Climatological Report (Daily)
Issued by NWS Boston, MA

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607
CDUS41 KBOX 202130
CLIBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
530 PM EDT MON JUL 20 2026

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

...THE BOSTON MA CLIMATE SUMMARY FOR JULY 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         82    115 PM  99    1991  83     -1       87
  MINIMUM         64    514 AM  54    1879  67     -3       70
                                      1890
  AVERAGE         73                        74     -1       79

PRECIPITATION (IN)
  TODAY            0.00          1.78 1982   0.11  -0.11     0.20
  MONTH TO DATE    1.82                      2.08  -0.26     2.11
  SINCE JUN 1      3.28                      5.97  -2.69     3.43
  SINCE JAN 1     13.77                     23.62  -9.85    23.22

SNOWFALL (IN)
  TODAY            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 JUN 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1     14                        50    -36       44
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY            8                        10     -2       14
  MONTH TO DATE  247                       181     66      234
  SINCE JUN 1    471                       319    152      424
  SINCE JAN 1    532                       352    180      453
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     7.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    56           400 AM
 LOWEST     30          1200 PM
 AVERAGE    43

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


THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       102      1977
 MINIMUM TEMPERATURE (F)   67        52      1890


SUNRISE AND SUNSET
JULY 20 2026..........SUNRISE   525 AM EDT   SUNSET   815 PM EDT
JULY 21 2026..........SUNRISE   526 AM EDT   SUNSET   815 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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