875 CDUS41 KBOX 210538 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 1238 AM EST MON DEC 21 2020 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 20 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1872 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 36 410 PM 63 1957 40 -4 33 MINIMUM 26 805 AM -11 1875 27 -1 17 1942 AVERAGE 31 33 -2 25 PRECIPITATION (IN) YESTERDAY 0.03 1.35 1936 0.11 -0.08 0.00 MONTH TO DATE 4.08 2.52 1.56 4.42 SINCE DEC 1 4.08 2.52 1.56 4.42 SINCE JAN 1 35.95 42.51 -6.56 48.73 SNOWFALL (IN) YESTERDAY T 10.0 2009 0.3 -0.3 0.0 MONTH TO DATE 13.0 5.0 8.0 11.5 SINCE DEC 1 13.0 5.0 8.0 11.5 SINCE JUL 1 17.3 6.3 11.0 11.5 DEGREE DAYS HEATING YESTERDAY 34 32 2 40 MONTH TO DATE 585 570 15 578 SINCE DEC 1 585 570 15 578 SINCE JUL 1 1472 1625 -153 1500 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 924 747 177 1013 ................................................................... WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 3.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 600 PM LOWEST 68 200 AM AVERAGE 80 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 39 65 2018 MINIMUM TEMPERATURE (F) 26 -5 1942 SUNRISE AND SUNSET DECEMBER 21 2020......SUNRISE 710 AM EST SUNSET 415 PM EST DECEMBER 22 2020......SUNRISE 711 AM EST SUNSET 415 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$