033 
CDUS41 KBOX 160628
CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
128 AM EST WED DEC 16 2020

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

...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 15 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         36    215 PM  66    1975  41     -5       55       
  MINIMUM         23   1159 PM  -2    1874  28     -5       34       
  AVERAGE         30                        35     -5       45     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.51 1981   0.13  -0.13     0.00     
  MONTH TO DATE    2.71                      1.93   0.78     3.77     
  SINCE DEC 1      2.71                      1.93   0.78     3.77     
  SINCE JAN 1     34.58                     41.92  -7.34    48.08     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           6.1  1916   0.2   -0.2      0.0      
  MONTH TO DATE    0.3                       3.4   -3.1     10.1      
  SINCE DEC 1      0.3                       3.4   -3.1     10.1      
  SINCE JUL 1      4.6                       4.7   -0.1     10.1      

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       35                        30      5       20        
  MONTH TO DATE  391                       415    -24      397        
  SINCE DEC 1    391                       415    -24      397        
  SINCE JUL 1   1278                      1470   -192     1319        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1    924                       747    177     1013        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (290)       
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NW (300)       
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NW (300)       
  AVERAGE WIND SPEED    13.8                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.3                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75          1200 AM                                      
 LOWEST     25           200 PM                                      
 AVERAGE    50                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   41        64      1971                      
 MINIMUM TEMPERATURE (F)   28         1      1876                      
                                             1883                     


SUNRISE AND SUNSET                                                    
DECEMBER 16 2020......SUNRISE   707 AM EST   SUNSET   413 PM EST     
DECEMBER 17 2020......SUNRISE   708 AM EST   SUNSET   413 PM EST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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