Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 222124
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
524 PM EDT MON SEP 22 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 22 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 68 324 PM 94 1895 71 -3 66
MINIMUM 54 607 AM 35 1904 56 -2 57
AVERAGE 61 64 -3 62
PRECIPITATION (IN)
TODAY 0.00 1.88 1998 0.13 -0.13 0.01
MONTH TO DATE 1.55 2.54 -0.99 0.97
SINCE SEP 1 1.55 2.54 -0.99 0.97
SINCE JAN 1 26.50 30.58 -4.08 35.11
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 4 3 1 3
MONTH TO DATE 33 34 -1 13
SINCE SEP 1 33 34 -1 13
SINCE JUL 1 40 43 -3 15
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 45 80 -35 61
SINCE SEP 1 45 80 -35 61
SINCE JAN 1 802 780 22 871
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.1
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 86 500 AM
LOWEST 68 100 PM
AVERAGE 77
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 96 1895
MINIMUM TEMPERATURE (F) 56 35 1875
1904
SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE 632 AM EDT SUNSET 641 PM EDT
SEPTEMBER 23 2025.....SUNRISE 633 AM EDT SUNSET 639 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$