Indiana Weather by Month
Indiana, located in the Midwestern United States, experiences a humid continental climate characterized by four distinct seasons. The state’s weather varies significantly throughout the year, offering hot, humid summers and cold, snowy winters, with mild and transitional spring and fall seasons. In the summer, temperatures often reach into the 80s°F to 90s°F (27°C to 32°C), accompanied by high humidity and occasional thunderstorms. Winters are typically cold, especially in northern Indiana, where lake-effect snow from Lake Michigan can bring significant snowfall. The southern part of the state tends to have milder winters with less snow. Spring and fall are marked by moderate temperatures and beautiful changes in foliage, making these seasons particularly pleasant for outdoor activities. Indiana’s climate supports a wide range of activities, from hiking and camping in its state parks to exploring historic landmarks and enjoying seasonal festivals. Whether you’re visiting the bustling city of Indianapolis, the rolling hills of southern Indiana, or the shores of Lake Michigan, Indiana’s diverse climate offers something for everyone throughout the year.
Average Temperature and Precipitation by Month
| Month | Avg Temp (°F) | Avg Temp (°C) | Avg Precipitation (inches) |
|---|---|---|---|
| January | 28°F | -2°C | 2.7 |
| February | 32°F | 0°C | 2.4 |
| March | 42°F | 6°C | 3.5 |
| April | 54°F | 12°C | 3.8 |
| May | 64°F | 18°C | 4.5 |
| June | 73°F | 23°C | 4.3 |
| July | 77°F | 25°C | 4.3 |
| August | 75°F | 24°C | 3.8 |
| September | 67°F | 19°C | 3.3 |
| October | 55°F | 13°C | 3.3 |
| November | 44°F | 7°C | 3.6 |
| December | 33°F | 1°C | 3.1 |
Monthly Weather, Clothing, and Landmarks
January
Weather: January is the coldest month in Indiana, with average temperatures ranging from 17°F to 37°F (-8°C to 3°C). The state often experiences snowfall, particularly in the northern regions, where lake-effect snow can significantly increase accumulation. Icy conditions and cold winds are common, especially in more exposed areas.
Clothing: To stay warm in January, dress in heavy winter clothing, including thermal layers, a down coat, gloves, scarves, and a hat. Waterproof boots with good insulation are necessary for navigating snow and ice, especially in northern regions. For outdoor activities, consider snow pants or insulated leggings for added warmth.
Landmarks: January is a great time to explore indoor attractions in Indianapolis, such as the Indianapolis Museum of Art, which offers extensive collections and beautiful grounds. For winter sports enthusiasts, head to Perfect North Slopes near Lawrenceburg, where you can enjoy skiing, snowboarding, and tubing. If you prefer a more tranquil winter experience, the frozen landscape of Turkey Run State Park provides a serene setting for winter hiking and photography.
February
Weather: February in Indiana remains cold, with temperatures ranging from 19°F to 40°F (-7°C to 4°C). Snowfall continues, particularly in the northern parts of the state, while southern Indiana may see a mix of snow and rain. The days start to lengthen slightly, but winter conditions persist.
Clothing: Warm layers are essential in February, including a heavy winter coat, thermal clothing, and insulated boots. Gloves, a hat, and a scarf are necessary to protect against the cold winds. Waterproof outerwear is recommended, particularly in regions prone to snow and ice.
Landmarks: February is an ideal time to visit the Children’s Museum of Indianapolis, one of the largest children’s museums in the world, offering interactive exhibits that are fun for all ages. For a romantic getaway, consider a stay at one of the cozy cabins in Brown County State Park, where you can enjoy winter hiking or simply relax by the fire. The Indiana Dunes National Park along Lake Michigan also offers unique winter activities, including snowshoeing and cross-country skiing along the snowy dunes.
March
Weather: March marks the beginning of spring in Indiana, with average temperatures ranging from 28°F to 52°F (-2°C to 11°C). The weather is variable, with the possibility of both snow and rain as the state transitions from winter to spring. Southern Indiana begins to see the first signs of blooming flowers and budding trees.
Clothing: Layered clothing is ideal for March, as temperatures can fluctuate throughout the day. A medium-weight jacket, along with a hat and gloves, is recommended for colder mornings and evenings. Waterproof boots are useful for navigating slushy or wet conditions.
