Wisconsin Weather by Month
Wisconsin, located in the Upper Midwest region of the United States, experiences a diverse climate characterized by four distinct seasons. The state’s weather varies significantly from season to season, with cold, snowy winters and warm, humid summers. Wisconsin’s geography, which includes the Great Lakes and numerous rivers, influences its climate, leading to considerable variation across the state. Winters can be harsh, particularly in the northern regions, where snow cover is common from November through March. Summers are typically warm, with temperatures often reaching into the 80s°F (27-32°C), making it an ideal time for outdoor activities. Spring and fall offer more moderate temperatures, though both seasons can be unpredictable, with rapid changes in weather conditions. Wisconsin’s climate is well-suited for a variety of recreational activities year-round, from ice fishing and skiing in the winter to hiking, boating, and exploring state parks in the warmer months. The state’s varied climate and beautiful landscapes make it a year-round destination for visitors seeking to experience the natural beauty of the Midwest.
| Month | Avg. Temp (°F) | Avg. Temp (°C) | Avg. Precipitation (in) |
|---|---|---|---|
| January | 10-25 | -12 to -4 | 1.3 |
| February | 15-30 | -9 to -1 | 1.2 |
| March | 25-45 | -4 to 7 | 1.8 |
| April | 35-55 | 2 to 13 | 3.0 |
| May | 45-65 | 7 to 18 | 3.5 |
| June | 55-75 | 13 to 24 | 4.0 |
| July | 60-80 | 16 to 27 | 4.1 |
| August | 58-78 | 14 to 26 | 4.0 |
| September | 50-70 | 10 to 21 | 3.5 |
| October | 40-60 | 4 to 16 | 2.5 |
| November | 25-45 | -4 to 7 | 2.1 |
| December | 15-30 | -9 to -1 | 1.5 |
January
Weather Description
January is the coldest month in Wisconsin, with average temperatures ranging from 10°F to 25°F (-12°C to -4°C). Snow is a common occurrence, particularly in the northern regions, where snow cover can last all month. Winds can add to the chill, making it feel even colder. Despite the harsh conditions, January offers a quintessential winter experience with plenty of snow-based activities.
Clothes to Wear
Layering is essential in January. Start with thermal base layers, followed by a thick sweater or fleece, and top it off with a heavy, insulated winter coat. A hat, gloves, scarf, and insulated boots are also necessary to protect against the cold and snow. For outdoor activities, waterproof clothing and snow boots with good traction are recommended.
Major Landmarks Recommended
Door County transforms into a winter wonderland in January, offering activities such as cross-country skiing, snowshoeing, and ice fishing. Eagle River is known for its snowmobile trails, attracting enthusiasts from across the region. Madison’s lakes, frozen over, provide perfect spots for ice skating and ice fishing, while the city’s vibrant winter events add warmth to the cold days.
February
Weather Description
February in Wisconsin remains cold, with temperatures averaging between 15°F and 30°F (-9°C to -1°C). Snow continues to fall, though daylight increases slightly, making the days feel a bit longer. The state’s winter scenery is at its peak, with snow-covered trees and frozen lakes creating a picturesque landscape.
Clothes to Wear
Similar to January, heavy winter gear is essential. Dress in layers, with thermal underwear, a warm middle layer, and a heavy winter coat. Waterproof boots, gloves, a hat, and a scarf are necessary to stay warm. For outdoor activities, snow pants and a windproof jacket will provide extra protection against the elements.
Major Landmarks Recommended
The Apostle Islands offer unique ice cave tours in February, where visitors can explore stunning natural ice formations along Lake Superior’s shoreline. Bayfield is another excellent destination for winter sports, including cross-country skiing and ice fishing. Milwaukee hosts various winter festivals and events, showcasing the city’s vibrant culture and providing indoor entertainment.
March
Weather Description
March in Wisconsin is a transition month, with temperatures ranging from 25°F to 45°F (-4°C to 7°C). Snowfall is still common, but warmer days start to melt the snow, leading to slushy conditions. The weather is highly variable, with a mix of snow, rain, and occasional sunny days.
Clothes to Wear
Layering remains important in March. A combination of thermal layers, waterproof outerwear, and a warm mid-layer is ideal. Be prepared for both winter and spring conditions by wearing waterproof boots, a beanie, and gloves. Carrying an umbrella or water-resistant hat can also be useful for rain showers.
