186  
CDUS41 KBOX 212207  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
557 PM EDT FRI SEP 21 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 21 2018
 
 
VALID TODAY 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 73 1223 PM 94 1895 71 2 72  
MINIMUM 61 628 AM 40 1929 56 5 63  
1904  
AVERAGE 67 63 4 68  
 
PRECIPITATION (IN)  
TODAY 0.00 2.77 1961 0.13 -0.13 0.00  
MONTH TO DATE 3.17 2.32 0.85 1.99  
SINCE SEP 1 3.17 2.32 0.85 1.99  
SINCE JAN 1 35.61 30.94 4.67 33.28  
 
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 4 -4 0  
MONTH TO DATE 6 39 -33 17  
SINCE SEP 1 6 39 -33 17  
SINCE JUL 1 6 52 -46 29  
 
COOLING  
TODAY 2 2 0 3  
MONTH TO DATE 141 70 71 76  
SINCE SEP 1 141 70 71 76  
SINCE JAN 1 1098 729 369 805    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 9.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 1200 AM  
LOWEST 53 1100 AM  
AVERAGE 63  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 94 1895  
MINIMUM TEMPERATURE (F) 55 35 1904  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2018.....SUNRISE 630 AM EDT SUNSET 643 PM EDT  
SEPTEMBER 22 2018.....SUNRISE 631 AM EDT SUNSET 641 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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