Landmarks: March is a perfect time to visit the Hoosier National Forest in southern Indiana, where early spring brings blooming wildflowers and the awakening of the forest’s wildlife. The forest’s many trails offer excellent opportunities for hiking and birdwatching. In Indianapolis, the Indiana State Museum offers fascinating exhibits on the state’s history, natural environment, and cultural heritage, making it a great indoor activity as the weather begins to warm.
April
Weather: April in Indiana brings more consistent spring weather, with temperatures ranging from 40°F to 64°F (4°C to 18°C). Rain showers become more frequent, helping to green the landscape and encourage the growth of flowers and trees. The state’s northern regions may still experience the occasional cool day, while southern areas warm up more quickly.
Clothing: Light layers, including long-sleeved shirts, a medium-weight jacket, and waterproof footwear, are ideal for April. An umbrella or raincoat is recommended for dealing with spring showers, and comfortable walking shoes are useful for exploring outdoor attractions.
Landmarks: April is a wonderful time to visit the Indianapolis Zoo, where the warmer weather encourages animals to be more active and the gardens to bloom. For history enthusiasts, Conner Prairie in Fishers offers an interactive experience that brings Indiana’s history to life through re-enactments and exhibits. The Indiana University campus in Bloomington is also beautiful in the spring, with flowering trees and lush greenery providing a picturesque setting for a leisurely stroll.
May
Weather: May sees the full arrival of spring in Indiana, with temperatures ranging from 50°F to 74°F (10°C to 23°C). The weather is mild and pleasant, with frequent sunshine and occasional rain showers. Flowers and trees are in full bloom, making the state’s landscapes particularly beautiful during this time.
Clothing: Light, breathable clothing such as t-shirts, light jackets, and comfortable walking shoes are ideal for May. A rain jacket or umbrella may be needed for occasional showers, and sun protection, including sunscreen and a hat, is recommended.
Landmarks: May is an ideal time to visit Indiana’s state parks, such as Brown County State Park, known for its scenic vistas, hiking trails, and abundant wildlife. The Indianapolis Motor Speedway comes alive in May with the Indianapolis 500, one of the most famous car races in the world. The month also marks the start of outdoor festivals and farmers’ markets, such as the Broad Ripple Farmers’ Market in Indianapolis, where you can enjoy fresh produce, artisanal goods, and live music.
June
Weather: June ushers in summer across Indiana, with temperatures ranging from 60°F to 82°F (16°C to 28°C). The weather is warm, with longer daylight hours and moderate humidity. The state’s landscapes are lush and green, making it an ideal time for outdoor activities and events.
Clothing: Light, breathable clothing such as shorts, t-shirts, and sandals is recommended for June. A hat, sunglasses, and sunscreen are essential for sun protection, and a light jacket may be useful for cooler evenings, especially in northern regions.
Landmarks: June is an excellent time to explore the Indiana Dunes National Park, where you can enjoy sandy beaches, hiking trails, and birdwatching along the shores of Lake Michigan. The town of Nashville, located in Brown County, is another great destination in June, offering charming shops, art galleries, and live music in a picturesque setting. The Indiana State Fairgrounds in Indianapolis also host various events in June, including agricultural exhibitions and cultural festivals.
July
Weather: July is the hottest month in Indiana, with temperatures ranging from 65°F to 86°F (18°C to 30°C). The weather is hot and humid, with frequent afternoon thunderstorms providing brief relief from the heat. The long days and warm temperatures make it the peak season for outdoor activities and events across the state.
Clothing: Wear light, breathable clothing such as shorts, tank tops, and sandals. Sun protection is crucial, so be sure to use sunscreen, wear sunglasses, and a hat. A light rain jacket or umbrella may be needed for afternoon thunderstorms.
Landmarks: July is ideal for enjoying Indiana’s many outdoor attractions, such as the Indiana State Fair, where you can enjoy agricultural exhibits, carnival rides, live music, and a variety of food vendors. For water enthusiasts, Patoka Lake offers opportunities for boating, fishing, and swimming. The historic town of Madison, located along the Ohio River, hosts the annual Madison Regatta, featuring hydroplane racing, live music, and a festival atmosphere.
August
Weather: August continues the hot and humid trend in Indiana, with temperatures ranging from 63°F to 85°F (17°C to 29°C). The heat and humidity remain high, with frequent afternoon thunderstorms. The weather is similar to July, making it a great time for late-summer outdoor activities.
