415  
CDUS41 KBOX 120525  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
125 AM EDT TUE AUG 12 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 11 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 90 328 PM 99 1944 81 9 84  
MINIMUM 70 502 AM 54 1879 66 4 69  
AVERAGE 80 74 6 77  
 
PRECIPITATION (IN)  
YESTERDAY T 2.80 1990 0.11 -0.11 0.00  
MONTH TO DATE 0.28 1.22 -0.94 2.66  
SINCE JUN 1 4.61 8.38 -3.77 8.09  
SINCE JAN 1 24.40 26.03 -1.63 33.10  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1954 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  
 
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 15 9 6 12  
MONTH TO DATE 64 99 -35 127  
SINCE JUN 1 605 521 84 665  
SINCE JAN 1 634 554 80 711    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 300 AM  
LOWEST 42 1200 PM  
AVERAGE 62  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 101 1944  
MINIMUM TEMPERATURE (F) 66 53 1930  
 
SUNRISE AND SUNSET  
AUGUST 12 2025........SUNRISE 548 AM EDT SUNSET 749 PM EDT  
AUGUST 13 2025........SUNRISE 549 AM EDT SUNSET 748 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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