676
CDUS41 KBOX 182126
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
426 PM EST THU DEC 18 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 18 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 48 208 PM 63 2023 42 6 50
MINIMUM 29 720 AM -6 1919 29 0 38
AVERAGE 39 35 4 44
PRECIPITATION (IN)
TODAY 0.00 1.68 2023 0.14 -0.14 0.58
MONTH TO DATE 0.82 2.58 -1.76 4.38
SINCE DEC 1 0.82 2.58 -1.76 4.38
SINCE JAN 1 35.57 41.87 -6.30 44.12
SNOWFALL (IN)
TODAY 0.0 4.0 1904 0.3 -0.3 0.0
MONTH TO DATE 1.3 4.3 -3.0 0.3
SINCE DEC 1 1.3 4.3 -3.0 0.3
SINCE JUL 1 1.3 5.2 -3.9 0.3
DEGREE DAYS
HEATING
TODAY 26 30 -4 21
MONTH TO DATE 607 498 109 498
SINCE DEC 1 607 498 109 498
SINCE JUL 1 1544 1512 32 1281
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 865 800 65 891
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 7.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 700 AM
LOWEST 48 100 PM
AVERAGE 67
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 64 1899
MINIMUM TEMPERATURE (F) 28 -10 1875
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 708 AM EST SUNSET 413 PM EST
DECEMBER 19 2025......SUNRISE 709 AM EST SUNSET 414 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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