942  
CDUS41 KBOX 160556  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
144 AM EDT SUN SEP 16 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 15 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 216 PM 94 1915 73 0 77  
MINIMUM 63 333 AM 41 1913 58 5 66  
AVERAGE 68 65 3 72  
 
PRECIPITATION (IN)  
YESTERDAY T 3.48 1904 0.11 -0.11 0.21  
MONTH TO DATE 2.02 1.60 0.42 1.68  
SINCE SEP 1 2.02 1.60 0.42 1.68  
SINCE JAN 1 34.46 30.22 4.24 32.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2017 0.0 0.0 0.0  
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  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 4 20 -16 17  
SINCE SEP 1 4 20 -16 17  
SINCE JUL 1 4 33 -29 29  
 
COOLING  
YESTERDAY 3 3 0 7  
MONTH TO DATE 111 58 53 64  
SINCE SEP 1 111 58 53 64  
SINCE JAN 1 1068 717 351 793    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SE (130)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 5.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 AM  
LOWEST 78 600 PM  
AVERAGE 89  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 96 1939  
MINIMUM TEMPERATURE (F) 57 42 1984  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2018.....SUNRISE 625 AM EDT SUNSET 652 PM EDT  
SEPTEMBER 17 2018.....SUNRISE 626 AM EDT SUNSET 650 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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