Climatological Report (Daily)
Issued by NWS Boston, MA

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063
CDUS41 KBOX 200856
CLIBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
456 AM EDT MON JUL 20 2026

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

...THE BOSTON MA CLIMATE SUMMARY FOR JULY 19 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         81    447 PM  99    2013  83     -2       87
  MINIMUM         69   1159 PM  54    1875  67      2       65
                                      1881
  AVERAGE         75                        74      1       76

PRECIPITATION (IN)
  YESTERDAY        T             1.68 1882   0.11  -0.11     0.00
  MONTH TO DATE    1.82                      1.97  -0.15     1.91
  SINCE JUN 1      3.28                      5.86  -2.58     3.23
  SINCE JAN 1     13.77                     23.51  -9.74    23.02

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 JUN 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                         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
  YESTERDAY       10                        10      0       11
  MONTH TO DATE  239                       171     68      220
  SINCE JUN 1    463                       309    154      410
  SINCE JAN 1    524                       342    182      439
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    13.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91          1200 AM
 LOWEST     25           600 PM
 AVERAGE    58

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


THE BOSTON MA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        99      1991
 MINIMUM TEMPERATURE (F)   67        54      1879
                                             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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