AFOS product CLIBOS
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CDUS41 KBOX 180530
CLIBOS

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
130 AM EDT SAT SEP 18 2021

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

...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 17 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         70    209 PM  91    1915  73     -3       78       
  MINIMUM         65    817 PM  44    2013  58      7       58       
  AVERAGE         68                        65      3       68     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             2.77 1995   0.13  -0.13     0.00     
  MONTH TO DATE    5.80                      1.90   3.90     0.46     
  SINCE SEP 1      5.80                      1.90   3.90     0.46     
  SINCE JAN 1     41.76                     29.94  11.82    22.18     

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 SEP 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1      0.0                       0.0    0.0       T       

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         2     -2        0        
  MONTH TO DATE    0                        20    -20       18        
  SINCE SEP 1      0                        20    -20       18        
  SINCE JUL 1      9                        29    -20       20        

 COOLING                                                              
  YESTERDAY        3                         3      0        3        
  MONTH TO DATE  110                        70     40       65        
  SINCE SEP 1    110                        70     40       65        
  SINCE JAN 1   1086                       770    316      892        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   N (20)        
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NE (30)        
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     N (10)        
  AVERAGE WIND SPEED     8.3                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           600 PM                                      
 LOWEST     78          1200 PM                                      
 AVERAGE    84                                                        

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   72        90      1891                      
                                             1906                     
                                             1955                     
 MINIMUM TEMPERATURE (F)   58        43      1875                      


SUNRISE AND SUNSET                                                    
SEPTEMBER 18 2021.....SUNRISE   627 AM EDT   SUNSET   648 PM EDT     
SEPTEMBER 19 2021.....SUNRISE   629 AM EDT   SUNSET   646 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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