137
CDUS41 KBOX 122129
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
529 PM EDT TUE MAY 12 2026
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 12 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 64 348 PM 88 1991 65 -1 75
2001
MINIMUM 48 536 AM 33 1907 49 -1 46
AVERAGE 56 57 -1 61
PRECIPITATION (IN)
TODAY 0.00 1.42 1888 0.09 -0.09 0.00
MONTH TO DATE 0.58 1.24 -0.66 3.00
SINCE MAR 1 5.69 9.04 -3.35 10.23
SINCE JAN 1 8.98 15.64 -6.66 15.54
SNOWFALL (IN)
TODAY 0.0 0.0 2000 0.0 0.0 0.0
2001
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.9 10.6 -8.7 T
SINCE JUL 1 62.8 49.2 13.6 28.1
DEGREE DAYS
HEATING
TODAY 9 8 1 4
MONTH TO DATE 96 116 -20 72
SINCE MAR 1 1311 1440 -129 1191
SINCE JUL 1 5438 5378 60 4950
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 4 -4 6
SINCE MAR 1 3 8 -5 12
SINCE JAN 1 3 8 -5 12
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 8.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 57 200 PM
LOWEST 23 400 PM
AVERAGE 40
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 87 1947
MINIMUM TEMPERATURE (F) 50 37 2020
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 526 AM EDT SUNSET 756 PM EDT
MAY 13 2026...........SUNRISE 525 AM EDT SUNSET 757 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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