263  
CDUS41 KBOX 210547  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
146 AM EDT TUE AUG 21 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 20 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 74 107 PM 98 1937 79 -5 85  
MINIMUM 67 1158 PM 52 1905 64 3 72  
1896  
1882  
AVERAGE 71 72 -1 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.10 1894 0.10 -0.10 0.00  
MONTH TO DATE 4.15 2.26 1.89 1.47  
SINCE JUN 1 11.66 9.37 2.29 10.35  
SINCE JAN 1 31.94 27.53 4.41 31.18  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1951 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 56 61 -5 60  
SINCE JUL 1 0 6 -6 10  
 
COOLING  
YESTERDAY 6 7 -1 14  
MONTH TO DATE 260 160 100 166  
SINCE JUN 1 753 562 191 607  
SINCE JAN 1 826 592 234 667    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 11.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1200 AM  
LOWEST 68 1000 AM  
AVERAGE 78  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 97 1955  
MINIMUM TEMPERATURE (F) 64 52 1882  
1876  
 
 
SUNRISE AND SUNSET  
AUGUST 21 2018........SUNRISE 558 AM EDT SUNSET 736 PM EDT  
AUGUST 22 2018........SUNRISE 559 AM EDT SUNSET 735 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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