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CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
332 AM EDT MON MAY 31 2021

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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 30 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         51   1159 PM  96    1929  71    -20       80       
  MINIMUM         50    958 PM  35    1884  54     -4       65       
  AVERAGE         51                        62    -11       73     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.72          1.52 1948   0.12   0.60     0.09     
  MONTH TO DATE    4.77                      3.14   1.63     2.21     
  SINCE MAR 1     11.10                     10.94   0.16    10.14     
  SINCE JAN 1     16.17                     17.54  -1.37    14.83     

SNOWFALL (IN)                                                              
  YESTERDAY       MM             0.0  2000   0.0   MM        0.0      
                                      2001                           
                                      2002                           
  MONTH TO DATE    0.0                       0.0    0.0       T       
  SINCE MAR 1      0.2                      10.6  -10.4      0.7      
  SINCE JUL 1     38.6                      49.2  -10.6     15.8      

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       14                         4     10        0        
  MONTH TO DATE  159                       228    -69      277        
  SINCE MAR 1   1283                      1552   -269     1596        
  SINCE JUL 1   5060                      5490   -430     4979        

 COOLING                                                              
  YESTERDAY        0                         2     -2        8        
  MONTH TO DATE   64                        27     37       34        
  SINCE MAR 1     64                        31     33       34        
  SINCE JAN 1     64                        31     33       34        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  17   RESULTANT WIND DIRECTION  NE (50)        
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (60)        
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NE (60)        
  AVERAGE WIND SPEED    17.2                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89          1000 AM                                      
 LOWEST     71          1200 AM                                      
 AVERAGE    80                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   71        96      1944                      
 MINIMUM TEMPERATURE (F)   55        39      1884                      


SUNRISE AND SUNSET                                                    
MAY 31 2021...........SUNRISE   510 AM EDT   SUNSET   814 PM EDT     
JUNE  1 2021..........SUNRISE   510 AM EDT   SUNSET   815 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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