191  
CDUS41 KBOX 140807  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
407 AM EDT THU OCT 14 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 13 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 78 143 PM 87 1930 63 15 58  
MINIMUM 60 605 AM 30 1875 48 12 51  
AVERAGE 69 56 13 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.85 1895 0.13 -0.13 1.50  
MONTH TO DATE 1.51 1.66 -0.15 1.54  
SINCE SEP 1 8.98 5.22 3.76 2.51  
SINCE JAN 1 44.94 33.26 11.68 24.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1934 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 10  
MONTH TO DATE 24 100 -76 87  
SINCE SEP 1 36 171 -135 157  
SINCE JUL 1 45 180 -135 159  
 
COOLING  
YESTERDAY 4 0 4 0  
MONTH TO DATE 5 6 -1 3  
SINCE SEP 1 161 97 64 97  
SINCE JAN 1 1137 797 340 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 300 AM  
LOWEST 46 1100 AM  
AVERAGE 66  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 81 1923  
MINIMUM TEMPERATURE (F) 48 31 1875  
 
SUNRISE AND SUNSET  
OCTOBER 14 2021.......SUNRISE 656 AM EDT SUNSET 603 PM EDT  
OCTOBER 15 2021.......SUNRISE 657 AM EDT SUNSET 602 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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