261  
CDUS41 KBOX 210625  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
214 AM EDT SUN JUL 21 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JULY 20 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 97 345 PM 99 1991 82 15 79  
MINIMUM 80 356 AM 54 1890 66 14 66  
1879  
AVERAGE 89 74 15 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.78 1982 0.11 -0.11 0.00  
MONTH TO DATE 2.67 2.09 0.58 3.61  
SINCE JUN 1 7.82 5.77 2.05 6.57  
SINCE JAN 1 27.71 23.93 3.78 26.85  
 
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 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 21 55 -34 56  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 24 9 15 8  
MONTH TO DATE 286 169 117 210  
SINCE JUN 1 412 305 107 351  
SINCE JAN 1 441 335 106 424    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 9.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 1200 AM  
LOWEST 48 400 PM  
AVERAGE 64  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 102 1977  
MINIMUM TEMPERATURE (F) 66 52 1890  
 
 
SUNRISE AND SUNSET  
JULY 21 2019..........SUNRISE 526 AM EDT SUNSET 815 PM EDT  
JULY 22 2019..........SUNRISE 527 AM EDT SUNSET 814 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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