914   
CDUS41 KBOX 190534  
CLIBOS  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
134 AM EDT FRI SEP 19 2025  
   
...............................  
  
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 2025  
  
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)                                                            
 YESTERDAY                                                             
  MAXIMUM         74    219 PM  90    1891  72      2       72         
                                      1906                             
                                      1955                             
  MINIMUM         62    624 AM  43    1875  58      4       60         
  AVERAGE         68                        65      3       66       
  
PRECIPITATION (IN)                                                      
  YESTERDAY        0.11          2.87 2004   0.13  -0.02     0.00       
  MONTH TO DATE    1.55                      2.03  -0.48      T         
  SINCE SEP 1      1.55                      2.03  -0.48      T         
  SINCE JAN 1     26.50                     30.07  -3.57    34.14       
  
SNOWFALL (IN)                                                                
  YESTERDAY        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                                                                
  YESTERDAY        0                         2     -2        0          
  MONTH TO DATE   18                        22     -4        1          
  SINCE SEP 1     18                        22     -4        1          
  SINCE JUL 1     25                        31     -6        3          
  
 COOLING                                                                
  YESTERDAY        3                         2      1        1          
  MONTH TO DATE   38                        72    -34       57          
  SINCE SEP 1     38                        72    -34       57          
  SINCE JAN 1    795                       772     23      867           
...............................................................  
  
WIND (MPH)                                                              
  RESULTANT WIND SPEED   0   RESULTANT WIND DIRECTION  SE (130)         
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)         
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (200)         
  AVERAGE WIND SPEED     6.6                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.7                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                           
  THUNDERSTORM                                                          
  RAIN                                                                  
  LIGHT RAIN                                                            
  FOG                                                                   
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    97          1200 AM                                        
 LOWEST     73           200 PM                                        
 AVERAGE    85                                                          
   
......................................................  
  
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   72        92      1983                        
 MINIMUM TEMPERATURE (F)   57        42      1929                        
  
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.  
  
  
 
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