Indianapolis

Indiana Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Indiana, the United States of America in May.

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Indianapolis Merrillville Michigan City Portage

Thinking about venturing to Indiana, the United States of America this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Indiana in May

Indiana, the United States of America is a region in the United States of America. May in Indiana generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is pleasant in Michigan City at 21°C (70°F) to warm in Evansville at 25°C (77°F). Nighttime temperatures generally drop to 14°C (57°F) in Evansville and 10°C (50°F) in Michigan City.

For a closer look at conditions across Indiana, the United States of America, refer to the map below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Wabash with an average of 91 mm (3.6 in) to high rainfall in French Lick with 143 mm (5.6 in).

Average sunshine

Most destinations offer generous amounts of sunshine this May. For example, Indianapolis gets approximately 270 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Indiana by month

Pick a month to see the average temperature, rainfall and sunshine in Indiana - and find the best time to visit. (based on Indianapolis)

January2°C (36°F) February3°C (37°F) March11°C (52°F) April18°C (64°F) May23°C (73°F) June28°C (82°F) This monthJuly29°C (84°F) August29°C (84°F) September26°C (79°F) October18°C (64°F) November11°C (52°F) December5°C (41°F)
Best Time to Visit Indiana →

Best Places to Visit in Indiana in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Indiana.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Indiana

What is the weather like in May for some of the most popular destinations in Indiana, the United States of America?

Temperature range in Indiana (May)

Precipitation variation in Indiana (May)

Indianapolis

In May Indianapolis generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are very good that month.

« April
May
June »
April
May
June
Max temperature
18°C (64°F)
23°C (73°F)
28°C (82°F)
Min temperature
6°C (43°F)
12°C (54°F)
18°C (64°F)
Monthly sun hours
215 hours
270 hours
290 hours
Monthly rainfall
134 mm (5.3 in)
116 mm (4.6 in)
157 mm (6.2 in)
Monthly rainy days
13 days
15 days
15 days
Weather conditions
good
very good
very good
Climate in Indianapolis →

Merrillville

In May Merrillville generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are very good that month.

« April
May
June »
April
May
June
Max temperature
16°C (61°F)
22°C (72°F)
27°C (81°F)
Min temperature
4°C (39°F)
10°C (50°F)
16°C (61°F)
Monthly sun hours
217 hours
282 hours
311 hours
Monthly rainfall
103 mm (4.1 in)
103 mm (4.1 in)
115 mm (4.5 in)
Monthly rainy days
13 days
12 days
14 days
Weather conditions
mixed
very good
very good
Climate in Merrillville →

Michigan City

In May Michigan City generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are very good that month.

« April
May
June »
April
May
June
Max temperature
14°C (57°F)
21°C (70°F)
25°C (77°F)
Min temperature
4°C (39°F)
10°C (50°F)
16°C (61°F)
Monthly sun hours
210 hours
281 hours
300 hours
Monthly rainfall
98 mm (3.9 in)
101 mm (4 in)
105 mm (4.1 in)
Monthly rainy days
13 days
12 days
13 days
Weather conditions
good
very good
very good
Climate in Michigan City →

Portage

In May Portage generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are very good that month.

« April
May
June »
April
May
June
Max temperature
15°C (59°F)
21°C (70°F)
26°C (79°F)
Min temperature
4°C (39°F)
10°C (50°F)
15°C (59°F)
Monthly rainfall
98 mm (3.9 in)
101 mm (4 in)
117 mm (4.6 in)
Monthly rainy days
12 days
13 days
13 days
Weather conditions
good
very good
very good
Climate in Portage →

Hammond

In May Hammond generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are very good that month.

« April
May
June »
April
May
June
Max temperature
15°C (59°F)
21°C (70°F)
27°C (81°F)
Min temperature
4°C (39°F)
11°C (52°F)
16°C (61°F)
Monthly sun hours
217 hours
282 hours
311 hours
Monthly rainfall
114 mm (4.5 in)
109 mm (4.3 in)
118 mm (4.6 in)
Monthly rainy days
13 days
12 days
14 days
Weather conditions
mixed
very good
very good
Climate in Hammond →

Is your destination not in the list? Have a look at all destinations in Indiana, in the United States of America.

Popular cities in May

Day & night temperatures, rainfall and average weather in Indiana in May.

City Weather Day temp Night temp Rainfall
Indianapolis 23°C (73°F) 12°C (54°F) 116 mm (4.6 in)
Merrillville 22°C (72°F) 10°C (50°F) 103 mm (4.1 in)
Michigan City 21°C (70°F) 10°C (50°F) 101 mm (4 in)
Portage 21°C (70°F) 10°C (50°F) 101 mm (4 in)
Hammond 21°C (70°F) 11°C (52°F) 109 mm (4.3 in)
Valparaiso 21°C (70°F) 10°C (50°F) 103 mm (4.1 in)

Indiana weather in May: frequently asked questions

What is the weather like in Indiana, the United States of America in May?

In May, Indiana, the United States of America generally has very good weather conditions. Indianapolis sees daytime temperatures near 23°C (73°F), with nights cooling to roughly 12°C (54°F).

What is the average temperature in Indiana, the United States of America in May?

Average temperatures in Indiana, the United States of America during May range from a nighttime low near 12°C (54°F) to a daytime high around 23°C (73°F) in Indianapolis.

Does Indiana, the United States of America get a lot of rain in May?

Indianapolis typically receives notable rainfall in May, about 116 mm (4.6 in) on average across Indiana, the United States of America.

Is May a Good Time to Visit Indiana, the United States of America?

Given the typically very good weather conditions in Indianapolis, May might be a good time to visit Indiana, the United States of America.

Generally speaking, the best visiting conditions can be found in August and September offering mostly excellent weather in Indianapolis. The weather in January, February and December, on the other hand, tends to be less favorable.

Interested in more climate information?

We have much more information about the climate in Indiana.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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