Major Landmarks Recommended
As winter slowly gives way to spring, Devil’s Lake State Park begins to thaw, offering early opportunities for hiking and birdwatching. Milwaukee’s St. Patrick’s Day parade is a festive event that draws crowds from all over the state. Lake Geneva hosts the annual Winterfest, featuring snow sculpting competitions and other winter activities as the season winds down.
April
Weather Description
April brings more noticeable signs of spring to Wisconsin, with temperatures averaging between 35°F and 55°F (2°C to 13°C). Snow is less frequent, and rain showers become more common, helping to green up the landscape. The weather can still be unpredictable, with cool days and the occasional warm spell.
Clothes to Wear
Spring weather in Wisconsin can be changeable, so it’s wise to wear layers that can be adjusted throughout the day. Waterproof jackets and boots are essential for navigating wet and muddy terrain. A light fleece or sweater can be paired with a rain jacket, and a hat and gloves might still be necessary on cooler days.
Major Landmarks Recommended
April is a beautiful time to visit Madison, where the city’s parks and gardens begin to bloom, and outdoor activities become more feasible. Door County also starts to awaken from its winter slumber, offering scenic drives and early-season hiking. Horicon Marsh, the largest freshwater cattail marsh in the U.S., is a great destination for birdwatching as migratory birds return for the season.
May
Weather Description
May in Wisconsin brings warmer weather, with average temperatures ranging from 45°F to 65°F (7°C to 18°C). The state becomes lush and green, with flowers blooming and trees fully leafing out. Rain showers are common, but the warmer temperatures make this a pleasant month for outdoor activities.
Clothes to Wear
May requires a versatile wardrobe to handle the variable weather. Light layers such as t-shirts and long-sleeve shirts, paired with a light jacket or sweater, are ideal. Waterproof clothing, including a rain jacket and sturdy boots, is recommended for those venturing into nature. As temperatures rise, you can start to swap heavier winter gear for lighter, more breathable options.
Major Landmarks Recommended
May is an excellent time to visit Wisconsin Dells, known for its scenic boat tours and waterparks. The Ice Age National Scenic Trail offers excellent hiking opportunities as the weather warms. Green Bay’s botanical gardens are in full bloom, making them a perfect spot for a leisurely stroll.
June
Weather Description
June ushers in the warmth of early summer in Wisconsin, with temperatures ranging from 55°F to 75°F (13°C to 24°C). The state’s landscapes are lush and green, with wildflowers in full bloom. The weather is generally mild and pleasant, making it an ideal time for outdoor activities.
Clothes to Wear
With the arrival of warmer weather, lighter clothing becomes more appropriate. T-shirts, light long-sleeve shirts, and hiking pants are ideal for daytime activities. However, evenings can still be cool, so a light jacket or fleece is recommended. Sunscreen, hats, and sunglasses are also important to protect against the strong summer sun.
Major Landmarks Recommended
June is one of the best times to explore Door County, where the cherry blossoms are in full bloom, and the scenic shoreline is perfect for kayaking and boating. The Great River Road offers a beautiful drive along the Mississippi River, with plenty of opportunities for hiking and picnicking. Madison hosts several outdoor festivals, including the popular Wisconsin Film Festival.
July
Weather Description
July is the warmest month in Wisconsin, with temperatures averaging between 60°F and 80°F (16°C to 27°C). The weather is generally warm and humid, with occasional thunderstorms that bring brief, intense rain showers. This is the peak of the summer season, and outdoor activities are at their height.
Clothes to Wear
Summer attire is suitable for July, including t-shirts, shorts, and breathable fabrics. However, temperatures can drop in the evenings, so a light jacket or sweater is still advisable. Comfortable hiking shoes or sandals are recommended for outdoor activities, and don’t forget sun protection, including sunscreen, hats, and sunglasses.
Major Landmarks Recommended
July is perfect for visiting The Apostle Islands, where you can explore sea caves, go kayaking, or simply relax on the beaches. Wisconsin Dells is in full swing, with its waterparks and boat tours offering fun for the whole family. Milwaukee’s Summerfest, one of the largest music festivals in the world, is a must-visit event for music lovers.
August
Weather Description
August continues the warm summer weather in Wisconsin, with temperatures ranging from 58°F to 78°F (14°C to 26°C). The days are long and sunny, making it an ideal month for outdoor adventures. Afternoon thunderstorms remain a possibility, but they are typically brief.
