612 CDUS41 KBOX 180530 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 130 AM EDT SAT SEP 18 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 17 2021... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1872 TO 2021 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 70 209 PM 91 1915 73 -3 78 MINIMUM 65 817 PM 44 2013 58 7 58 AVERAGE 68 65 3 68 PRECIPITATION (IN) YESTERDAY T 2.77 1995 0.13 -0.13 0.00 MONTH TO DATE 5.80 1.90 3.90 0.46 SINCE SEP 1 5.80 1.90 3.90 0.46 SINCE JAN 1 41.76 29.94 11.82 22.18 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 T DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 0 20 -20 18 SINCE SEP 1 0 20 -20 18 SINCE JUL 1 9 29 -20 20 COOLING YESTERDAY 3 3 0 3 MONTH TO DATE 110 70 40 65 SINCE SEP 1 110 70 40 65 SINCE JAN 1 1086 770 316 892 ................................................................... WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (20) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (10) AVERAGE WIND SPEED 8.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 600 PM LOWEST 78 1200 PM AVERAGE 84 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 90 1891 1906 1955 MINIMUM TEMPERATURE (F) 58 43 1875 SUNRISE AND SUNSET SEPTEMBER 18 2021.....SUNRISE 627 AM EDT SUNSET 648 PM EDT SEPTEMBER 19 2021.....SUNRISE 629 AM EDT SUNSET 646 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$