946  
CDUS41 KBOX 200618  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
218 AM EDT WED AUG 20 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 19 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 347 PM 95 2019 80 -9 75  
MINIMUM 59 412 AM 51 1882 65 -6 65  
AVERAGE 65 73 -8 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 7.06 1955 0.10 -0.10 0.11  
MONTH TO DATE 0.52 2.05 -1.53 3.69  
SINCE JUN 1 4.85 9.21 -4.36 9.12  
SINCE JAN 1 24.64 26.86 -2.22 34.13  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0  
2001  
2002  
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  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 1  
SINCE JUN 1 45 54 -9 8  
SINCE JUL 1 1 4 -3 1  
 
COOLING  
YESTERDAY 0 8 -8 5  
MONTH TO DATE 136 163 -27 169  
SINCE JUN 1 677 585 92 707  
SINCE JAN 1 706 618 88 753    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 7.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 900 PM  
LOWEST 42 300 PM  
AVERAGE 57  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 98 1937  
MINIMUM TEMPERATURE (F) 65 52 1882  
1896  
1905  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 557 AM EDT SUNSET 737 PM EDT  
AUGUST 21 2025........SUNRISE 558 AM EDT SUNSET 736 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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