773  
CDUS41 KBOX 110522  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
122 AM EDT MON AUG 11 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 10 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 84 1209 PM 101 1949 81 3 89  
MINIMUM 64 409 AM 53 1964 66 -2 74  
AVERAGE 74 74 0 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.97 1917 0.10 -0.10 0.11  
MONTH TO DATE 0.28 1.11 -0.83 2.66  
SINCE JUN 1 4.61 8.27 -3.66 8.09  
SINCE JAN 1 24.40 25.92 -1.52 33.10  
 
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 0 0 0 1  
SINCE JUN 1 44 54 -10 8  
SINCE JUL 1 0 4 -4 1  
 
COOLING  
YESTERDAY 9 9 0 17  
MONTH TO DATE 49 90 -41 115  
SINCE JUN 1 590 512 78 653  
SINCE JAN 1 619 545 74 699    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 8.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 500 AM  
LOWEST 55 1200 PM  
AVERAGE 71  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 1944  
MINIMUM TEMPERATURE (F) 66 54 1879  
 
SUNRISE AND SUNSET  
AUGUST 11 2025........SUNRISE 547 AM EDT SUNSET 750 PM EDT  
AUGUST 12 2025........SUNRISE 548 AM EDT SUNSET 749 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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