298  
CDUS41 KBOX 290540  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
140 AM EDT WED SEP 29 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 28 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 71 829 AM 90 1873 69 2 81  
1881  
MINIMUM 58 1159 PM 37 1947 54 4 63  
AVERAGE 65 61 4 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.72 1.88 2004 0.13 0.59 0.05  
MONTH TO DATE 7.47 3.30 4.17 0.51  
SINCE SEP 1 7.47 3.30 4.17 0.51  
SINCE JAN 1 43.43 31.34 12.09 22.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0  
2001  
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 5 -5 0  
MONTH TO DATE 0 60 -60 70  
SINCE SEP 1 0 60 -60 70  
SINCE JUL 1 9 69 -60 72  
 
COOLING  
YESTERDAY 0 1 -1 7  
MONTH TO DATE 156 89 67 87  
SINCE SEP 1 156 89 67 87  
SINCE JAN 1 1132 789 343 914    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 700 PM  
LOWEST 61 1200 AM  
AVERAGE 74  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 88 1952  
MINIMUM TEMPERATURE (F) 53 34 1914  
 
SUNRISE AND SUNSET  
SEPTEMBER 29 2021.....SUNRISE 639 AM EDT SUNSET 629 PM EDT  
SEPTEMBER 30 2021.....SUNRISE 640 AM EDT SUNSET 627 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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