606
CDUS41 KBOX 180853
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
453 AM EDT SUN MAY 18 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 17 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 76 543 PM 92 1977 67 9 65
2017
MINIMUM 61 549 AM 39 1882 51 10 52
AVERAGE 69 59 10 59
PRECIPITATION (IN)
YESTERDAY T 1.88 1916 0.09 -0.09 0.00
MONTH TO DATE 3.35 1.72 1.63 2.03
SINCE MAR 1 10.58 9.52 1.06 13.93
SINCE JAN 1 15.89 16.12 -0.23 22.22
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 MAR 1 T 10.6 -10.6 0.1
SINCE JUL 1 28.1 49.2 -21.1 9.8
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 6
MONTH TO DATE 91 154 -63 164
SINCE MAR 1 1210 1478 -268 1345
SINCE JUL 1 4969 5416 -447 4830
COOLING
YESTERDAY 4 1 3 0
MONTH TO DATE 16 9 7 0
SINCE MAR 1 22 13 9 0
SINCE JAN 1 22 13 9 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 71 600 PM
AVERAGE 82
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 95 2017
MINIMUM TEMPERATURE (F) 51 37 2002
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 520 AM EDT SUNSET 802 PM EDT
MAY 19 2025...........SUNRISE 519 AM EDT SUNSET 803 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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