537 CDUS41 KBOX 170548 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 148 AM EDT WED SEP 17 2025 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 16 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 68 105 PM 96 1939 73 -5 76 MINIMUM 57 540 AM 42 1984 58 -1 56 AVERAGE 63 66 -3 66 PRECIPITATION (IN) YESTERDAY 0.00 5.63 1933 0.13 -0.13 0.00 MONTH TO DATE 1.43 1.77 -0.34 T SINCE SEP 1 1.43 1.77 -0.34 T SINCE JAN 1 26.38 29.81 -3.43 34.14 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 SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 DEGREE DAYS HEATING YESTERDAY 2 2 0 0 MONTH TO DATE 16 18 -2 1 SINCE SEP 1 16 18 -2 1 SINCE JUL 1 23 27 -4 3 COOLING YESTERDAY 0 3 -3 1 MONTH TO DATE 35 67 -32 54 SINCE SEP 1 35 67 -32 54 SINCE JAN 1 792 767 25 864 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (50) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 5.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 100 AM LOWEST 68 400 PM AVERAGE 84 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 91 1915 MINIMUM TEMPERATURE (F) 58 44 2013 SUNRISE AND SUNSET SEPTEMBER 17 2025.....SUNRISE 626 AM EDT SUNSET 650 PM EDT SEPTEMBER 18 2025.....SUNRISE 627 AM EDT SUNSET 648 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$