474 CDUS41 KBOX 130542 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 1242 AM EST SUN DEC 13 2020 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 12 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 47 806 PM 68 1911 42 5 33 1979 MINIMUM 35 721 AM 2 1988 29 6 26 AVERAGE 41 36 5 30 PRECIPITATION (IN) YESTERDAY 0.50 4.21 1992 0.12 0.38 0.00 MONTH TO DATE 2.65 1.56 1.09 2.42 SINCE DEC 1 2.65 1.56 1.09 2.42 SINCE JAN 1 34.52 41.55 -7.03 46.73 SNOWFALL (IN) YESTERDAY 0.0 13.0 1960 0.3 -0.3 0.0 MONTH TO DATE 0.3 2.6 -2.3 10.1 SINCE DEC 1 0.3 2.6 -2.3 10.1 SINCE JUL 1 4.6 3.9 0.7 10.1 DEGREE DAYS HEATING YESTERDAY 24 29 -5 35 MONTH TO DATE 313 326 -13 339 SINCE DEC 1 313 326 -13 339 SINCE JUL 1 1200 1381 -181 1261 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 4 RESULTANT WIND DIRECTION NE (40) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (70) AVERAGE WIND SPEED 5.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 500 AM LOWEST 89 1200 AM AVERAGE 95 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 42 63 1984 MINIMUM TEMPERATURE (F) 29 4 1890 1893 1898 SUNRISE AND SUNSET DECEMBER 13 2020......SUNRISE 705 AM EST SUNSET 412 PM EST DECEMBER 14 2020......SUNRISE 706 AM EST SUNSET 412 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$