Climatological Report (Daily)
Issued by NWS Boston, MA

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CDUS41 KBOX 170826
CLIBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
426 AM EDT THU SEP 17 2026

...................................

...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 16 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         80    327 PM  96    1939  73      7       68
  MINIMUM         56    336 AM  42    1984  58     -2       57
  AVERAGE         68                        66      2       63

PRECIPITATION (IN)
  YESTERDAY        0.00          5.63 1933   0.13  -0.13     0.00
  MONTH TO DATE    1.70                      1.77  -0.07     1.43
  SINCE SEP 1      1.70                      1.77  -0.07     1.43
  SINCE JAN 1     19.26                     29.81 -10.55    26.38

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                         2     -2        2
  MONTH TO DATE    7                        18    -11       16
  SINCE SEP 1      7                        18    -11       16
  SINCE JUL 1      7                        27    -20       23

 COOLING
  YESTERDAY        3                         3      0        0
  MONTH TO DATE   66                        67     -1       35
  SINCE SEP 1     66                        67     -1       35
  SINCE JAN 1    983                       767    216      792
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     8.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           400 AM
 LOWEST     48           100 PM
 AVERAGE    69

..........................................................


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        91      1915
 MINIMUM TEMPERATURE (F)   58        44      2013


SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE   626 AM EDT   SUNSET   650 PM EDT
SEPTEMBER 18 2026.....SUNRISE   627 AM EDT   SUNSET   648 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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