271  
CDUS41 KBOX 180528  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
128 AM EDT FRI JUL 18 2025  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JULY 17 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 MM 98 1977 83 8 90  
1999  
MINIMUM 72 MM 54 1892 66 6 74  
1946  
AVERAGE 82 74 8 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.68 2018 0.11 -0.11 0.02  
MONTH TO DATE 1.91 1.76 0.15 0.93  
SINCE JUN 1 3.23 5.65 -2.42 4.97  
SINCE JAN 1 23.02 23.30 -0.28 29.98  
 
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 0  
SINCE JUN 1 44 50 -6 7  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 10 7 17  
MONTH TO DATE 200 151 49 223  
SINCE JUN 1 390 289 101 413  
SINCE JAN 1 419 322 97 459    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 27 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 14.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 400 AM  
LOWEST 52 100 PM  
AVERAGE 75  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 98 1982  
MINIMUM TEMPERATURE (F) 67 54 1881  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 524 AM EDT SUNSET 817 PM EDT  
JULY 19 2025..........SUNRISE 524 AM EDT SUNSET 816 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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