445  
CDUS41 KBOX 270537  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
137 AM EDT MON SEP 27 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 26 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 77 205 PM 95 1881 69 8 75  
MINIMUM 61 1159 PM 34 1879 55 6 58  
AVERAGE 69 62 7 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.55 2.12 1918 0.12 0.43 0.00  
MONTH TO DATE 6.75 3.04 3.71 0.46  
SINCE SEP 1 6.75 3.04 3.71 0.46  
SINCE JAN 1 42.71 31.08 11.63 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 4 -4 0  
MONTH TO DATE 0 50 -50 70  
SINCE SEP 1 0 50 -50 70  
SINCE JUL 1 9 59 -50 72  
 
COOLING  
YESTERDAY 4 1 3 2  
MONTH TO DATE 154 87 67 75  
SINCE SEP 1 154 87 67 75  
SINCE JAN 1 1130 787 343 902    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 10.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1200 AM  
LOWEST 32 400 PM  
AVERAGE 60  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 86 1933  
1998  
2017  
MINIMUM TEMPERATURE (F) 54 37 1947  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2021.....SUNRISE 637 AM EDT SUNSET 632 PM EDT  
SEPTEMBER 28 2021.....SUNRISE 638 AM EDT SUNSET 630 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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