115  
CDUS41 KBOX 202124  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
524 PM EDT WED AUG 20 2025  
   
...............................  
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 20 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 66 1250 PM 98 1937 80 -14 70  
MINIMUM 60 350 PM 52 1882 65 -5 60  
1896  
1905  
AVERAGE 63 72 -9 65  
 
PRECIPITATION (IN)  
TODAY 0.04 2.10 1894 0.10 -0.06 0.01  
MONTH TO DATE 0.56 2.15 -1.59 3.70  
SINCE JUN 1 4.89 9.31 -4.42 9.13  
SINCE JAN 1 24.68 26.96 -2.28 34.14  
 
SNOWFALL (IN)  
TODAY 0.0 T 1951 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  
TODAY 2 0 2 0  
MONTH TO DATE 3 0 3 1  
SINCE JUN 1 47 54 -7 8  
SINCE JUL 1 3 4 -1 1  
 
COOLING  
TODAY 0 8 -8 0  
MONTH TO DATE 136 171 -35 169  
SINCE JUN 1 677 593 84 707  
SINCE JAN 1 706 626 80 753    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 7.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 800 AM  
LOWEST 61 100 PM  
AVERAGE 71  
   
......................................................  
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 97 1955  
MINIMUM TEMPERATURE (F) 65 52 1876  
1882  
 
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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