383  
CDUS41 KBOX 210729  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
328 AM EDT SUN OCT 21 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 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 66 224 PM 79 1969 60 6 71  
MINIMUM 49 1051 PM 32 1974 45 4 58  
1972  
1900  
AVERAGE 58 53 5 65  
 
PRECIPITATION (IN)  
YESTERDAY T 6.11 1996 0.13 -0.13 0.00  
MONTH TO DATE 1.58 2.55 -0.97 0.49  
SINCE SEP 1 6.70 5.99 0.71 4.22  
SINCE JAN 1 39.14 34.61 4.53 35.51  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2017 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 7 13 -6 0  
MONTH TO DATE 139 193 -54 80  
SINCE SEP 1 168 277 -109 117  
SINCE JUL 1 168 290 -122 129  
 
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 12 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 13.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 1100 PM  
LOWEST 48 200 PM  
AVERAGE 61  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 82 1920  
MINIMUM TEMPERATURE (F) 45 30 1974  
 
 
SUNRISE AND SUNSET  
OCTOBER 21 2018.......SUNRISE 704 AM EDT SUNSET 553 PM EDT  
OCTOBER 22 2018.......SUNRISE 705 AM EDT SUNSET 551 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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