349 
CDUS41 KBOX 210526
CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
126 AM EDT TUE OCT 21 2025

...................................

...THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 20 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         67    918 AM  79    1969  61      6       77       
  MINIMUM         54   1137 PM  32    1900  46      8       45       
                                      1972                           
                                      1974                           
  AVERAGE         61                        53      8       61     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.62          6.11 1996   0.14   0.48     0.00     
  MONTH TO DATE    3.89                      2.59   1.30     0.69     
  SINCE SEP 1      6.98                      6.15   0.83     2.02     
  SINCE JAN 1     31.93                     34.19  -2.26    36.16     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0  2007   0.1   -0.1      0.0      
                                      2008                           
                                      2009                           
  MONTH TO DATE    0.0                       0.1   -0.1      0.0      
  SINCE SEP 1      0.0                       0.1   -0.1      0.0      
  SINCE JUL 1      0.0                       0.1   -0.1      0.0      

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        4                        12     -8        4        
  MONTH TO DATE  147                       175    -28      170        
  SINCE SEP 1    179                       246    -67      205        
  SINCE JUL 1    186                       255    -69      207        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE   23                         6     17        0        
  SINCE SEP 1    108                        97     11       67        
  SINCE JAN 1    865                       797     68      877        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (170)       
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SW (220)       
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    SW (220)       
  AVERAGE WIND SPEED    12.7                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.8                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HEAVY RAIN                                                          
  RAIN                                                                
  LIGHT RAIN                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1000 AM                                      
 LOWEST     72           500 PM                                      
 AVERAGE    83                                                        

..........................................................


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   60        83      2024                      
 MINIMUM TEMPERATURE (F)   46        30      1974                      


SUNRISE AND SUNSET                                                    
OCTOBER 21 2025.......SUNRISE   704 AM EDT   SUNSET   552 PM EDT     
OCTOBER 22 2025.......SUNRISE   706 AM EDT   SUNSET   551 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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