151  
CDUS41 KBOX 010532  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
132 AM EDT FRI OCT 01 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 30 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 64 309 PM 87 1986 68 -4 74  
MINIMUM 53 1159 PM 36 1888 53 0 58  
AVERAGE 59 60 -1 66  
 
PRECIPITATION (IN)  
YESTERDAY T 2.46 2015 0.13 -0.13 0.46  
MONTH TO DATE 7.47 3.56 3.91 0.97  
SINCE SEP 1 7.47 3.56 3.91 0.97  
SINCE JAN 1 43.43 31.60 11.83 22.69  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0  
2001  
2002  
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 6 6 0 0  
MONTH TO DATE 12 71 -59 70  
SINCE SEP 1 12 71 -59 70  
SINCE JUL 1 21 80 -59 72  
 
COOLING  
YESTERDAY 0 1 -1 1  
MONTH TO DATE 156 91 65 94  
SINCE SEP 1 156 91 65 94  
SINCE JAN 1 1132 791 341 921    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 200 AM  
LOWEST 44 300 PM  
AVERAGE 57  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 90 1881  
MINIMUM TEMPERATURE (F) 53 36 1992  
 
SUNRISE AND SUNSET  
OCTOBER 1 2021.......SUNRISE 641 AM EDT SUNSET 625 PM EDT  
OCTOBER 2 2021.......SUNRISE 643 AM EDT SUNSET 623 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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