National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2025-09-22 06:13 UTC
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018
CDUS41 KBOX 220613
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
213 AM EDT MON SEP 22 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 21 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 66 312 PM 94 1895 71 -5 60
MINIMUM 51 627 AM 40 1904 56 -5 57
1929
AVERAGE 59 64 -5 59
PRECIPITATION (IN)
YESTERDAY 0.00 2.77 1961 0.13 -0.13 0.90
MONTH TO DATE 1.55 2.41 -0.86 0.96
SINCE SEP 1 1.55 2.41 -0.86 0.96
SINCE JAN 1 26.50 30.45 -3.95 35.10
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 6 3 3 6
MONTH TO DATE 29 31 -2 10
SINCE SEP 1 29 31 -2 10
SINCE JUL 1 36 40 -4 12
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 45 78 -33 61
SINCE SEP 1 45 78 -33 61
SINCE JAN 1 802 778 24 871
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 6.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 600 AM
LOWEST 56 400 PM
AVERAGE 70
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 94 1895
MINIMUM TEMPERATURE (F) 56 35 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.
$$