Nantucket weather in May: Nantucket, Massachusetts: normal highs, lows, rain and records for May
Nantucket in May has a normal high of 61°F and a normal low of 47°F, a daily mean of 54°F, rising from 57°F on the 1st to 64°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 2.98 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 16°C and low of 8°C, 76 mm of precipitation in May.
- NOAA stationNantucket Mem Airport
- Station IDUSW00014756
- Location41.25°N 70.06°W
- Elevation45 ft (14 m)
- From the center2 miles
- Population (town)14,670
- Census place10,837
- Jan 40° 27°
- Feb 40° 27°
- Mar 44° 32°
- Apr 52° 39°
- May 61° 47°
- Jun 69° 56°
- Jul 75° 63°
- Aug 76° 62°
- Sep 70° 57°
- Oct 62° 49°
- Nov 53° 40°
- Dec 45° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Nantucket in May?
The normal high is 61°F and the normal low 47°F, for a daily mean of 53.8°F. May is 8.3°F warmer than April and 8.4°F cooler than June. May is the 6th warmest month of the year in Nantucket and the 10th wettest. Across the month the normal high rises 7°F, from 57°F on May 1 to 64°F on May 31. From one year to the next May's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 52°F and 56°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 57°F | 43°F | 39% | 22% |
| May 8 | 59°F | 45°F | 39% | 21% |
| May 15 | 61°F | 47°F | 38% | 20% |
| May 22 | 62°F | 49°F | 38% | 20% |
| May 31 | 64°F | 51°F | 38% | 19% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 57°F | 43°F | 39% | 22% | 14 h |
| May 2 | 57°F | 43°F | 39% | 22% | 14 h |
| May 3 | 58°F | 44°F | 39% | 22% | 14 h |
| May 4 | 58°F | 44°F | 39% | 21% | 14 h |
| May 5 | 58°F | 44°F | 39% | 21% | 14 h 10 min |
| May 6 | 58°F | 44°F | 39% | 21% | 14 h 10 min |
| May 7 | 59°F | 45°F | 39% | 21% | 14 h 10 min |
| May 8 | 59°F | 45°F | 39% | 21% | 14 h 10 min |
| May 9 | 59°F | 45°F | 39% | 21% | 14 h 20 min |
| May 10 | 59°F | 45°F | 39% | 21% | 14 h 20 min |
| May 11 | 60°F | 46°F | 39% | 21% | 14 h 20 min |
| May 12 | 60°F | 46°F | 39% | 21% | 14 h 20 min |
| May 13 | 60°F | 46°F | 39% | 20% | 14 h 20 min |
| May 14 | 60°F | 46°F | 38% | 20% | 14 h 30 min |
| May 15 | 61°F | 47°F | 38% | 20% | 14 h 30 min |
| May 16 | 61°F | 47°F | 38% | 20% | 14 h 30 min |
| May 17 | 61°F | 47°F | 38% | 20% | 14 h 30 min |
| May 18 | 61°F | 48°F | 38% | 20% | 14 h 30 min |
| May 19 | 61°F | 48°F | 38% | 20% | 14 h 40 min |
| May 20 | 62°F | 48°F | 38% | 20% | 14 h 40 min |
| May 21 | 62°F | 48°F | 38% | 20% | 14 h 40 min |
| May 22 | 62°F | 49°F | 38% | 20% | 14 h 40 min |
| May 23 | 62°F | 49°F | 38% | 20% | 14 h 40 min |
| May 24 | 63°F | 49°F | 38% | 19% | 14 h 40 min |
| May 25 | 63°F | 49°F | 38% | 19% | 14 h 50 min |
| May 26 | 63°F | 50°F | 38% | 19% | 14 h 50 min |
| May 27 | 63°F | 50°F | 38% | 19% | 14 h 50 min |
| May 28 | 64°F | 50°F | 38% | 19% | 14 h 50 min |
| May 29 | 64°F | 51°F | 38% | 19% | 14 h 50 min |
| May 30 | 64°F | 51°F | 38% | 19% | 14 h 50 min |
| May 31 | 64°F | 51°F | 38% | 19% | 14 h 50 min |
- Normal high
- 61°FMay average
- Normal low
- 47°FMay average
- Precipitation
- 2.98 inmonth total
- Days with precipitation
- 120.01 inch or more
- Daylight
- 14 h to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 3
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014756; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Nantucket in May?
On a given May day the chance of 0.01 inch or more is 38% on average, highest around May 1 (39%). In all, 2.98 in falls on 12 days of a normal May, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014756.
What are the records for May in Nantucket?
The warmest May temperature on this station's record (since 1948) is 85°F, on May 25, 2007; the coldest is 28°F, on May 27, 1972. The wettest May brought 10.38 in (1967).
The May mean against the 1991-2020 normal of 53.8°F: 2021 55.6°F (+1.8), 2022 56.6°F (+2.8), 2023 54.5°F (+0.7), 2024 53.9°F (+0.1), 2025 55.8°F (+2.0), 2026 54.7°F (+0.9). 6 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 55.6°F | +1.8°F | 3.87 in |
| 2022 | 56.6°F | +2.8°F | 4.07 in |
| 2023 | 54.5°F | +0.7°F | 0.90 in |
| 2024 | 53.9°F | +0.1°F | 1.83 in |
| 2025 | 55.8°F | +2.0°F | 3.00 in |
| 2026 | 54.7°F | +0.9°F | 0.52 in |
Source: records: ACIS, station USW00014756; recent months: ACIS, station USW00014756. Records and recent months use complete months only.
How does May in Nantucket compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, May normal highs run from 61°F in Nantucket to 73°F in Maynard; Nantucket's is 61°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.