438  
CDUS41 KBOX 272119  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
519 PM EDT MON SEP 27 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 27 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 76 337 PM 86 1933 69 7 77  
1998  
2017  
MINIMUM 58 601 AM 37 1947 54 4 63  
AVERAGE 67 62 5 70  
 
PRECIPITATION (IN)  
TODAY 0.00 2.37 1962 0.13 -0.13 0.00  
MONTH TO DATE 6.75 3.17 3.58 0.46  
SINCE SEP 1 6.75 3.17 3.58 0.46  
SINCE JAN 1 42.71 31.21 11.50 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 5 -5 0  
MONTH TO DATE 0 55 -55 70  
SINCE SEP 1 0 55 -55 70  
SINCE JUL 1 9 64 -55 72  
 
COOLING  
TODAY 2 1 1 5  
MONTH TO DATE 156 88 68 80  
SINCE SEP 1 156 88 68 80  
SINCE JAN 1 1132 788 344 907    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 600 AM  
LOWEST 43 1100 AM  
AVERAGE 57  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 90 1873  
1881  
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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