696  
CDUS41 KBOX 150558  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
158 AM EDT WED SEP 15 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 14 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 73 121 PM 92 1915 74 -1 77  
1931  
MINIMUM 63 522 AM 40 1884 59 4 54  
AVERAGE 68 66 2 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.46 1944 0.12 -0.12 0.00  
MONTH TO DATE 5.49 1.52 3.97 0.46  
SINCE SEP 1 5.49 1.52 3.97 0.46  
SINCE JAN 1 41.45 29.56 11.89 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 2 -2 0  
MONTH TO DATE 0 14 -14 5  
SINCE SEP 1 0 14 -14 5  
SINCE JUL 1 9 23 -14 7  
 
COOLING  
YESTERDAY 3 3 0 1  
MONTH TO DATE 90 61 29 62  
SINCE SEP 1 90 61 29 62  
SINCE JAN 1 1066 761 305 889    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 1100 PM  
LOWEST 51 100 PM  
AVERAGE 65  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 94 1915  
MINIMUM TEMPERATURE (F) 59 41 1913  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2021.....SUNRISE 624 AM EDT SUNSET 653 PM EDT  
SEPTEMBER 16 2021.....SUNRISE 625 AM EDT SUNSET 652 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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