National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2025-09-12 05:26 UTC
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358
CDUS41 KBOX 120526
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
126 AM EDT FRI SEP 12 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 11 2025...
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)
YESTERDAY
MAXIMUM 74 1226 PM 99 1983 75 -1 73
MINIMUM 55 540 AM 40 1917 60 -5 58
AVERAGE 65 67 -2 66
PRECIPITATION (IN)
YESTERDAY 0.00 5.63 1954 0.11 -0.11 0.00
MONTH TO DATE 1.43 1.17 0.26 T
SINCE SEP 1 1.43 1.17 0.26 T
SINCE JAN 1 26.38 29.21 -2.83 34.14
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 10 9 1 1
SINCE SEP 1 10 9 1 1
SINCE JUL 1 17 18 -1 3
COOLING
YESTERDAY 0 4 -4 1
MONTH TO DATE 32 52 -20 32
SINCE SEP 1 32 52 -20 32
SINCE JAN 1 789 752 37 842
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 100 AM
LOWEST 46 900 PM
AVERAGE 67
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1961
MINIMUM TEMPERATURE (F) 60 43 1875
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.
$$