862 CDUS41 KBOX 182203 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 503 PM EST SAT DEC 18 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 18 2021... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM 43 1241 AM 61 1915 42 1 30 1928 1990 MINIMUM 34 359 PM -6 1919 29 5 21 AVERAGE 39 35 4 26 PRECIPITATION (IN) TODAY 0.08 1.44 1951 0.14 -0.06 0.00 MONTH TO DATE 0.84 2.58 -1.74 3.05 SINCE DEC 1 0.84 2.58 -1.74 3.05 SINCE JAN 1 50.72 41.87 8.85 34.92 SNOWFALL (IN) TODAY 0.0 4.0 1904 0.3 -0.3 0.0 MONTH TO DATE 0.3 4.3 -4.0 13.0 SINCE DEC 1 0.3 4.3 -4.0 13.0 SINCE JUL 1 0.3 5.2 -4.9 17.3 DEGREE DAYS HEATING TODAY 26 30 -4 39 MONTH TO DATE 402 498 -96 510 SINCE DEC 1 402 498 -96 510 SINCE JUL 1 1190 1512 -322 1397 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1146 800 346 924 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 6.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. RAIN LIGHT RAIN LIGHT SNOW SLEET FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 300 PM LOWEST 45 1200 AM AVERAGE 69 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 41 64 1899 MINIMUM TEMPERATURE (F) 28 -10 1875 SUNRISE AND SUNSET DECEMBER 18 2021......SUNRISE 708 AM EST SUNSET 413 PM EST DECEMBER 19 2021......SUNRISE 709 AM EST SUNSET 414 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$