711
CDUS41 KBOX 200530
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1230 AM EST SAT DEC 20 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 19 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 59 258 PM 64 1899 41 18 45
MINIMUM 36 1159 PM -10 1875 28 8 32
AVERAGE 48 35 13 39
PRECIPITATION (IN)
YESTERDAY 0.46 1.35 1986 0.15 0.31 0.12
MONTH TO DATE 1.28 2.73 -1.45 4.50
SINCE DEC 1 1.28 2.73 -1.45 4.50
SINCE JAN 1 36.03 42.02 -5.99 44.24
SNOWFALL (IN)
YESTERDAY 0.0 10.0 1945 0.3 -0.3 0.0
MONTH TO DATE 1.3 4.6 -3.3 0.3
SINCE DEC 1 1.3 4.6 -3.3 0.3
SINCE JUL 1 1.3 5.5 -4.2 0.3
DEGREE DAYS
HEATING
YESTERDAY 17 30 -13 26
MONTH TO DATE 624 528 96 524
SINCE DEC 1 624 528 96 524
SINCE JUL 1 1561 1542 19 1307
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 13 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 46 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 64 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 18.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1100 AM
LOWEST 54 1100 PM
AVERAGE 76
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 63 1957
MINIMUM TEMPERATURE (F) 28 -11 1875
1942
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 710 AM EST SUNSET 414 PM EST
DECEMBER 21 2025......SUNRISE 710 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page