Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 182149
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
549 PM EDT MON AUG 18 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 18 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 68 1223 AM 95 2002 80 -12 69
2009
MINIMUM 62 657 AM 53 1918 65 -3 65
AVERAGE 65 73 -8 67
PRECIPITATION (IN)
TODAY T 4.88 1955 0.10 -0.10 0.03
MONTH TO DATE 0.52 1.95 -1.43 3.58
SINCE JUN 1 4.85 9.11 -4.26 9.01
SINCE JAN 1 24.64 26.76 -2.12 34.02
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 1
SINCE JUN 1 44 54 -10 8
SINCE JUL 1 0 4 -4 1
COOLING
TODAY 0 8 -8 2
MONTH TO DATE 136 155 -19 164
SINCE JUN 1 677 577 100 702
SINCE JAN 1 706 610 96 748
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 16.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1200 AM
LOWEST 47 1100 AM
AVERAGE 67
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 2019
MINIMUM TEMPERATURE (F) 65 51 1882
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 555 AM EDT SUNSET 740 PM EDT
AUGUST 19 2025........SUNRISE 556 AM EDT SUNSET 739 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$