Clothes to Wear
Light, breathable clothing is best for August, with t-shirts, shorts, and comfortable hiking gear being essential. A lightweight rain jacket or poncho can be useful in case of unexpected showers. Sun protection remains important, so hats, sunglasses, and sunscreen are necessary for any outdoor activities.
Major Landmarks Recommended
August is an excellent time to explore Devil’s Lake State Park, with its clear waters and dramatic cliffs offering excellent hiking and swimming opportunities. Green Bay’s Bay Beach Amusement Park is a fun family destination, offering rides and attractions with a vintage charm. Door County continues to be a top destination for its beaches, wineries, and outdoor activities.
September
Weather Description
September in Wisconsin marks the beginning of fall, with temperatures cooling to an average range of 50°F to 70°F (10°C to 21°C). The days are still warm and pleasant, but the nights become cooler, and the first signs of autumn appear in the changing colors of the leaves. This is one of the best months for outdoor activities, with fewer crowds and stunning landscapes.
Clothes to Wear
Layering is key in September, as temperatures can vary widely throughout the day. A combination of t-shirts, long-sleeve shirts, and a medium-weight jacket or fleece is recommended. Comfortable hiking boots and a hat are essential for exploring the outdoors, and a light rain jacket can be useful for unexpected showers.
Major Landmarks Recommended
September is a prime time to visit Door County, where the fall colors begin to emerge, creating a stunning backdrop for hiking and apple picking. The Great River Road offers some of the most scenic drives in the state, with the added bonus of fall colors. Madison hosts several outdoor festivals, including the Taste of Madison, where you can sample the city’s best food and drink.
October
Weather Description
October in Wisconsin brings more noticeable autumn weather, with temperatures averaging between 40°F and 60°F (4°C to 16°C). The state begins to prepare for winter, with cooler days and chilly nights. Snowfall is possible, particularly at higher elevations, and the fall colors reach their peak, creating a beautiful contrast against the rugged terrain.
Clothes to Wear
As temperatures drop, warmer clothing becomes necessary. Layered clothing, including long-sleeve shirts, sweaters, and a warm jacket, is ideal for October. A beanie, gloves, and waterproof boots are recommended for those venturing into higher elevations or preparing for the possibility of early snowfall.
Major Landmarks Recommended
October is a great time to visit Door County, where the fall colors provide a stunning backdrop for outdoor activities like hiking, biking, and apple picking. Devil’s Lake State Park is quieter this time of year, offering peaceful landscapes and excellent opportunities to see fall foliage. The Wisconsin Dells is another must-see destination, offering breathtaking views of the snow-capped mountains and colorful forests.
November
Weather Description
November in Wisconsin signals the transition from fall to winter, with average temperatures ranging from 25°F to 45°F (-4°C to 7°C). Snow becomes more common, especially in the mountains, and the state begins to experience winter conditions. The days are shorter, and the weather is often cold and crisp.
Clothes to Wear
Warm, insulated clothing is necessary for November, including thermal layers, a heavy winter coat, and insulated boots. Hats, gloves, and scarves are also important to protect against the cold. If you plan to spend time outdoors, consider wearing waterproof clothing to handle snow and slush.
Major Landmarks Recommended
November is a quieter time to visit Grand Teton National Park, where the snow-capped mountains create a breathtaking winter landscape. Yellowstone National Park begins to transition to winter operations, offering a peaceful and serene environment for wildlife viewing. The Buffalo Bill Center of the West in Cody is a great indoor destination to learn more about the history and culture of the American West.
December
Weather Description
December in Wisconsin is marked by cold temperatures and frequent snowfall, with average temperatures ranging from 15°F to 35°F (-9°C to 2°C). The state is transformed into a winter wonderland, with snow covering the mountains and plains. The days are short, but the festive atmosphere of the holiday season brings warmth and cheer to the cold winter days.
Clothes to Wear
Winter gear is essential in December, including thermal underwear, a thick sweater, a heavy winter coat, and insulated boots. Accessories like hats, gloves, and scarves are necessary to protect against the cold and wind. Layering is key to staying warm, especially if you plan to spend time outdoors.
Major Landmarks Recommended
December is the perfect time to visit Jackson Hole, where the ski season is in full swing, and the town is decked out in holiday lights and decorations. Yellowstone National Park offers unique winter experiences, such as snowmobile tours and guided snowshoe hikes. Cheyenne hosts festive events throughout the month, including Christmas parades and holiday markets, making it a charming destination to experience Wyoming’s winter traditions.
