486 
CDUS41 KBOX 170642
CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
242 AM EDT WED MAY 17 2023

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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 16 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         81    215 PM  93    1932  67     14       79       
  MINIMUM         61   1159 PM  34    1936  50     11       58       
  AVERAGE         71                        58     13       69     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          4.47 1954   0.10  -0.10     0.09     
  MONTH TO DATE    0.28                      1.63  -1.35     0.47     
  SINCE MAR 1      7.67                      9.43  -1.76     5.72     
  SINCE JAN 1     14.26                     16.03  -1.77    12.66     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0  2000   0.0    0.0      0.0      
                                      2001                           
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE MAR 1      0.9                      10.6   -9.7      2.1      
  SINCE JUL 1     12.4                      49.2  -36.8     54.0      

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         7     -7        0        
  MONTH TO DATE   91                       147    -56      151        
  SINCE MAR 1   1259                      1471   -212     1315        
  SINCE JUL 1   4575                      5409   -834     4937        

 COOLING                                                              
  YESTERDAY        6                         1      5        4        
  MONTH TO DATE   27                         8     19       21        
  SINCE MAR 1     32                        12     20       21        
  SINCE JAN 1     32                        12     20       21        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  15   RESULTANT WIND DIRECTION  SW (240)       
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (240)       
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (260)       
  AVERAGE WIND SPEED    15.6                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.8                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    52          1100 PM                                      
 LOWEST     17           500 PM                                      
 AVERAGE    35                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   67        92      1977                      
                                             2017                     
 MINIMUM TEMPERATURE (F)   51        39      1882                      


SUNRISE AND SUNSET                                                    
MAY 17 2023...........SUNRISE   521 AM EDT   SUNSET   801 PM EDT     
MAY 18 2023...........SUNRISE   520 AM EDT   SUNSET   802 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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