797  
CDUS41 KBOX 130530  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
130 AM EDT WED AUG 13 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 12 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 91 1106 AM 101 1944 81 10 79  
MINIMUM 73 1159 PM 53 1930 66 7 65  
AVERAGE 82 73 9 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.29 1892 0.11 -0.11 0.00  
MONTH TO DATE 0.28 1.33 -1.05 2.66  
SINCE JUN 1 4.61 8.49 -3.88 8.09  
SINCE JAN 1 24.40 26.14 -1.74 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 17 8 9 7  
MONTH TO DATE 81 107 -26 134  
SINCE JUN 1 622 529 93 672  
SINCE JAN 1 651 562 89 718    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 1000 PM  
LOWEST 32 1100 AM  
AVERAGE 53  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 100 1944  
MINIMUM TEMPERATURE (F) 66 53 1902  
 
SUNRISE AND SUNSET  
AUGUST 13 2025........SUNRISE 549 AM EDT SUNSET 748 PM EDT  
AUGUST 14 2025........SUNRISE 551 AM EDT SUNSET 746 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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