389  
CDUS41 KBOX 180532  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
132 AM EDT THU OCT 18 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 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 63 319 PM 89 1947 61 2 58  
MINIMUM 44 619 AM 27 1886 46 -2 40  
AVERAGE 54 53 1 49  
 
PRECIPITATION (IN)  
YESTERDAY T 1.18 1989 0.13 -0.13 0.00  
MONTH TO DATE 1.58 2.17 -0.59 0.49  
SINCE SEP 1 6.70 5.61 1.09 4.22  
SINCE JAN 1 39.14 34.23 4.91 35.51  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1970 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 11 12 -1 16  
MONTH TO DATE 96 156 -60 73  
SINCE SEP 1 125 240 -115 110  
SINCE JUL 1 125 253 -128 122  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 22 6 16 36  
SINCE SEP 1 175 87 88 147  
SINCE JAN 1 1132 746 386 876    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 14.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 200 AM  
LOWEST 34 200 PM  
AVERAGE 55  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 82 1947  
MINIMUM TEMPERATURE (F) 46 31 1939  
1883  
 
 
SUNRISE AND SUNSET  
OCTOBER 18 2018.......SUNRISE 700 AM EDT SUNSET 557 PM EDT  
OCTOBER 19 2018.......SUNRISE 702 AM EDT SUNSET 556 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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