Lake · United States
Lake Winnebago
Lake in Wisconsin
- Area
- 646km²
- Max depth
- 5m
- Average depth
- 6.4m
- Elevation
- 226m a.s.l.
- Shoreline
- 285km
- Volume
- 4.1km³
Lake Winnebago is a lake in United States. It covers 646 km². On average it is 6.4 m deep, and 5 m at its deepest point. Its surface lies 226 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Winnebago?
The water is warmest in July, around 24 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from June to August: comfortable for most swimmers.
The lake usually freezes over for about 124 days a year, from around 24 November to 27 March.
On the shore, afternoons reach 27 °C on average in July and -4 °C in January. The driest month is January (35 mm of rain), the wettest June (113 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (128 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | Ice | — | -4 | -11 | 35 | 8 | 3.9 | 22 |
| February | Ice | — | -2 | -11 | 36 | 6 | 5.8 | 22 |
| March | Ice | — | 4 | -4 | 54 | 8 | 6.5 | 20 |
| April | 6 | 10 | 11 | 1 | 87 | 12 | 6.5 | 21 |
| May | 14 | 17 | 17 | 7 | 102 | 13 | 7.6 | 18 |
| June | 20 | 22 | 23 | 13 | 113 | 14 | 8.4 | 16 |
| July | 24 | 24 | 27 | 17 | 88 | 15 | 9.3 | 15 |
| August | 23 | 24 | 26 | 16 | 89 | 13 | 7.9 | 15 |
| September | 19 | 22 | 22 | 12 | 81 | 10 | 6.8 | 17 |
| October | 12 | 16 | 14 | 5 | 81 | 10 | 4.7 | 20 |
| November | 3 | 7 | 6 | -1 | 52 | 8 | 3.6 | 20 |
| December | Ice | — | -1 | -7 | 49 | 7 | 2.7 | 21 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 11 months before flowing out.
- Its catchment drains 15,195 km² of land.
- About 137 m³ of water flow out every second, on average.
- Its shoreline is 3.2 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lake Winnebago
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 6beaches and swimming spots
- 8campsites
Upper Park Campground, West End Campground, South End Campground, North End Campground, Calumet County Park and 3 more
- 2boat hire and water-sport clubs
Kayak Rental, Midwest Rental Company
- 67marinas and slipways
Stockbridge Harbor Boat Launch, High Cliff Marina, Oshkosh Yacht club, Noffke's Bait & Landing, Black Wolf Boat Landing and 62 more
- —ferry piers
- 2viewpoints
Kimberly Point
- 9hotels, B&Bs and chalets
Brayton B&B, Oshkosh Marriott Waterfront Hotel & Convention Center, La Quinta Inn, Doubletree Hotel by Hilton Neenah, The Landing on the Wolf LLC and 4 more
- 1fishing spots
- 97restaurants and cafés
Towns on the shore
- Oshkosh66,555 people
- Fond du Lac42,933 people
- Neenah25,792 people
- Menasha17,572 people
- North Fond du Lac5,004 people
- Sherwood2,865 people
- Winneconne2,445 people
- Brothertown1,321 people
Nearest airport with scheduled flights: Appleton International Airport (ATW), 28 km in a straight line.
Car hire at ATW airport (Appleton)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | -3.7 | -2.3 | 4.2 | 10.9 | 17.4 | 23.2 | 26.9 | 26.2 | 22.0 | 13.8 | 6.2 | -0.8 |
| 2020 | +2.8 | −0.2 | +1.0 | −2.0 | −0.9 | +0.7 | +0.4 | +0.7 | −1.9 | −2.9 | +2.5 | +1.1 |
| 2021 | +1.9 | −3.7 | +3.0 | +1.7 | +1.4 | +3.3 | −0.4 | +0.6 | +0.1 | +3.3 | −0.2 | +2.5 |
| 2022 | −2.5 | −0.3 | −0.3 | −2.2 | +1.6 | +0.8 | +0.3 | +0.2 | +0.1 | +0.7 | +0.5 | −0.9 |
| 2023 | +2.8 | +2.8 | −1.5 | +0.9 | +1.5 | +1.5 | +0.7 | +0.1 | +1.5 | +1.1 | +0.2 | +4.0 |
| 2024 | +0.8 | +6.1 | +2.4 | +2.2 | +2.6 | +0.8 | −1.0 | −0.2 | +2.9 | +4.2 | +2.2 | +1.3 |
| 2025 | −0.4 | −0.3 | +2.2 | +0.6 | −0.3 | +1.1 | +0.4 | −0.4 | +1.5 | +2.9 | +0.6 | −2.2 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q1801110) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.
