946  
CDUS41 KBOX 210529  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1229 AM EST SUN NOV 21 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR NOVEMBER 20 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 44 251 PM 74 1953 50 -6 64  
MINIMUM 33 700 AM 15 1894 37 -4 45  
AVERAGE 39 43 -4 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.85 1876 0.12 -0.12 0.00  
MONTH TO DATE 1.08 2.37 -1.29 1.24  
SINCE SEP 1 13.66 9.96 3.70 7.19  
SINCE JAN 1 49.62 38.00 11.62 28.91  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.0 1897 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.2 -0.2 T  
SINCE SEP 1 0.0 0.4 -0.4 4.3  
SINCE JUL 1 0.0 0.4 -0.4 4.3  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 22 4 10  
MONTH TO DATE 340 373 -33 308  
SINCE SEP 1 516 770 -254 693  
SINCE JUL 1 525 779 -254 695  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 170 100 70 97  
SINCE JAN 1 1146 800 346 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.4  
 
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 59 1100 PM  
LOWEST 41 200 PM  
AVERAGE 50  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 74 1931  
MINIMUM TEMPERATURE (F) 36 10 1879  
 
SUNRISE AND SUNSET  
NOVEMBER 21 2021......SUNRISE 643 AM EST SUNSET 417 PM EST  
NOVEMBER 22 2021......SUNRISE 644 AM EST SUNSET 417 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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