634 CDUS41 KBOX 160616 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 216 AM EDT SUN MAY 16 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR MAY 15 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 74 524 PM 93 1900 66 8 74 MINIMUM 61 439 AM 36 1947 50 11 51 AVERAGE 68 58 10 63 PRECIPITATION (IN) YESTERDAY 0.00 1.73 1978 0.09 -0.09 0.67 MONTH TO DATE 1.59 1.53 0.06 2.08 SINCE MAR 1 7.92 9.33 -1.41 10.01 SINCE JAN 1 12.99 15.93 -2.94 14.70 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 T SINCE MAR 1 0.2 10.6 -10.4 0.7 SINCE JUL 1 38.6 49.2 -10.6 15.8 DEGREE DAYS HEATING YESTERDAY 0 8 -8 2 MONTH TO DATE 111 140 -29 180 SINCE MAR 1 1235 1464 -229 1499 SINCE JUL 1 5012 5402 -390 4882 COOLING YESTERDAY 3 1 2 0 MONTH TO DATE 5 7 -2 1 SINCE MAR 1 5 11 -6 1 SINCE JAN 1 5 11 -6 1 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (160) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170) AVERAGE WIND SPEED 8.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 45 1200 PM LOWEST 29 600 PM AVERAGE 37 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 93 1932 MINIMUM TEMPERATURE (F) 50 34 1936 SUNRISE AND SUNSET MAY 16 2021...........SUNRISE 521 AM EDT SUNSET 800 PM EDT MAY 17 2021...........SUNRISE 520 AM EDT SUNSET 801 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$