535  
CDUS41 KBOX 192120  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
520 PM EDT TUE SEP 19 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 73 309 PM 92 1983 72 1 72  
MINIMUM 61 549 AM 42 1929 57 4 59  
AVERAGE 67 65 2 66  
 
PRECIPITATION (IN)  
TODAY 0.00 1.21 1936 0.12 -0.12 0.42  
MONTH TO DATE 2.98 2.15 0.83 1.55  
SINCE SEP 1 2.98 2.15 0.83 1.55  
SINCE JAN 1 39.54 30.19 9.35 19.48  
 
SNOWFALL (IN)  
TODAY 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 0.0  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 2 25 -23 10  
SINCE SEP 1 2 25 -23 10  
SINCE JUL 1 2 34 -32 10  
 
COOLING  
TODAY 2 2 0 1  
MONTH TO DATE 134 74 60 67  
SINCE SEP 1 134 74 60 67  
SINCE JAN 1 832 774 58 1017    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 15.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 48 300 PM  
AVERAGE 71  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 97 1983  
MINIMUM TEMPERATURE (F) 57 42 1929  
1964  
1979  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2023.....SUNRISE 628 AM EDT SUNSET 647 PM EDT  
SEPTEMBER 20 2023.....SUNRISE 629 AM EDT SUNSET 645 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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