265  
CDUS41 KBOX 110528  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
128 AM EDT SAT SEP 11 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 10 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 79 1241 PM 95 1931 75 4 82  
MINIMUM 63 1159 PM 41 1883 60 3 68  
AVERAGE 71 68 3 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 4.71 1999 0.11 0.08 0.25  
MONTH TO DATE 5.43 1.06 4.37 0.46  
SINCE SEP 1 5.43 1.06 4.37 0.46  
SINCE JAN 1 41.39 29.10 12.29 22.18  
 
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 0 1 -1 0  
MONTH TO DATE 0 8 -8 0  
SINCE SEP 1 0 8 -8 0  
SINCE JUL 1 9 17 -8 2  
 
COOLING  
YESTERDAY 6 4 2 10  
MONTH TO DATE 65 48 17 60  
SINCE SEP 1 65 48 17 60  
SINCE JAN 1 1041 748 293 887    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 1200 AM  
LOWEST 46 400 PM  
AVERAGE 68  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 99 1983  
MINIMUM TEMPERATURE (F) 60 40 1917  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2021.....SUNRISE 620 AM EDT SUNSET 700 PM EDT  
SEPTEMBER 12 2021.....SUNRISE 621 AM EDT SUNSET 659 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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