498  
CDUS41 KBOX 222124  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
524 PM EDT MON SEP 22 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 22 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 324 PM 94 1895 71 -3 66  
MINIMUM 54 607 AM 35 1904 56 -2 57  
AVERAGE 61 64 -3 62  
 
PRECIPITATION (IN)  
TODAY 0.00 1.88 1998 0.13 -0.13 0.01  
MONTH TO DATE 1.55 2.54 -0.99 0.97  
SINCE SEP 1 1.55 2.54 -0.99 0.97  
SINCE JAN 1 26.50 30.58 -4.08 35.11  
 
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 0.0  
 
DEGREE DAYS  
HEATING  
TODAY 4 3 1 3  
MONTH TO DATE 33 34 -1 13  
SINCE SEP 1 33 34 -1 13  
SINCE JUL 1 40 43 -3 15  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 45 80 -35 61  
SINCE SEP 1 45 80 -35 61  
SINCE JAN 1 802 780 22 871    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 500 AM  
LOWEST 68 100 PM  
AVERAGE 77  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 96 1895  
MINIMUM TEMPERATURE (F) 56 35 1875  
1904  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2025.....SUNRISE 632 AM EDT SUNSET 641 PM EDT  
SEPTEMBER 23 2025.....SUNRISE 633 AM EDT SUNSET 639 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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