586
CDUS41 KBOX 160527
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1227 AM EST TUE DEC 16 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 15 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 25 1159 PM 66 1975 42 -17 36
MINIMUM 14 555 AM -2 1874 29 -15 21
AVERAGE 20 36 -16 29
PRECIPITATION (IN)
YESTERDAY 0.00 1.51 1981 0.14 -0.14 0.00
MONTH TO DATE 0.82 2.16 -1.34 3.63
SINCE DEC 1 0.82 2.16 -1.34 3.63
SINCE JAN 1 35.57 41.45 -5.88 43.37
SNOWFALL (IN)
YESTERDAY 0.0 6.1 1916 0.3 -0.3 0.0
MONTH TO DATE 1.3 3.4 -2.1 0.3
SINCE DEC 1 1.3 3.4 -2.1 0.3
SINCE JUL 1 1.3 4.3 -3.0 0.3
DEGREE DAYS
HEATING
YESTERDAY 45 29 16 36
MONTH TO DATE 519 409 110 439
SINCE DEC 1 519 409 110 439
SINCE JUL 1 1456 1423 33 1222
COOLING
YESTERDAY 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)
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 16.1
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 58 500 AM
LOWEST 38 200 PM
AVERAGE 48
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 64 1971
MINIMUM TEMPERATURE (F) 29 1 1876
1883
SUNRISE AND SUNSET
DECEMBER 16 2025......SUNRISE 707 AM EST SUNSET 413 PM EST
DECEMBER 17 2025......SUNRISE 708 AM EST SUNSET 413 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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