913
CDUS41 KBOX 192119
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
519 PM EDT FRI SEP 19 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 19 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 82 252 PM 92 1983 72 10 75
MINIMUM 65 516 AM 42 1929 57 8 62
AVERAGE 74 65 9 69
PRECIPITATION (IN)
TODAY 0.00 1.21 1936 0.12 -0.12 0.01
MONTH TO DATE 1.55 2.15 -0.60 0.01
SINCE SEP 1 1.55 2.15 -0.60 0.01
SINCE JAN 1 26.50 30.19 -3.69 34.15
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 3 -3 0
MONTH TO DATE 18 25 -7 1
SINCE SEP 1 18 25 -7 1
SINCE JUL 1 25 34 -9 3
COOLING
TODAY 9 2 7 4
MONTH TO DATE 47 74 -27 61
SINCE SEP 1 47 74 -27 61
SINCE JAN 1 804 774 30 871
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 11.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 500 AM
LOWEST 35 400 PM
AVERAGE 52
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 97 1983
MINIMUM TEMPERATURE (F) 57 42 1929
1964
1979
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 629 AM EDT SUNSET 646 PM EDT
SEPTEMBER 20 2025.....SUNRISE 630 AM EDT SUNSET 644 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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