Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 120531
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
131 AM EDT WED AUG 12 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 11 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 89 317 PM 99 1944 81 8 90
MINIMUM 74 540 AM 54 1879 66 8 70
AVERAGE 82 74 8 80
PRECIPITATION (IN)
YESTERDAY 0.00 2.80 1990 0.11 -0.11 0.00
MONTH TO DATE 0.47 1.22 -0.75 0.28
SINCE JUN 1 6.56 8.38 -1.82 4.61
SINCE JAN 1 17.05 26.03 -8.98 24.40
SNOWFALL (IN)
YESTERDAY 0.0 T 1954 0.0 0.0 0.0
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 17 9 8 15
MONTH TO DATE 162 99 63 64
SINCE JUN 1 694 521 173 605
SINCE JAN 1 755 554 201 634
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 9.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 300 AM
LOWEST 36 300 PM
AVERAGE 56
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 101 1944
MINIMUM TEMPERATURE (F) 66 53 1930
SUNRISE AND SUNSET
AUGUST 12 2026........SUNRISE 548 AM EDT SUNSET 749 PM EDT
AUGUST 13 2026........SUNRISE 549 AM EDT SUNSET 748 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$