913   
CDUS41 KBOX 192119  
CLIBOS  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
519 PM EDT FRI SEP 19 2025  
   
...............................  
  
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 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         82    252 PM  92    1983  72     10       75         
  MINIMUM         65    516 AM  42    1929  57      8       62         
  AVERAGE         74                        65      9       69       
  
PRECIPITATION (IN)                                                      
  TODAY            0.00          1.21 1936   0.12  -0.12     0.01       
  MONTH TO DATE    1.55                      2.15  -0.60     0.01       
  SINCE SEP 1      1.55                      2.15  -0.60     0.01       
  SINCE JAN 1     26.50                     30.19  -3.69    34.15       
  
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                         3     -3        0          
  MONTH TO DATE   18                        25     -7        1          
  SINCE SEP 1     18                        25     -7        1          
  SINCE JUL 1     25                        34     -9        3          
  
 COOLING                                                                
  TODAY            9                         2      7        4          
  MONTH TO DATE   47                        74    -27       61          
  SINCE SEP 1     47                        74    -27       61          
  SINCE JAN 1    804                       774     30      871           
...............................................................  
  
WIND (MPH)                                                              
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NW (320)         
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (300)         
  AVERAGE WIND SPEED    11.0                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.2                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED TODAY.                               
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                    
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    68           500 AM                                        
 LOWEST     35           400 PM                                        
 AVERAGE    52                                                          
   
......................................................  
  
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   72        97      1983                        
 MINIMUM TEMPERATURE (F)   57        42      1929                        
                                             1964                       
                                             1979                       
  
SUNRISE AND SUNSET                                                      
SEPTEMBER 19 2025.....SUNRISE   629 AM EDT   SUNSET   646 PM EDT       
SEPTEMBER 20 2025.....SUNRISE   630 AM EDT   SUNSET   644 PM EDT       
  
-  INDICATES NEGATIVE NUMBERS.  
R  INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T  INDICATES TRACE AMOUNT.  
  
  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MA Page
The Nexlab RI Page
The Nexlab NH Page
The Nexlab CT Page
 Main Text Page
Main Text Page