925  
CDUS41 KBOX 210624  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
224 AM EDT THU AUG 21 2025  
   
...............................  
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 20 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 66 1250 PM 98 1937 80 -14 70  
MINIMUM 56 738 PM 52 1882 65 -9 60  
1896  
1905  
AVERAGE 61 72 -11 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.24 2.10 1894 0.10 0.14 0.01  
MONTH TO DATE 0.76 2.15 -1.39 3.70  
SINCE JUN 1 5.09 9.31 -4.22 9.13  
SINCE JAN 1 24.88 26.96 -2.08 34.14  
 
SNOWFALL (IN)  
YESTERDAY 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  
YESTERDAY 4 0 4 0  
MONTH TO DATE 5 0 5 1  
SINCE JUN 1 49 54 -5 8  
SINCE JUL 1 5 4 1 1  
 
COOLING  
YESTERDAY 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)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1100 PM  
LOWEST 61 100 PM  
AVERAGE 75  
   
......................................................  
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 97 1955  
MINIMUM TEMPERATURE (F) 65 52 1876  
1882  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 558 AM EDT SUNSET 736 PM EDT  
AUGUST 22 2025........SUNRISE 559 AM EDT SUNSET 734 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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