115  
CDUS41 KBOX 160600  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
200 AM EDT SAT OCT 16 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 15 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 69 520 PM 86 1897 62 7 72  
MINIMUM 60 502 AM 31 1876 48 12 48  
AVERAGE 65 55 10 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.23 1930 0.13 -0.13 0.00  
MONTH TO DATE 1.51 1.92 -0.41 1.54  
SINCE SEP 1 8.98 5.48 3.50 2.51  
SINCE JAN 1 44.94 33.52 11.42 24.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1972 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 10 -10 5  
MONTH TO DATE 24 120 -96 96  
SINCE SEP 1 36 191 -155 166  
SINCE JUL 1 45 200 -155 168  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 8 6 2 3  
SINCE SEP 1 164 97 67 97  
SINCE JAN 1 1140 797 343 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (140)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 600 AM  
LOWEST 81 500 PM  
AVERAGE 89  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 88 1897  
MINIMUM TEMPERATURE (F) 47 30 1876  
1883  
 
SUNRISE AND SUNSET  
OCTOBER 16 2021.......SUNRISE 658 AM EDT SUNSET 600 PM EDT  
OCTOBER 17 2021.......SUNRISE 700 AM EDT SUNSET 559 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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