342
CDUS41 KBOX 172147
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
547 PM EDT SUN MAY 17 2026
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 17 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 90 359 PM 92 1977 67 23 76
2017
MINIMUM 59 353 AM 39 1882 51 8 61
AVERAGE 75 59 16 69
PRECIPITATION (IN)
TODAY 0.02 1.88 1916 0.09 -0.07 T
MONTH TO DATE 0.79 1.72 -0.93 3.35
SINCE MAR 1 5.90 9.52 -3.62 10.58
SINCE JAN 1 9.19 16.12 -6.93 15.89
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 MAR 1 1.9 10.6 -8.7 T
SINCE JUL 1 62.8 49.2 13.6 28.1
DEGREE DAYS
HEATING
TODAY 0 7 -7 0
MONTH TO DATE 126 154 -28 91
SINCE MAR 1 1341 1478 -137 1210
SINCE JUL 1 5468 5416 52 4969
COOLING
TODAY 10 1 9 4
MONTH TO DATE 10 9 1 16
SINCE MAR 1 13 13 0 22
SINCE JAN 1 13 13 0 22
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 300 AM
LOWEST 28 400 PM
AVERAGE 54
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 95 2017
MINIMUM TEMPERATURE (F) 51 37 2002
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 521 AM EDT SUNSET 801 PM EDT
MAY 18 2026...........SUNRISE 520 AM EDT SUNSET 802 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page