724 
CDUS41 KBOX 190527
CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
127 AM EDT FRI MAY 19 2023

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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 18 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         64    157 PM  95    2017  67     -3       73       
  MINIMUM         42    452 AM  37    2002  51     -9       54       
  AVERAGE         53                        59     -6       64     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.72 2007   0.10  -0.10     0.00     
  MONTH TO DATE    0.28                      1.82  -1.54     0.47     
  SINCE MAR 1      7.67                      9.62  -1.95     5.72     
  SINCE JAN 1     14.26                     16.22  -1.96    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       12                         7      5        1        
  MONTH TO DATE  115                       161    -46      152        
  SINCE MAR 1   1283                      1485   -202     1316        
  SINCE JUL 1   4599                      5423   -824     4938        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE   27                        10     17       22        
  SINCE MAR 1     32                        14     18       22        
  SINCE JAN 1     32                        14     18       22        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SW (240)       
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (190)       
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (190)       
  AVERAGE WIND SPEED    11.3                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.2                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    61          1100 PM                                      
 LOWEST     21           200 PM                                      
 AVERAGE    41                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   67        90      1949                      
                                             1986                     
                                             2017                     
 MINIMUM TEMPERATURE (F)   51        38      1882                      


SUNRISE AND SUNSET                                                    
MAY 19 2023...........SUNRISE   519 AM EDT   SUNSET   803 PM EDT     
MAY 20 2023...........SUNRISE   518 AM EDT   SUNSET   804 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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