267  
CDUS41 KBOX 220640  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
140 AM EST FRI DEC 22 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 21 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 36 156 PM 65 2018 41 -5 39  
MINIMUM 24 1159 PM -5 1942 28 -4 27  
AVERAGE 30 34 -4 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.91 1946 0.15 -0.15 0.00  
MONTH TO DATE 5.28 3.01 2.27 2.60  
SINCE DEC 1 5.28 3.01 2.27 2.60  
SINCE JAN 1 48.94 42.30 6.64 30.10  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.1 1975 0.4 -0.4 0.0  
MONTH TO DATE 0.2 5.3 -5.1 1.0  
SINCE DEC 1 0.2 5.3 -5.1 1.0  
SINCE JUL 1 0.2 6.2 -6.0 1.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 35 31 4 32  
MONTH TO DATE 495 589 -94 549  
SINCE DEC 1 495 589 -94 549  
SINCE JUL 1 1399 1603 -204 1346  
 
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 12 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 11.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 100 AM  
LOWEST 33 300 PM  
AVERAGE 54  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 62 1990  
MINIMUM TEMPERATURE (F) 28 1 1879  
1883  
 
SUNRISE AND SUNSET  
DECEMBER 22 2023......SUNRISE 710 AM EST SUNSET 415 PM EST  
DECEMBER 23 2023......SUNRISE 711 AM EST SUNSET 415 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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