517
CDUS41 KBOX 302131
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
531 PM EDT TUE SEP 30 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 30 2025
VALID TODAY AS OF 0500 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 72 1107 AM 87 1986 68 4 68
MINIMUM 62 202 AM 36 1888 53 9 54
AVERAGE 67 60 7 61
PRECIPITATION (IN)
TODAY 0.00 2.46 2015 0.13 -0.13 0.00
MONTH TO DATE 3.09 3.56 -0.47 1.33
SINCE SEP 1 3.09 3.56 -0.47 1.33
SINCE JAN 1 28.04 31.60 -3.56 35.47
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 SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
DEGREE DAYS
HEATING
TODAY 0 6 -6 4
MONTH TO DATE 32 71 -39 35
SINCE SEP 1 32 71 -39 35
SINCE JUL 1 39 80 -41 37
COOLING
TODAY 2 1 1 0
MONTH TO DATE 87 91 -4 67
SINCE SEP 1 87 91 -4 67
SINCE JAN 1 844 791 53 877
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 400 PM
LOWEST 51 800 AM
AVERAGE 63
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 90 1881
MINIMUM TEMPERATURE (F) 53 36 1992
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 640 AM EDT SUNSET 627 PM EDT
OCTOBER 1 2025.......SUNRISE 641 AM EDT SUNSET 625 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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