Wisconsin weather in May: Statewide normals and every place, NOAA 1991-2020
In May, Wisconsin's statewide normal high is 67°F and normal low 44°F; normal highs run from 57°F in Superior to 73°F in Mondovi (NOAA 1991-2020 normals).
- Statewide normal high
- 67°FMay, 1991-2020
- Statewide normal low
- 44°FMay, 1991-2020
- Statewide normal precipitation
- 3.93 inMay
- Warmest place
- 73°Fnormal high, Mondovi
- Coolest place
- 57°Fnormal high, Superior
Where is Wisconsin warmest and wettest in May?
Mondovi has the warmest May afternoons (73°F) and Superior the coolest (57°F). Hillsboro gets the most precipitation (5.00 in) and Marshfield the least (2.98 in). The most snow falls in Hurley (1.4 inches).
Statewide, May averaged 54.9°F in 2021, 57.2°F in 2022, 56.8°F in 2023, 57.7°F in 2024, 55.0°F in 2025, 54.8°F in 2026, against a 1991-2020 normal of 55.4°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Milwaukee | 67°F | 48°F | 3.54 | 0.0 |
| Madison | 69°F | 47°F | 4.10 | 0.1 |
| Green Bay | 67°F | 46°F | 3.35 | 0.0 |
| Kenosha | 69°F | 47°F | 3.52 | – |
| Racine | 66°F | 46°F | 3.49 | – |
| Appleton | 67°F | 46°F | 3.64 | 0.1 |
| Eau Claire | 70°F | 45°F | 3.91 | 0.4 |
| Waukesha | 67°F | 46°F | 3.97 | 0.0 |
| Oshkosh | 67°F | 47°F | 3.60 | – |
| West Allis | 70°F | 48°F | 4.32 | 0.0 |
| La Crosse | 72°F | 50°F | 4.33 | 0.0 |
| Sheboygan | 65°F | 44°F | 3.35 | – |
| Wauwatosa | 68°F | 48°F | 3.73 | 0.0 |
| Fond du Lac | 68°F | 47°F | 3.31 | – |
| Brookfield | 67°F | 47°F | 3.94 | – |
| Wausau | 67°F | 45°F | 3.79 | 0.2 |
| Beloit | 67°F | 46°F | 4.34 | 0.0 |
| Manitowoc | 62°F | 44°F | 3.44 | 0.0 |
| West Bend | 67°F | 45°F | 3.90 | – |
| Superior | 57°F | 41°F | 3.37 | 0.0 |
| Stevens Point | 67°F | 45°F | 4.08 | 0.0 |
| Watertown | 68°F | 47°F | 4.19 | 0.1 |
| Germantown | 66°F | 45°F | 3.95 | 0.3 |
| South Milwaukee | 64°F | 47°F | 4.18 | – |
| Oconomowoc | 69°F | 47°F | 4.14 | 0.2 |
| Marshfield | 67°F | 45°F | 2.98 | – |
| Wisconsin Rapids | 69°F | 45°F | 3.68 | – |
| River Falls | 68°F | 43°F | 4.29 | – |
| Ashwaubenon | 66°F | 46°F | 3.48 | 0.1 |
| Menomonie | 68°F | 44°F | 4.53 | 0.5 |
| Beaver Dam | 67°F | 46°F | 4.05 | 0.1 |
| Whitewater | 69°F | 47°F | 4.19 | 0.1 |
| Hartford | 67°F | 44°F | 3.82 | 0.3 |
| Stoughton | 69°F | 46°F | 4.28 | 0.0 |
| Baraboo | 70°F | 46°F | 4.28 | 0.0 |
| Port Washington | 61°F | 45°F | 3.90 | 0.0 |
| Grafton | 66°F | 46°F | 3.99 | – |
| Fort Atkinson | 69°F | 48°F | 4.13 | 0.2 |
| Platteville | 69°F | 47°F | 4.65 | 0.1 |
| Richfield | 68°F | 45°F | 4.13 | – |
| Two Rivers | 59°F | 44°F | 3.43 | 0.0 |
| Marinette | 64°F | 44°F | 3.50 | 0.0 |
| Burlington | 67°F | 44°F | 3.96 | 0.0 |
| Monroe | 70°F | 49°F | 4.07 | 0.3 |
| Reedsburg | 69°F | 47°F | 4.29 | 0.0 |
| Portage | 68°F | 48°F | 4.58 | 0.0 |
| Sparta | 68°F | 45°F | 4.64 | – |
