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CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
234 AM EDT SUN MAY 21 2023

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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 20 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         66   1159 PM  91    1996  68     -2       66       
  MINIMUM         53    325 AM  40    1892  51      2       52       
  AVERAGE         60                        60      0       59     

PRECIPITATION (IN)                                                    
  YESTERDAY        1.83R         1.23 1969   0.11   1.72      T       
  MONTH TO DATE    2.11                      2.03   0.08     0.48     
  SINCE MAR 1      9.50                      9.83  -0.33     5.73     
  SINCE JAN 1     16.09                     16.43  -0.34    12.67     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0  2000   0.0    0.0      0.0      
                                      2001                           
                                      2002                           
  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        5                         6     -1        6        
  MONTH TO DATE  127                       174    -47      164        
  SINCE MAR 1   1295                      1498   -203     1328        
  SINCE JUL 1   4611                      5436   -825     4950        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE   27                        12     15       22        
  SINCE MAR 1     32                        16     16       22        
  SINCE JAN 1     32                        16     16       22        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SE (150)       
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (180)       
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (180)       
  AVERAGE WIND SPEED     9.3                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 PM                                      
 LOWEST     77          1200 AM                                      
 AVERAGE    89                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   68        93      1921                      
 MINIMUM TEMPERATURE (F)   52        41      1907                      


SUNRISE AND SUNSET                                                    
MAY 21 2023...........SUNRISE   517 AM EDT   SUNSET   805 PM EDT     
MAY 22 2023...........SUNRISE   517 AM EDT   SUNSET   806 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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