AFOS product CLIBOS
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CDUS41 KBOX 310649
CLIBOS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA                            
149 AM EST TUE DEC 31 2019


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

...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 30 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2019


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         41   1159 PM  63    1984  37      4       34       
  MINIMUM         36    419 AM -15    1933  24     12       26       
  AVERAGE         39                        31      8       30      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        1.29          2.08 1901   0.11   1.18     0.00    
  MONTH TO DATE    5.80                      3.68   2.12     2.31    
  SINCE DEC 1      5.80                      3.68   2.12     2.31    
  SINCE JAN 1     50.11                     43.67   6.44    52.91    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        T             8.0  1993   0.4   -0.4      0.0     
  MONTH TO DATE   11.5                       8.6    2.9      0.1     
  SINCE DEC 1     11.5                       8.6    2.9      0.1     
  SINCE JUL 1     11.5                       9.9    1.6      0.2     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       26                        34     -8       35       
  MONTH TO DATE  829                       902    -73      827       
  SINCE DEC 1    829                       902    -73      827       
  SINCE JUL 1   1751                      1957   -206     1851       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1013                       747    266     1132       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  19   RESULTANT WIND DIRECTION   E (80)       
  HIGHEST WIND SPEED    35   HIGHEST WIND DIRECTION     E (80)       
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED    20.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    85           700 AM                                     
 LOWEST     70          1200 AM                                     
 AVERAGE    78                                                       

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

                                                                     
THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   37        65      1932                    
 MINIMUM TEMPERATURE (F)   24        -8      1917                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 31 2019......SUNRISE   713 AM EST   SUNSET   421 PM EST   
JANUARY  1 2020.......SUNRISE   713 AM EST   SUNSET   422 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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