Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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073
CDUS41 KBOX 220529
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
129 AM EDT TUE SEP 22 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 21 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 65 114 PM 94 1895 71 -6 66
MINIMUM 55 708 AM 40 1904 56 -1 51
1929
AVERAGE 60 64 -4 59
PRECIPITATION (IN)
YESTERDAY 0.01 2.77 1961 0.13 -0.12 0.00
MONTH TO DATE 1.81 2.41 -0.60 1.55
SINCE SEP 1 1.81 2.41 -0.60 1.55
SINCE JAN 1 19.37 30.45 -11.08 26.50
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 5 3 2 6
MONTH TO DATE 25 31 -6 29
SINCE SEP 1 25 31 -6 29
SINCE JUL 1 25 40 -15 36
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 77 78 -1 45
SINCE SEP 1 77 78 -1 45
SINCE JAN 1 994 778 216 802
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 10.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 200 AM
LOWEST 60 1100 AM
AVERAGE 79
..........................................................
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 2026.....SUNRISE 631 AM EDT SUNSET 641 PM EDT
SEPTEMBER 23 2026.....SUNRISE 633 AM EDT SUNSET 640 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$