CDUS41 KBOX 192128 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 528 PM EDT TUE MAY 19 2026 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR MAY 19 2026... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1872 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 96R 200 PM 90 1949 67 29 64 1986 2017 MINIMUM 68 1224 AM 38 1882 51 17 50 AVERAGE 82 59 23 57 PRECIPITATION (IN) TODAY 0.00 1.55 1900 0.10 -0.10 0.00 MONTH TO DATE 0.79 1.92 -1.13 3.35 SINCE MAR 1 5.90 9.72 -3.82 10.58 SINCE JAN 1 9.19 16.32 -7.13 15.89 SNOWFALL (IN) TODAY 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 1.9 10.6 -8.7 T SINCE JUL 1 62.8 49.2 13.6 28.1 DEGREE DAYS HEATING TODAY 0 7 -7 8 MONTH TO DATE 126 168 -42 99 SINCE MAR 1 1341 1492 -151 1218 SINCE JUL 1 5468 5430 38 4977 COOLING TODAY 17 1 16 0 MONTH TO DATE 27 11 16 16 SINCE MAR 1 30 15 15 22 SINCE JAN 1 30 15 15 22 ................................................................... WIND (MPH) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 12.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 78 400 AM LOWEST 29 100 PM AVERAGE 54 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 91 1996 MINIMUM TEMPERATURE (F) 51 40 1892 SUNRISE AND SUNSET MAY 19 2026...........SUNRISE 519 AM EDT SUNSET 803 PM EDT MAY 20 2026...........SUNRISE 518 AM EDT SUNSET 804 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$