587  
CDUS41 KBOX 190619  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
209 AM EDT WED SEP 19 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 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 77 950 AM 90 1955 72 5 68  
1906  
1891  
MINIMUM 69 1159 PM 43 1875 57 12 63  
AVERAGE 73 64 9 66  
 
PRECIPITATION (IN)  
YESTERDAY 1.15 2.87 2004 0.12 1.03 T  
MONTH TO DATE 3.17 1.95 1.22 1.68  
SINCE SEP 1 3.17 1.95 1.22 1.68  
SINCE JAN 1 35.61 30.57 5.04 32.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0  
2001  
2000  
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 3 -3 0  
MONTH TO DATE 4 29 -25 17  
SINCE SEP 1 4 29 -25 17  
SINCE JUL 1 4 42 -38 29  
 
COOLING  
YESTERDAY 8 2 6 1  
MONTH TO DATE 137 64 73 70  
SINCE SEP 1 137 64 73 70  
SINCE JAN 1 1094 723 371 799    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 84 600 PM  
AVERAGE 89  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 92 1983  
MINIMUM TEMPERATURE (F) 56 42 1929  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2018.....SUNRISE 628 AM EDT SUNSET 647 PM EDT  
SEPTEMBER 20 2018.....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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