294  
CDUS41 KBOX 182126  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
526 PM EDT TUE SEP 18 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 2018
 
 
VALID AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 77 950 AM 90 1955 72 5 68  
1906  
1891  
MINIMUM 70 1119 AM 43 1875 57 13 63  
AVERAGE 74 64 10 66  
 
PRECIPITATION (IN)  
TODAY 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)  
TODAY 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  
TODAY 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  
TODAY 9 2 7 1  
MONTH TO DATE 138 64 74 70  
SINCE SEP 1 138 64 74 70  
SINCE JAN 1 1095 723 372 799    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 87 100 AM  
AVERAGE 90  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 92 1983  
MINIMUM TEMPERATURE (F) 56 42 1929  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2018.....SUNRISE 627 AM EDT SUNSET 649 PM EDT  
SEPTEMBER 19 2018.....SUNRISE 628 AM EDT SUNSET 647 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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