Climatological Report (Daily)
Issued by NWS Boston, MA

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298
CDUS41 KBOX 190539
CLIBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
139 AM EDT SAT SEP 19 2026

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

...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 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    158 PM  90    1891  72      8       74
                                      1906
                                      1955
  MINIMUM         62   1159 PM  43    1875  58      4       62
  AVERAGE         71                        65      6       68

PRECIPITATION (IN)
  YESTERDAY        T             2.87 2004   0.13  -0.13     0.11
  MONTH TO DATE    1.70                      2.03  -0.33     1.55
  SINCE SEP 1      1.70                      2.03  -0.33     1.55
  SINCE JAN 1     19.26                     30.07 -10.81    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        0                         2     -2        0
  MONTH TO DATE    7                        22    -15       18
  SINCE SEP 1      7                        22    -15       18
  SINCE JUL 1      7                        31    -24       25

 COOLING
  YESTERDAY        6                         2      4        3
  MONTH TO DATE   77                        72      5       38
  SINCE SEP 1     77                        72      5       38
  SINCE JAN 1    994                       772    222      795
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     37           500 PM
 AVERAGE    65

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        92      1983
 MINIMUM TEMPERATURE (F)   57        42      1929


SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE   628 AM EDT   SUNSET   647 PM EDT
SEPTEMBER 20 2026.....SUNRISE   629 AM EDT   SUNSET   645 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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