Clothing: Light, airy clothing is recommended in August, including shorts, t-shirts, and sandals. Sunscreen, sunglasses, and a hat are necessary for sun protection. A rain jacket or umbrella is useful for the inevitable afternoon showers.
Landmarks: August is a great time to visit the Indiana State Fair, where you can enjoy a wide range of activities, including agricultural exhibits, live music, carnival rides, and delicious fair food. For nature lovers, head to the Indiana Dunes National Park for a day at the beach or a hike through the dunes. The warm weather also makes it a great time to explore the many wineries along the Indiana Uplands Wine Trail, where you can taste local wines and enjoy the scenic views of the rolling hills.
September
Weather: September brings the first hints of fall to Indiana, with temperatures ranging from 55°F to 76°F (13°C to 24°C). The weather remains warm, but the humidity begins to decrease, making the outdoors more comfortable. The state’s landscapes start to show early signs of fall foliage, particularly in the northern regions.
Clothing: Light layers are ideal for September, with t-shirts and shorts for the warmer parts of the day and a light jacket or sweater for cooler mornings and evenings. Comfortable walking shoes are recommended for exploring outdoor areas.
Landmarks: September is the perfect time to visit the Indiana Dunes National Park, where you can enjoy the early fall colors and cooler temperatures. The Covered Bridge Festival in Parke County is a popular event in September, celebrating Indiana’s historic covered bridges with arts and crafts, food vendors, and guided tours. For a cultural experience, visit the Indianapolis Museum of Art at Newfields, where you can explore the extensive art collections and beautiful outdoor gardens.
October
Weather: October sees a significant drop in temperatures, ranging from 44°F to 64°F (7°C to 18°C). The fall foliage reaches its peak, particularly in the northern and central parts of the state. The weather is typically dry and sunny, making it perfect for outdoor activities and enjoying the vibrant autumn colors.
Clothing: Warmer layers, including sweaters, jackets, and long pants, are necessary for October. A heavier coat may be needed for cold days, especially in the northern regions. Comfortable walking shoes are essential for exploring trails and parks.
Landmarks: October is the perfect time to visit Brown County State Park, where the fall foliage creates a stunning landscape of vibrant reds, oranges, and yellows. The park’s scenic drives and hiking trails offer beautiful views of the rolling hills covered in autumn colors. For a unique fall experience, visit the town of Nashville, known for its arts and crafts scene and charming downtown area. The Parke County Covered Bridge Festival also continues into October, offering a chance to explore Indiana’s historic covered bridges and enjoy the fall scenery.
November
Weather: November in Indiana sees the onset of winter, with temperatures dropping to between 35°F and 52°F (2°C to 11°C). The fall foliage begins to fade, and the state starts to experience more frequent frosts and the possibility of the first snowfall of the season.
Clothing: Warm layers, including sweaters and jackets, are necessary in November. A winter coat, gloves, and a hat may be needed for colder days, particularly in the northern parts of the state. Waterproof footwear is recommended for dealing with wet or frosty conditions.
Landmarks: November is a great time to visit the Indiana State Museum in Indianapolis, where you can explore exhibits dedicated to the state’s history, art, and natural environment. For a more festive experience, head to downtown Indianapolis to see the Circle of Lights, a holiday light display that kicks off the holiday season with a grand lighting ceremony. The Brown County Playhouse in Nashville offers live theater performances, making it a great indoor activity as the weather turns colder.
December
Weather: December in Indiana is characterized by cold temperatures and the approach of winter, with averages ranging from 28°F to 43°F (-2°C to 6°C). Snow is possible, particularly in the northern regions, and the state’s landscapes take on a wintry appearance with bare trees and occasional snow cover.
Clothing: Heavy winter clothing, including coats, scarves, gloves, and hats, is necessary for staying warm in December. Waterproof boots are essential for navigating snow and slush. Layering is key to staying comfortable in the fluctuating indoor and outdoor temperatures.
Landmarks: December is the perfect time to experience the holiday season in Indiana. Visit the Christmas at the Zoo event at the Indianapolis Zoo, where you can see the zoo transformed into a winter wonderland with festive light displays and holiday activities. The town of Santa Claus, Indiana, comes alive during December with holiday-themed events, including visits with Santa, light displays, and a Christmas parade. For a more historical experience, visit the Levi Coffin House in Fountain City, a National Historic Landmark that was a key stop on the Underground Railroad, where you can learn about the history of the abolitionist movement and enjoy the holiday decorations.
