784
CDUS41 KBOX 212124
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
424 PM EST SUN DEC 21 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 21 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 47 109 PM 65 2018 41 6 29
MINIMUM 36 1200 AM -5 1942 28 8 17
AVERAGE 42 34 8 23
PRECIPITATION (IN)
TODAY 0.00 1.91 1946 0.15 -0.15 0.00
MONTH TO DATE 1.28 3.01 -1.73 5.01
SINCE DEC 1 1.28 3.01 -1.73 5.01
SINCE JAN 1 36.03 42.30 -6.27 44.75
SNOWFALL (IN)
TODAY 0.0 10.1 1975 0.4 -0.4 0.0
MONTH TO DATE 1.3 5.3 -4.0 5.5
SINCE DEC 1 1.3 5.3 -4.0 5.5
SINCE JUL 1 1.3 6.2 -4.9 5.5
DEGREE DAYS
HEATING
TODAY 23 31 -8 42
MONTH TO DATE 677 589 88 599
SINCE DEC 1 677 589 88 599
SINCE JUL 1 1614 1603 11 1382
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 28 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 17.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 1200 AM
LOWEST 34 300 PM
AVERAGE 57
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 62 1990
MINIMUM TEMPERATURE (F) 28 1 1879
1883
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 710 AM EST SUNSET 415 PM EST
DECEMBER 22 2025......SUNRISE 711 AM EST SUNSET 415 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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