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CDUS41 KBOX 190534
CLIBOS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA                            
134 AM EDT TUE MAY 19 2020


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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 18 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58    726 AM  95    2017  67     -9       70       
  MINIMUM         47   1030 PM  37    2002  50     -3       53       
  AVERAGE         53                        59     -6       62      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.72 2007   0.11  -0.11     0.00    
  MONTH TO DATE    2.12                      1.88   0.24     2.02    
  SINCE MAR 1     10.05                      9.94   0.11    11.49    
  SINCE JAN 1     14.74                     16.55  -1.81    18.56    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2001   0.0    0.0      0.0     
                                      2000                          
  MONTH TO DATE    T                         0.1   -0.1      0.0     
  SINCE MAR 1      0.7                       9.8   -9.1     13.5     
  SINCE JUL 1     15.8                      43.9  -28.1     27.4     
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                         7      5        3       
  MONTH TO DATE  207                       172     35      197       
  SINCE MAR 1   1526                      1511     15     1391       
  SINCE JUL 1   4909                      5553   -644     5197       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    1                         5     -4        0       
  SINCE MAR 1      1                         8     -7        8       
  SINCE JAN 1      1                         8     -7        8       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   E (70)       
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (80)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     E (80)       
  AVERAGE WIND SPEED     8.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1000 PM                                     
 LOWEST     66          1200 AM                                     
 AVERAGE    80                                                       

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

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

                                                                     
SUNRISE AND SUNSET                                                   
MAY 19 2020...........SUNRISE   518 AM EDT   SUNSET   803 PM EDT   
MAY 20 2020...........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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