Boothbay climate

Boothbay Weather in May

NOAA 1991-2020 normals for Westport Island, 6.1 km from Boothbay

Average highs run from 58°F on May 1 to 66°F on May 31, and lows from 40°F to 49°F. Normal precipitation for the month is 3.60 in over about 15 wet days.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Boothbay, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
63°F
Average low
44°F
Precipitation
3.60 in
Record high
94°FMay 25, 2007
Record low
27°FMay 1, 2000
Chance of a freeze
38%
Daylight
14 h 12 min to 15 h 13 min
Cloud cover
68%
Humidity
84%
Dew point
45°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 158°F40°F77°F 201027°F 200042%
May 259°F40°F89°F 200129°F 200242%
May 359°F40°F89°F 200127°F 200043%
May 459°F40°F85°F 200128°F 200343%
May 560°F41°F79°F 200029°F 199743%
May 660°F41°F77°F 202330°F 200544%
May 760°F41°F83°F 201528°F 200144%
May 861°F42°F78°F 200029°F 200445%
May 961°F42°F80°F 200728°F 199745%
May 1061°F42°F83°F 200729°F 201046%
May 1162°F43°F83°F 200427°F 201046%
May 1262°F43°F79°F 202330°F 199946%
May 1362°F43°F72°F 202327°F 200547%
May 1462°F44°F86°F 202230°F 200747%
May 1563°F44°F83°F 200432°F 201348%
May 1663°F44°F77°F 201332°F 199948%
May 1763°F44°F85°F 202633°F 200349%
May 1863°F45°F92°F 201729°F 202349%
May 1963°F45°F91°F 202631°F 200249%
May 2064°F45°F91°F 202627°F 200249%
May 2164°F46°F85°F 200930°F 200249%
May 2264°F46°F86°F 200931°F 200250%0%
May 2364°F46°F83°F 202135°F 200250%0%
May 2464°F47°F81°F 201532°F 202050%0%
May 2565°F47°F94°F 200735°F 202050%0%
May 2665°F47°F91°F 201034°F 200950%0%
May 2765°F48°F86°F 202634°F 199750%0%
May 2865°F48°F88°F 201634°F 199750%0%
May 2966°F48°F86°F 200634°F 201451%0%
May 3066°F48°F86°F 201135°F 200051%0%
May 3166°F49°F90°F 201334°F 200451%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Boothbay, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 5:30 AM, sunset 7:42 PM
May 31
sunrise 5:00 AM, sunset 8:13 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00179547 (Westport Island), public domain. Records: NOAA GHCN-Daily, station USW00094623, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.