612
CDUS41 KBOX 182124
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
524 PM EDT THU SEP 18 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 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 74 219 PM 90 1891 72 2 72
1906
1955
MINIMUM 62 624 AM 43 1875 58 4 60
AVERAGE 68 65 3 66
PRECIPITATION (IN)
TODAY 0.11 2.87 2004 0.13 -0.02 0.00
MONTH TO DATE 1.55 2.03 -0.48 T
SINCE SEP 1 1.55 2.03 -0.48 T
SINCE JAN 1 26.50 30.07 -3.57 34.14
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 2 -2 0
MONTH TO DATE 18 22 -4 1
SINCE SEP 1 18 22 -4 1
SINCE JUL 1 25 31 -6 3
COOLING
TODAY 3 2 1 1
MONTH TO DATE 38 72 -34 57
SINCE SEP 1 38 72 -34 57
SINCE JAN 1 795 772 23 867
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 6.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 AM
LOWEST 73 200 PM
AVERAGE 85
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1983
MINIMUM TEMPERATURE (F) 57 42 1929
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 627 AM EDT SUNSET 648 PM EDT
SEPTEMBER 19 2025.....SUNRISE 629 AM EDT SUNSET 646 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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