Wilmington weather in May: Wilmington, Ohio: normal highs, lows, rain and records for May
Wilmington in May has a normal high of 73°F and a normal low of 52°F, a daily mean of 63°F, rising from 69°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 14 days in a normal May, 4.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 11°C, 118 mm of precipitation in May.
- NOAA stationWilmington Air Park
- Station IDUSW00013841
- Location39.42°N 83.82°W
- Elevation1,056 ft (322 m)
- Population12,639
- Jan 37° 21°
- Feb 41° 24°
- Mar 51° 32°
- Apr 64° 42°
- May 73° 52°
- Jun 82° 60°
- Jul 84° 63°
- Aug 83° 61°
- Sep 77° 54°
- Oct 65° 44°
- Nov 52° 34°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Wilmington in May?
The normal high is 73°F and the normal low 52°F, for a daily mean of 62.5°F. May is 9.8°F warmer than April and 8.4°F cooler than June. May is the 5th warmest month of the year in Wilmington and the 2nd wettest. Across the month the normal high rises 9°F, from 69°F on May 1 to 78°F on May 31. From one year to the next May's mean temperature typically moves about 3.6°F either way (NOAA's standard deviation), so roughly two Mays in three average between 59°F and 66°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 46%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 69°F | 47°F | 46% | 29% |
| May 8 | 71°F | 50°F | 46% | 29% |
| May 15 | 73°F | 52°F | 45% | 28% |
| May 22 | 75°F | 54°F | 44% | 28% |
| May 31 | 78°F | 57°F | 43% | 28% |
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 | 69°F | 47°F | 46% | 29% | 13 h 50 min |
| May 2 | 69°F | 48°F | 46% | 29% | 13 h 50 min |
| May 3 | 69°F | 48°F | 46% | 29% | 13 h 50 min |
| May 4 | 70°F | 48°F | 46% | 29% | 14 h |
| May 5 | 70°F | 49°F | 46% | 29% | 14 h |
| May 6 | 70°F | 49°F | 46% | 29% | 14 h |
| May 7 | 70°F | 49°F | 46% | 29% | 14 h |
| May 8 | 71°F | 50°F | 46% | 29% | 14 h |
| May 9 | 71°F | 50°F | 46% | 29% | 14 h 10 min |
| May 10 | 71°F | 50°F | 46% | 29% | 14 h 10 min |
| May 11 | 71°F | 51°F | 45% | 29% | 14 h 10 min |
| May 12 | 72°F | 51°F | 45% | 29% | 14 h 10 min |
| May 13 | 72°F | 51°F | 45% | 29% | 14 h 10 min |
| May 14 | 72°F | 52°F | 45% | 28% | 14 h 20 min |
| May 15 | 73°F | 52°F | 45% | 28% | 14 h 20 min |
| May 16 | 73°F | 52°F | 45% | 28% | 14 h 20 min |
| May 17 | 73°F | 53°F | 45% | 28% | 14 h 20 min |
| May 18 | 73°F | 53°F | 45% | 28% | 14 h 20 min |
| May 19 | 74°F | 53°F | 45% | 28% | 14 h 30 min |
| May 20 | 74°F | 54°F | 44% | 28% | 14 h 30 min |
| May 21 | 74°F | 54°F | 44% | 28% | 14 h 30 min |
| May 22 | 75°F | 54°F | 44% | 28% | 14 h 30 min |
| May 23 | 75°F | 55°F | 44% | 28% | 14 h 30 min |
| May 24 | 75°F | 55°F | 44% | 27% | 14 h 30 min |
| May 25 | 76°F | 55°F | 44% | 27% | 14 h 40 min |
| May 26 | 76°F | 55°F | 44% | 27% | 14 h 40 min |
| May 27 | 76°F | 56°F | 44% | 27% | 14 h 40 min |
| May 28 | 77°F | 56°F | 43% | 27% | 14 h 40 min |
| May 29 | 77°F | 56°F | 43% | 27% | 14 h 40 min |
| May 30 | 77°F | 57°F | 43% | 27% | 14 h 40 min |
| May 31 | 78°F | 57°F | 43% | 28% | 14 h 40 min |
- Normal high
- 73°FMay average
- Normal low
- 52°FMay average
- Precipitation
- 4.63 inmonth total
- Days with precipitation
- 140.01 inch or more
- Daylight
- 13 h 50 min to 14 h 40 minMay 1 to May 31
- Days at 70°F or more
- 21
- Days at 80°F or more
- 10
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013841; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Wilmington in May?
On a given May day the chance of 0.01 inch or more is 45% on average, highest around May 2 (46%). In all, 4.63 in falls on 14 days of a normal May, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013841.
What are the records for May in Wilmington?
The warmest May temperature on Wilmington's official record (since 1917) is 97°F, on May 10, 1936; the coldest is 24°F, on May 10, 1966. The wettest May brought 12.96 in (1968); the snowiest, 3.0 inches (1923).
The May mean against the 1991-2020 normal of 62.5°F: 2021 59.9°F (−2.6), 2022 65.8°F (+3.3), 2023 62.2°F (−0.3), 2024 67.8°F (+5.3), 2025 59.8°F (−2.7), 2026 60.2°F (−2.3). 2 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.9°F | −2.6°F | 2.90 in |
| 2022 | 65.8°F | +3.3°F | 7.89 in |
| 2023 | 62.2°F | −0.3°F | 2.39 in |
| 2024 | 67.8°F | +5.3°F | 3.27 in |
| 2025 | 59.8°F | −2.7°F | 6.18 in |
| 2026 | 60.2°F | −2.3°F | 4.03 in |
Source: records: ACIS, NWS threaded record ILNthr; recent months: ACIS, station USW00013841. Records and recent months use complete months only.
How does May in Wilmington compare across Ohio?
Across the 99 places PlainClimate covers in Ohio, May normal highs run from 69°F in Sandusky to 76°F in Milford; Wilmington's is 73°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.