341 CDUS41 KBOX 220523 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 123 AM EDT THU MAY 22 2025 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR MAY 21 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1872 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 50 1257 PM 93 1921 68 -18 84 MINIMUM 47 622 PM 41 1907 52 -5 53 AVERAGE 49 60 -11 69 PRECIPITATION (IN) YESTERDAY T 2.24 1889 0.10 -0.10 0.00 MONTH TO DATE 3.35 2.13 1.22 2.72 SINCE MAR 1 10.58 9.93 0.65 14.62 SINCE JAN 1 15.89 16.53 -0.64 22.91 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 0.0 SINCE MAR 1 T 10.6 -10.6 0.1 SINCE JUL 1 28.1 49.2 -21.1 9.8 DEGREE DAYS HEATING YESTERDAY 16 6 10 0 MONTH TO DATE 127 180 -53 192 SINCE MAR 1 1246 1504 -258 1373 SINCE JUL 1 5005 5442 -437 4858 COOLING YESTERDAY 0 1 -1 4 MONTH TO DATE 16 13 3 4 SINCE MAR 1 22 17 5 4 SINCE JAN 1 22 17 5 4 ................................................................... WIND (MPH) RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (70) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 14.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 83 1200 AM LOWEST 66 900 AM AVERAGE 75 .......................................................... 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 2025...........SUNRISE 516 AM EDT SUNSET 806 PM EDT MAY 23 2025...........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. $$