229
CDUS41 KBOX 122140
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
540 PM EDT FRI SEP 12 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 12 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 1127 AM 93 1961 75 -7 81
MINIMUM 59 606 AM 43 1875 60 -1 58
AVERAGE 64 67 -3 70
PRECIPITATION (IN)
TODAY 0.00 2.95 1960 0.11 -0.11 0.00
MONTH TO DATE 1.43 1.28 0.15 T
SINCE SEP 1 1.43 1.28 0.15 T
SINCE JAN 1 26.38 29.32 -2.94 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 1 1 0 0
MONTH TO DATE 11 10 1 1
SINCE SEP 1 11 10 1 1
SINCE JUL 1 18 19 -1 3
COOLING
TODAY 0 3 -3 5
MONTH TO DATE 32 55 -23 37
SINCE SEP 1 32 55 -23 37
SINCE JAN 1 789 755 34 847
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 10.9
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 70 400 PM
LOWEST 60 200 AM
AVERAGE 65
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 93 1957
MINIMUM TEMPERATURE (F) 59 45 1911
1985
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 621 AM EDT SUNSET 659 PM EDT
SEPTEMBER 13 2025.....SUNRISE 622 AM EDT SUNSET 657 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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