133  
CDUS41 KBOX 130840  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
440 AM EDT WED OCT 13 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 12 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 75 102 PM 90 1954 63 12 54  
MINIMUM 57 441 AM 31 1876 49 8 50  
AVERAGE 66 56 10 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.93 1878 0.13 -0.13 T  
MONTH TO DATE 1.51 1.53 -0.02 0.04  
SINCE SEP 1 8.98 5.09 3.89 1.01  
SINCE JAN 1 44.94 33.13 11.81 22.73  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2007 0.0 0.0 0.0  
2008  
2009  
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 9 -9 13  
MONTH TO DATE 24 90 -66 77  
SINCE SEP 1 36 161 -125 147  
SINCE JUL 1 45 170 -125 149  
 
COOLING  
YESTERDAY 1 0 1 0  
MONTH TO DATE 1 6 -5 3  
SINCE SEP 1 157 97 60 97  
SINCE JAN 1 1133 797 336 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 53 100 PM  
AVERAGE 73  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 87 1930  
MINIMUM TEMPERATURE (F) 48 30 1875  
 
SUNRISE AND SUNSET  
OCTOBER 13 2021.......SUNRISE 655 AM EDT SUNSET 605 PM EDT  
OCTOBER 14 2021.......SUNRISE 656 AM EDT SUNSET 603 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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