| Sturgeon Bay | 62°F | 43°F | 3.32 | 0.0 |
| Shawano | 67°F | 44°F | 3.80 | 0.0 |
| Merrill | 67°F | 43°F | 3.72 | 0.1 |
| Delavan | 69°F | 47°F | 4.19 | – |
| Rice Lake | 68°F | 45°F | 3.85 | 0.5 |
| Plymouth | 66°F | 45°F | 3.83 | 0.2 |
| Lake Geneva | 72°F | 48°F | 4.12 | 0.0 |
| Rhinelander | 66°F | 41°F | 3.42 | – |
| Jackson | 67°F | 46°F | 3.35 | – |
| Antigo | 64°F | 43°F | 3.29 | 0.1 |
| Ashland | 64°F | 39°F | 3.45 | – |
| Hales Corners | 68°F | 46°F | 4.28 | – |
| Jefferson | 69°F | 48°F | 4.45 | – |
| Ripon | 67°F | 46°F | 3.92 | 0.0 |
| New London | 68°F | 45°F | 4.21 | 0.0 |
| Lake Mills | 70°F | 48°F | 4.39 | 0.1 |
| Slinger | 65°F | 45°F | 3.89 | – |
| Waupaca | 68°F | 45°F | 4.07 | 0.1 |
| Berlin | 67°F | 46°F | 4.22 | – |
| Prairie du Chien | 70°F | 48°F | 4.68 | 0.0 |
| Union Grove | 66°F | 45°F | 4.13 | 0.0 |
| Dodgeville | 68°F | 46°F | 4.61 | 0.0 |
| Richland Center | 69°F | 45°F | 4.68 | 0.0 |
| Oconto | 66°F | 44°F | 3.51 | 0.1 |
| Medford | 66°F | 43°F | 3.68 | 0.1 |
| Clintonville | 68°F | 45°F | 3.72 | 0.0 |
| Viroqua | 66°F | 45°F | 4.72 | 0.0 |
| Baldwin | 66°F | 45°F | 3.96 | 0.5 |
| Saukville | 64°F | 43°F | 3.82 | – |
| Chilton | 67°F | 45°F | 3.78 | 0.1 |
| Mauston | 69°F | 47°F | 4.51 | 0.0 |
| Lancaster | 68°F | 48°F | 4.39 | 0.2 |
| Horicon | 67°F | 46°F | 3.88 | 0.0 |
| Stanley | 67°F | 45°F | 3.74 | 0.3 |
| Rochester | 68°F | 45°F | 3.99 | – |
| Bloomer | 68°F | 45°F | 3.73 | 0.3 |
| Waterloo | 69°F | 46°F | 4.23 | – |
| Sauk City | 69°F | 46°F | 4.33 | – |
| Peshtigo | 65°F | 43°F | 3.66 | 0.1 |
| Ellsworth | 66°F | 43°F | 4.51 | – |
| Brillion | 68°F | 45°F | 3.91 | 0.0 |
| Boscobel | 72°F | 47°F | 4.35 | – |
| Brodhead | 70°F | 47°F | 4.18 | 0.1 |
| Lodi | 71°F | 47°F | 4.60 | – |
| Ladysmith | 67°F | 40°F | 4.19 | 1.3 |
| Wisconsin Dells | 69°F | 45°F | 4.38 | 0.0 |
| Paddock Lake | 68°F | 46°F | 4.38 | – |
| Amery | 67°F | 46°F | 3.86 | – |
| Denmark | 66°F | 44°F | 3.21 | 0.0 |
| Mondovi | 73°F | 46°F | 4.29 | 0.3 |
| Kewaunee | 60°F | 44°F | 3.30 | 0.0 |
| Hayward | 67°F | 41°F | 3.84 | – |
| Belgium | 63°F | 44°F | 3.71 | – |
| Spooner | 67°F | 44°F | 4.08 | 0.4 |
| Darlington | 69°F | 46°F | 4.18 | 0.6 |
| Neillsville | 68°F | 44°F | 4.45 | 0.0 |
| Park Falls | 65°F | 43°F | 3.73 | – |
| St. Croix Falls | 68°F | 46°F | 4.10 | 0.0 |
| Clinton | 69°F | 48°F | 4.24 | 0.0 |
| Cumberland | 65°F | 44°F | 3.84 | 0.4 |
| Durand | 68°F | 47°F | 4.22 | – |
| Trempealeau | 69°F | 48°F | 4.44 | 0.1 |
| Mazomanie | 70°F | 45°F | 4.38 | 0.0 |
| Hurley | 64°F | 41°F | 3.56 | 1.4 |
| Augusta | 68°F | 45°F | 4.30 | – |
| Montello | 69°F | 46°F | 4.44 | 0.0 |
| Hillsboro | 69°F | 46°F | 5.00 | 0.0 |
| Markesan | 68°F | 45°F | 4.29 | – |
| Grantsburg | 69°F | 44°F | 4.06 | 0.1 |
| Blair | 68°F | 45°F | 4.76 | 0.0 |
