Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 180555
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
155 AM EDT TUE AUG 18 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 17 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 76 105 PM 97 1944 81 -5 92
MINIMUM 66 557 AM 51 1934 65 1 68
AVERAGE 71 73 -2 80
PRECIPITATION (IN)
YESTERDAY 0.05 1.92 1909 0.10 -0.05 T
MONTH TO DATE 0.52 1.85 -1.33 0.52
SINCE JUN 1 6.61 9.01 -2.40 4.85
SINCE JAN 1 17.10 26.66 -9.56 24.64
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 54 -40 44
SINCE JUL 1 0 4 -4 0
COOLING
YESTERDAY 6 8 -2 15
MONTH TO DATE 218 147 71 136
SINCE JUN 1 750 569 181 677
SINCE JAN 1 811 602 209 706
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 8.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1100 PM
LOWEST 70 100 AM
AVERAGE 85
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 2002
2009
MINIMUM TEMPERATURE (F) 65 53 1918
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 555 AM EDT SUNSET 741 PM EDT
AUGUST 19 2026........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.
$$