Sheboygan weather in September: Sheboygan, Wisconsin: normal highs, lows, rain and records for September
Sheboygan in September has a normal high of 71°F and a normal low of 50°F, a daily mean of 60°F, falling from 76°F on the 1st to 66°F by the 30th. Measurable precipitation falls on 11 days in a normal September, 2.70 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 10°C, 69 mm of precipitation in September.
- NOAA stationSheboygan County Mem Airport
- Station IDUSW00004841
- Location43.77°N 87.85°W
- Elevation746 ft (227 m)
- Population49,624
- Jan 27° 12°
- Feb 30° 14°
- Mar 41° 24°
- Apr 53° 34°
- May 65° 44°
- Jun 75° 54°
- Jul 80° 58°
- Aug 78° 57°
- Sep 71° 50°
- Oct 58° 39°
- Nov 44° 28°
- Dec 33° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sheboygan in September?
The normal high is 71°F and the normal low 50°F, for a daily mean of 60.4°F. September is 7.3°F cooler than August and 11.9°F warmer than October. September is the 4th warmest month of the year in Sheboygan and the 7th wettest. Across the month the normal high falls 10°F, from 76°F on September 1 to 66°F on September 30. From one year to the next September's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 58°F and 63°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 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 76°F | 54°F | 38% | 18% |
| September 8 | 74°F | 52°F | 37% | 18% |
| September 15 | 72°F | 50°F | 37% | 18% |
| September 22 | 69°F | 47°F | 37% | 19% |
| September 30 | 66°F | 45°F | 38% | 19% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 76°F | 54°F | 38% | 18% | 13 h 20 min |
| September 2 | 76°F | 54°F | 38% | 18% | 13 h 10 min |
| September 3 | 75°F | 54°F | 38% | 18% | 13 h 10 min |
| September 4 | 75°F | 53°F | 38% | 18% | 13 h 10 min |
| September 5 | 75°F | 53°F | 38% | 18% | 13 h |
| September 6 | 75°F | 53°F | 38% | 18% | 13 h |
| September 7 | 74°F | 52°F | 37% | 18% | 13 h |
| September 8 | 74°F | 52°F | 37% | 18% | 13 h |
| September 9 | 74°F | 52°F | 37% | 18% | 12 h 50 min |
| September 10 | 74°F | 51°F | 37% | 18% | 12 h 50 min |
| September 11 | 73°F | 51°F | 37% | 18% | 12 h 50 min |
| September 12 | 73°F | 51°F | 37% | 18% | 12 h 40 min |
| September 13 | 73°F | 50°F | 37% | 18% | 12 h 40 min |
| September 14 | 72°F | 50°F | 37% | 18% | 12 h 40 min |
| September 15 | 72°F | 50°F | 37% | 18% | 12 h 30 min |
| September 16 | 72°F | 49°F | 37% | 18% | 12 h 30 min |
| September 17 | 71°F | 49°F | 37% | 18% | 12 h 30 min |
| September 18 | 71°F | 49°F | 37% | 19% | 12 h 30 min |
| September 19 | 70°F | 48°F | 37% | 19% | 12 h 20 min |
| September 20 | 70°F | 48°F | 37% | 19% | 12 h 20 min |
| September 21 | 70°F | 48°F | 37% | 19% | 12 h 20 min |
| September 22 | 69°F | 47°F | 37% | 19% | 12 h 10 min |
| September 23 | 69°F | 47°F | 37% | 19% | 12 h 10 min |
| September 24 | 68°F | 47°F | 37% | 19% | 12 h 10 min |
| September 25 | 68°F | 46°F | 37% | 19% | 12 h 10 min |
| September 26 | 67°F | 46°F | 37% | 19% | 12 h |
| September 27 | 67°F | 46°F | 37% | 19% | 12 h |
| September 28 | 66°F | 45°F | 37% | 19% | 12 h |
| September 29 | 66°F | 45°F | 38% | 19% | 11 h 50 min |
| September 30 | 66°F | 45°F | 38% | 19% | 11 h 50 min |
- Normal high
- 71°FSeptember average
- Normal low
- 50°FSeptember average
- Precipitation
- 2.70 inmonth total
- Days with precipitation
- 110.01 inch or more
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 18
- Days at 80°F or more
- 6
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00004841; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sheboygan in September?
On a given September day the chance of 0.01 inch or more is 37% on average, highest around September 1 (38%). In all, 2.70 in falls on 11 days of a normal September.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00004841.
What are the records for September in Sheboygan?
The warmest September temperature on this station's record (since 1996) is 93°F, on September 10, 2013; the coldest is 31°F, on September 29, 2003. The wettest September brought 5.97 in (2026).
The September mean against the 1991-2020 normal of 60.4°F: 2021 63.2°F (+2.8), 2022 62.2°F (+1.8), 2023 64.5°F (+4.1), 2024 65.2°F (+4.8), 2025 61.8°F (+1.4), 2026 62.7°F (+2.3). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 63.2°F | +2.8°F | 1.69 in |
| 2022 | 62.2°F | +1.8°F | 3.63 in |
| 2023 | 64.5°F | +4.1°F | 1.40 in |
| 2024 | 65.2°F | +4.8°F | 0.84 in |
| 2025 | 61.8°F | +1.4°F | 1.05 in |
| 2026 | 62.7°F | +2.3°F | 5.97 in |
Source: records: ACIS, station USW00004841; recent months: ACIS, station USW00004841. Records and recent months use complete months only.
How does September in Sheboygan compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, September normal highs run from 64°F in Laona to 77°F in West Allis; Sheboygan's is 71°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Sheboygan in August78°F by day, 57°F at night
- Sheboygan in October58°F by day, 39°F at night
- Sheboygan through the yearEvery month, frost dates, records and recent years
- Wisconsin in SeptemberThe statewide normal and the warmest and coolest places
- West Allis: Wisconsin's warmest Septembernormal high 77°F