| Cashton | 68°F | 48°F | 4.44 | 0.1 |
| Crivitz | 66°F | 40°F | 3.17 | 0.0 |
| Hustisford | 68°F | 47°F | – | – |
| Luck | 68°F | 46°F | 4.21 | 0.2 |
| Hingham | 66°F | 45°F | 3.98 | 0.0 |
| Necedah | 69°F | 47°F | 4.02 | – |
| Owen | 66°F | 43°F | 3.99 | 0.2 |
| Lone Rock | 70°F | 48°F | 3.72 | – |
| Arlington | 69°F | 46°F | 4.24 | 0.1 |
| Alma | 68°F | 48°F | 4.81 | 0.2 |
| Mellen | 64°F | 40°F | 3.82 | 0.6 |
| Solon Springs | 67°F | 43°F | – | – |
| Friendship | 69°F | 45°F | 4.19 | 0.0 |
| Sullivan | 69°F | 46°F | 4.25 | 0.0 |
| Bayfield | 60°F | 40°F | 3.51 | – |
| Prentice | 66°F | 41°F | 3.89 | – |
| Minong | 68°F | 44°F | – | – |
| Laona | 63°F | 41°F | 3.78 | 0.8 |
| Suring | 66°F | 42°F | 3.43 | 0.1 |
| Gays Mills | 70°F | 46°F | 4.24 | 0.0 |
| Forestville | 61°F | 43°F | 3.15 | 0.1 |
| Rosholt | 67°F | 45°F | 4.00 | – |
| Minocqua | 64°F | 39°F | 3.76 | 0.7 |
| Hancock | 68°F | 45°F | 4.19 | 0.0 |
| Florence | 64°F | 40°F | 3.32 | 0.3 |
| Butternut | 64°F | 40°F | 3.87 | – |
| Rock Springs | 68°F | 48°F | – | – |
| Ephraim | 65°F | 42°F | 3.46 | 0.0 |
| Winter | 65°F | 42°F | 3.78 | 0.1 |
| Lakewood | 66°F | 40°F | 3.67 | 0.2 |
| Ridgeland | 67°F | 44°F | 4.08 | 0.0 |
| Jim Falls | 68°F | 45°F | 4.04 | – |
| Holcombe | 66°F | 45°F | 3.86 | – |
| Genoa | 71°F | 50°F | 4.73 | 0.0 |
| Weyerhaeuser | 68°F | 44°F | 4.31 | 0.0 |
| Dalton | 70°F | 46°F | 4.11 | 0.0 |
| Dodge | 72°F | 47°F | 4.30 | 0.6 |
| Brule | 64°F | 40°F | 3.66 | – |
| Goodman | 66°F | 39°F | – | – |
| Drummond | 64°F | 41°F | 4.06 | 0.1 |
| Port Wing | 61°F | 39°F | – | – |
| Lynxville | 70°F | 49°F | 4.68 | 0.0 |
| Steuben | 69°F | 48°F | 4.59 | 0.0 |
| Gordon | 66°F | 41°F | 3.78 | 0.3 |
| Danbury | 67°F | 44°F | 3.59 | 0.1 |
| Couderay | 67°F | 40°F | 4.62 | 0.1 |
| Saxon | 64°F | 41°F | 3.56 | 0.7 |
| Clam Lake | 63°F | 40°F | 4.08 | – |
| Afton - Janesville Wastewater Treatment Plant | 70°F | 48°F | 4.09 | 0.0 |
| Big Falls Hydro | 66°F | 44°F | 3.90 | – |
| Charmany Farm | 68°F | 47°F | 4.57 | 0.0 |
| Eagle River | 65°F | 39°F | 3.51 | 0.3 |
| Foxboro | 63°F | 37°F | – | – |
| Jump River (3 mi E) | 67°F | 43°F | 3.91 | 0.5 |
| Madeline Island | 61°F | 38°F | 3.31 | 0.3 |
| Mather (3 mi NW) | 68°F | 44°F | 4.28 | 0.0 |
| North Pelican | 66°F | 38°F | – | – |
| Pattison Ranger Staion | 62°F | 39°F | 3.59 | – |
| Pell Lake | 69°F | 46°F | 4.28 | – |
| Rest Lake | 65°F | 41°F | 3.69 | 0.3 |
| Rice Reservoir Tomahawk-2 | 64°F | 43°F | 3.60 | – |
| St Germain | 63°F | 40°F | 3.79 | 0.1 |
| Stockbridge-Munsee Reservation | 66°F | 43°F | – | – |
| Town Of Westford | 68°F | 47°F | 4.42 | – |
| Uw Arboretum - Madison | 69°F | 47°F | 4.55 | – |
| Washington Island | 59°F | 40°F | 2.97 | 0.0 |
| Willow Reservoir | 63°F | 41°F | 3.50 | 0.4 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.