669  
CDUS41 KBOX 100541  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
130 AM EDT MON SEP 10 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 9 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 65 1255 PM 93 2016 75 -10 68  
2015  
MINIMUM 57 644 AM 45 1938 60 -3 55  
AVERAGE 61 67 -6 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.19 1969 0.11 -0.11 0.01  
MONTH TO DATE 0.03 0.93 -0.90 1.11  
SINCE SEP 1 0.03 0.93 -0.90 1.11  
SINCE JAN 1 32.47 29.55 2.92 32.40  
 
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 4 1 3 3  
MONTH TO DATE 4 9 -5 15  
SINCE SEP 1 4 9 -5 15  
SINCE JUL 1 4 22 -18 27  
 
COOLING  
YESTERDAY 0 4 -4 0  
MONTH TO DATE 92 40 52 28  
SINCE SEP 1 92 40 52 28  
SINCE JAN 1 1049 699 350 757    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 13.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67 600 AM  
LOWEST 46 900 PM  
AVERAGE 57  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 95 1931  
MINIMUM TEMPERATURE (F) 60 41 1883  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2018.....SUNRISE 619 AM EDT SUNSET 703 PM EDT  
SEPTEMBER 11 2018.....SUNRISE 620 AM EDT SUNSET 701 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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