Falmouth climate

Falmouth Weather in May

NOAA 1991-2020 normals for Edgartown, 20.2 km from Falmouth

Average highs run from 61°F on May 1 to 69°F on May 31, and lows from 44°F to 53°F. Normal precipitation for the month is 3.74 in over about 12 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 Falmouth, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
65°F
Average low
49°F
Precipitation
3.74 in
Record high
88°FMay 19, 2017
Record low
31°FMay 6, 2020
Chance of a freeze
13%
Daylight
14 h 01 min to 14 h 58 min
Cloud cover
63%
Humidity
85%
Dew point
49°F
Wind
13.0 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 161°F44°F72°F 202532°F 201639%0%
May 261°F45°F65°F 202132°F 201140%0%
May 361°F45°F80°F 201835°F 201339%0%
May 462°F45°F83°F 201833°F 202639%0%
May 562°F46°F78°F 201838°F 201339%0%
May 662°F46°F73°F 201531°F 202039%0%
May 763°F46°F73°F 202333°F 201939%0%
May 863°F46°F84°F 201534°F 201439%0%
May 963°F47°F79°F 201531°F 201739%0%
May 1063°F47°F71°F 201531°F 201639%0%
May 1164°F47°F79°F 201331°F 201639%0%
May 1264°F48°F78°F 202335°F 202439%0%
May 1364°F48°F84°F 201434°F 201339%0%
May 1464°F48°F77°F 201234°F 202039%0%
May 1565°F48°F80°F 202233°F 201339%0%
May 1665°F49°F77°F 202133°F 201339%0%
May 1765°F49°F79°F 202139°F 202039%0%
May 1865°F49°F84°F 202631°F 202339%0%
May 1966°F49°F88°F 201738°F 202338%0%
May 2066°F50°F86°F 201741°F 202038%0%
May 2166°F50°F86°F 202633°F 202038%0%
May 2267°F50°F80°F 201338°F 201738%0%
May 2367°F51°F87°F 202239°F 202338%0%
May 2467°F51°F87°F 202136°F 202338%0%
May 2567°F51°F81°F 202439°F 202238%0%
May 2668°F51°F78°F 201641°F 201338%0%
May 2768°F52°F86°F 201842°F 202337%0%
May 2868°F52°F84°F 201140°F 201337%0%
May 2968°F52°F79°F 201142°F 201437%0%
May 3069°F53°F82°F 201235°F 201437%0%
May 3169°F53°F84°F 201341°F 202337%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Falmouth, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 5:39 AM, sunset 7:40 PM
May 31
sunrise 5:11 AM, sunset 8:09 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00192501 (Edgartown), public domain. Records: NOAA GHCN-Daily, station USC00192372, 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.