457 CDUS41 KBOX 120623 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 223 AM EDT WED MAY 12 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR MAY 11 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 66 MM 91 1993 65 1 62 MINIMUM 51 MM 33 1900 49 2 44 AVERAGE 59 57 2 53 PRECIPITATION (IN) YESTERDAY 0.00 1.42 1989 0.10 -0.10 0.23 MONTH TO DATE 1.59 1.15 0.44 1.41 SINCE MAR 1 7.92 8.95 -1.03 9.34 SINCE JAN 1 12.99 15.55 -2.56 14.03 SNOWFALL (IN) YESTERDAY 0.0 T 1945 0.0 0.0 0.0 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 6 8 -2 12 MONTH TO DATE 101 108 -7 138 SINCE MAR 1 1225 1432 -207 1457 SINCE JUL 1 5002 5370 -368 4840 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 0 3 -3 1 SINCE MAR 1 0 7 -7 1 SINCE JAN 1 0 7 -7 1 ................................................................... WIND (MPH) RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION W (270) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 14.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 62 1200 AM LOWEST 20 500 PM AVERAGE 41 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 65 88 1991 2001 MINIMUM TEMPERATURE (F) 49 33 1907 SUNRISE AND SUNSET MAY 12 2021...........SUNRISE 526 AM EDT SUNSET 756 PM EDT MAY 13 2021...........SUNRISE 525 AM EDT SUNSET 757 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$