700  
CDUS41 KBOX 100525  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
125 AM EDT SUN OCT 10 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 9 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 66 1110 AM 87 2011 65 1 60  
MINIMUM 61 1159 PM 32 1873 50 11 42  
AVERAGE 64 57 7 51  
 
PRECIPITATION (IN)  
YESTERDAY T 2.06 1906 0.13 -0.13 0.00  
MONTH TO DATE 1.51 1.15 0.36 0.04  
SINCE SEP 1 8.98 4.71 4.27 1.01  
SINCE JAN 1 44.94 32.75 12.19 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 1 8 -7 14  
MONTH TO DATE 23 63 -40 58  
SINCE SEP 1 35 134 -99 128  
SINCE JUL 1 44 143 -99 130  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 6 -6 2  
SINCE SEP 1 156 97 59 96  
SINCE JAN 1 1132 797 335 923    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 13.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 1200 AM  
LOWEST 56 200 PM  
AVERAGE 68  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 87 1939  
MINIMUM TEMPERATURE (F) 49 32 1979  
 
SUNRISE AND SUNSET  
OCTOBER 10 2021.......SUNRISE 651 AM EDT SUNSET 610 PM EDT  
OCTOBER 11 2021.......SUNRISE 653 AM EDT SUNSET 608 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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