Expats who like their climes varied will be glad to know that Indianapolis experiences distinct seasons. Summers are typically hot, humid and wet with an average high temperature peaking at around 85°F (29.4°C) in July, while winters are usually quite frosty and often snowy, with the average low temperature dropping to a crisp 20°F (-6.7°C) in January. What exacerbates the cold is the absence of mountain ranges to the north of Indy, which allows frigid winds from Canada to strike the city unhindered. As a result, Indy experiences around 24 snowy days during the year, registering around 26" (660mm) of snow. Spring and autumn are usually fairly pleasant, but unpredictable with occasional rainfall.

With an average annual precipitation of 42" (1067mm), rainfall is spread throughout the year, but is heaviest during late spring and summer. The city's average humidity hovers around 72 percent through the year, peaking in December when cloud coverage is at its densest.

Those who enjoy getting out of the house will want to do so from late spring in May to autumn in September when Indy experiences its most pleasant conditions. These months are mostly sunny with temperatures ranging from  56°F (13°C) to 85°F (29.4°C), affording plenty of opportunities to get outdoors and explore the city’s many attractions. During December to February it'll become clear that it’s time to batten down the hatches. Sunshine is generally in short supply at this time of the year, and temperatures drop below freezing. Snowstorms are also common.

Indianapolis isn’t that prone to weather hazards, but does experience snowstorms, thunderstorms and rainstorms, which could lead to flood situations.