1 46.89 41.45 5.44 28.67  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.1 1916 0.3 -0.3 0.0  
MONTH TO DATE 0.2 3.4 -3.2 1.0  
SINCE DEC 1 0.2 3.4 -3.2 1.0  
SINCE JUL 1 0.2 4.3 -4.1 1.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 29 -8 27  
MONTH TO DATE 362 409 -47 385  
SINCE DEC 1 362 409 -47 385  
SINCE JUL 1 1266 1423 -157 1182  
 
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 10 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 63 200 AM  
LOWEST 46 200 PM  
AVERAGE 55  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 42 64 1971  
MINIMUM TEMPERATURE (F) 29 1 1876  
1883  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 707 AM EST SUNSET 412 PM EST  
DECEMBER 17 2023......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.  
 

 
 
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