084  
CDUS41 KBOX 162130  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
530 PM EDT THU SEP 16 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 16 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 75 107 AM 96 1939 73 2 73  
MINIMUM 66 151 PM 42 1984 58 8 51  
AVERAGE 71 66 5 62  
 
PRECIPITATION (IN)  
TODAY 0.31 5.63 1933 0.13 0.18 0.00  
MONTH TO DATE 5.80 1.77 4.03 0.46  
SINCE SEP 1 5.80 1.77 4.03 0.46  
SINCE JAN 1 41.76 29.81 11.95 22.18  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 2 -2 3  
MONTH TO DATE 0 18 -18 18  
SINCE SEP 1 0 18 -18 18  
SINCE JUL 1 9 27 -18 20  
 
COOLING  
TODAY 6 3 3 0  
MONTH TO DATE 108 67 41 62  
SINCE SEP 1 108 67 41 62  
SINCE JAN 1 1084 767 317 889    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 500 AM  
LOWEST 69 300 AM  
AVERAGE 78  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 1915  
MINIMUM TEMPERATURE (F) 58 44 2013  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2021.....SUNRISE 625 AM EDT SUNSET 652 PM EDT  
SEPTEMBER 17 2021.....SUNRISE 626 AM EDT SUNSET 650 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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