Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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930
CDUS41 KBOX 190549
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
149 AM EDT TUE AUG 19 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 18 2025...
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)
YESTERDAY
MAXIMUM 68 1223 AM 95 2002 80 -12 69
2009
MINIMUM 60 936 PM 53 1918 65 -5 65
AVERAGE 64 73 -9 67
PRECIPITATION (IN)
YESTERDAY 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)
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 1 0 1 0
MONTH TO DATE 1 0 1 1
SINCE JUN 1 45 54 -9 8
SINCE JUL 1 1 4 -3 1
COOLING
YESTERDAY 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)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1200 AM
LOWEST 47 1100 AM
AVERAGE 67
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 2019
MINIMUM TEMPERATURE (F) 65 51 1882
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 556 AM EDT SUNSET 739 PM EDT
AUGUST 20 2025........SUNRISE 557 AM EDT SUNSET 737 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$