587 CDUS41 KBOX 220537 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 137 AM EDT SAT MAY 22 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR MAY 21 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 82 307 PM 93 1921 68 14 77 MINIMUM 56 439 AM 41 1907 52 4 45 AVERAGE 69 60 9 61 PRECIPITATION (IN) YESTERDAY T 2.24 1889 0.10 -0.10 0.00 MONTH TO DATE 1.60 2.13 -0.53 2.12 SINCE MAR 1 7.93 9.93 -2.00 10.05 SINCE JAN 1 13.00 16.53 -3.53 14.74 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 6 -6 4 MONTH TO DATE 114 180 -66 238 SINCE MAR 1 1238 1504 -266 1557 SINCE JUL 1 5015 5442 -427 4940 COOLING YESTERDAY 4 1 3 0 MONTH TO DATE 20 13 7 1 SINCE MAR 1 20 17 3 1 SINCE JAN 1 20 17 3 1 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (210) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 10.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 75 1200 AM LOWEST 37 300 PM AVERAGE 56 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 93 1959 MINIMUM TEMPERATURE (F) 52 39 1894 SUNRISE AND SUNSET MAY 22 2021...........SUNRISE 516 AM EDT SUNSET 806 PM EDT MAY 23 2021...........SUNRISE 515 AM EDT SUNSET 807 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$