899 CDUS41 KBOX 200529 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 129 AM EDT SAT SEP 20 2025 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 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 82 252 PM 92 1983 72 10 75 MINIMUM 61 1159 PM 42 1929 57 4 62 AVERAGE 72 65 7 69 PRECIPITATION (IN) YESTERDAY 0.00 1.21 1936 0.12 -0.12 0.01 MONTH TO DATE 1.55 2.15 -0.60 0.01 SINCE SEP 1 1.55 2.15 -0.60 0.01 SINCE JAN 1 26.50 30.19 -3.69 34.15 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 0 3 -3 0 MONTH TO DATE 18 25 -7 1 SINCE SEP 1 18 25 -7 1 SINCE JUL 1 25 34 -9 3 COOLING YESTERDAY 7 2 5 4 MONTH TO DATE 45 74 -29 61 SINCE SEP 1 45 74 -29 61 SINCE JAN 1 802 774 28 871 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NW (310) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (350) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 11.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 68 500 AM LOWEST 29 600 PM AVERAGE 49 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 97 1983 MINIMUM TEMPERATURE (F) 57 42 1929 1964 1979 SUNRISE AND SUNSET SEPTEMBER 20 2025.....SUNRISE 630 AM EDT SUNSET 644 PM EDT SEPTEMBER 21 2025.....SUNRISE 631 AM EDT SUNSET 643 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$