Oshkosh weather in May: Oshkosh, Wisconsin: normal highs, lows, rain and records for May
Oshkosh in May has a normal high of 67°F and a normal low of 47°F, a daily mean of 57°F, rising from 62°F on the 1st to 73°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.60 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 8°C, 91 mm of precipitation in May.
- NOAA stationOshkosh Wittman Airport
- Station IDUSW00094855
- Location43.98°N 88.56°W
- Elevation782 ft (238 m)
- Population67,242
- Jan 26° 11°
- Feb 30° 14°
- Mar 42° 24°
- Apr 55° 36°
- May 67° 47°
- Jun 77° 57°
- Jul 81° 61°
- Aug 79° 60°
- Sep 72° 51°
- Oct 59° 40°
- Nov 44° 29°
- Dec 32° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oshkosh in May?
The normal high is 67°F and the normal low 47°F, for a daily mean of 57.1°F. May is 12.0°F warmer than April and 10.2°F cooler than June. May is the 5th warmest month of the year in Oshkosh and the 3rd wettest. Across the month the normal high rises 11°F, from 62°F on May 1 to 73°F on May 31. From one year to the next May's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Mays in three average between 54°F and 60°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 43%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 62°F | 41°F | 41% | 23% |
| May 8 | 64°F | 44°F | 41% | 24% |
| May 15 | 67°F | 47°F | 42% | 25% |
| May 22 | 70°F | 49°F | 42% | 26% |
| May 31 | 73°F | 53°F | 43% | 27% |
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 | 62°F | 41°F | 41% | 23% | 14 h 10 min |
| May 2 | 62°F | 41°F | 41% | 23% | 14 h 10 min |
| May 3 | 62°F | 42°F | 41% | 23% | 14 h 10 min |
| May 4 | 63°F | 42°F | 41% | 23% | 14 h 20 min |
| May 5 | 63°F | 43°F | 41% | 23% | 14 h 20 min |
| May 6 | 64°F | 43°F | 41% | 23% | 14 h 20 min |
| May 7 | 64°F | 43°F | 41% | 24% | 14 h 20 min |
| May 8 | 64°F | 44°F | 41% | 24% | 14 h 30 min |
| May 9 | 65°F | 44°F | 42% | 24% | 14 h 30 min |
| May 10 | 65°F | 45°F | 42% | 24% | 14 h 30 min |
| May 11 | 66°F | 45°F | 42% | 24% | 14 h 30 min |
| May 12 | 66°F | 45°F | 42% | 24% | 14 h 40 min |
| May 13 | 66°F | 46°F | 42% | 24% | 14 h 40 min |
| May 14 | 67°F | 46°F | 42% | 24% | 14 h 40 min |
| May 15 | 67°F | 47°F | 42% | 25% | 14 h 40 min |
| May 16 | 68°F | 47°F | 42% | 25% | 14 h 40 min |
| May 17 | 68°F | 47°F | 42% | 25% | 14 h 50 min |
| May 18 | 68°F | 48°F | 42% | 25% | 14 h 50 min |
| May 19 | 69°F | 48°F | 42% | 25% | 14 h 50 min |
| May 20 | 69°F | 49°F | 42% | 25% | 14 h 50 min |
| May 21 | 69°F | 49°F | 42% | 25% | 15 h |
| May 22 | 70°F | 49°F | 42% | 26% | 15 h |
| May 23 | 70°F | 50°F | 42% | 26% | 15 h |
| May 24 | 71°F | 50°F | 43% | 26% | 15 h |
| May 25 | 71°F | 51°F | 43% | 26% | 15 h |
| May 26 | 71°F | 51°F | 43% | 26% | 15 h |
| May 27 | 72°F | 51°F | 43% | 26% | 15 h 10 min |
| May 28 | 72°F | 52°F | 43% | 27% | 15 h 10 min |
| May 29 | 72°F | 52°F | 43% | 27% | 15 h 10 min |
| May 30 | 73°F | 53°F | 43% | 27% | 15 h 10 min |
| May 31 | 73°F | 53°F | 43% | 27% | 15 h 10 min |
- Normal high
- 67°FMay average
- Normal low
- 47°FMay average
- Precipitation
- 3.60 inmonth total
- Days with precipitation
- 130.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 14 h 10 min to 15 h 10 minMay 1 to May 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 4
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094855; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oshkosh in May?
On a given May day the chance of 0.01 inch or more is 42% on average, highest around May 27 (43%). In all, 3.60 in falls on 13 days of a normal May, 1 of them with an inch or more.
In a normal May in Oshkosh, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094855.
What are the records for May in Oshkosh?
The warmest May temperature on this station's record (since 1996) is 94°F, on May 27, 2018; the coldest is 25°F, on May 3, 2004. The wettest May brought 9.26 in (2004).
The May mean against the 1991-2020 normal of 57.1°F: 2021 57.2°F (+0.1), 2022 60.0°F (+2.9), 2023 58.1°F (+1.0), 2024 60.3°F (+3.2), 2025 55.2°F (−1.9), 2026 56.4°F (−0.7). 4 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 57.2°F | +0.1°F | 3.24 in |
| 2022 | 60.0°F | +2.9°F | 3.13 in |
| 2023 | 58.1°F | +1.0°F | 1.75 in |
| 2024 | 60.3°F | +3.2°F | 5.63 in |
| 2025 | 55.2°F | −1.9°F | 3.27 in |
| 2026 | 56.4°F | −0.7°F | 2.63 in |
Source: records: ACIS, station USW00094855; recent months: ACIS, station USW00094855. Records and recent months use complete months only.
How does May in Oshkosh compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, May normal highs run from 57°F in Superior to 73°F in Mondovi; Oshkosh's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.