517   
CDUS41 KBOX 302131  
CLIBOS  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
531 PM EDT TUE SEP 30 2025  
   
...............................  
  
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 30 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         72   1107 AM  87    1986  68      4       68         
  MINIMUM         62    202 AM  36    1888  53      9       54         
  AVERAGE         67                        60      7       61       
  
PRECIPITATION (IN)                                                      
  TODAY            0.00          2.46 2015   0.13  -0.13     0.00       
  MONTH TO DATE    3.09                      3.56  -0.47     1.33       
  SINCE SEP 1      3.09                      3.56  -0.47     1.33       
  SINCE JAN 1     28.04                     31.60  -3.56    35.47       
  
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            0                         6     -6        4          
  MONTH TO DATE   32                        71    -39       35          
  SINCE SEP 1     32                        71    -39       35          
  SINCE JUL 1     39                        80    -41       37          
  
 COOLING                                                                
  TODAY            2                         1      1        0          
  MONTH TO DATE   87                        91     -4       67          
  SINCE SEP 1     87                        91     -4       67          
  SINCE JAN 1    844                       791     53      877           
...............................................................  
  
WIND (MPH)                                                              
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (70)          
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (60)          
  AVERAGE WIND SPEED     7.7                                          
  
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    75           400 PM                                        
 LOWEST     51           800 AM                                        
 AVERAGE    63                                                          
   
......................................................  
  
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   67        90      1881                        
 MINIMUM TEMPERATURE (F)   53        36      1992                        
  
SUNRISE AND SUNSET                                                      
SEPTEMBER 30 2025.....SUNRISE   640 AM EDT   SUNSET   627 PM EDT       
OCTOBER  1 2025.......SUNRISE   641 AM EDT   SUNSET   625 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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