Merrillville
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Merrillville Weather in May

Merrillville in May sees pleasant daytime temperatures of 22°C (72°F) and nighttime lows of 10°C (50°F). Rainfall is fairly high this month at around 103 mm (4.1 in), so pack a rain jacket to stay dry.

Rainfall in Merrillville in May

Looking at the last 30 years, the data shows about 12 days with rain, averaging 103 mm (4.1 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Merrillville in May

Temperatures in Merrillville in May top out at 22°C (72°F) and drop to 10°C (50°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Merrillville in May

Expect a lot of sunshine this month, with about 282 hours of sun. These sunny conditions add to the overall experience.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.

Merrillville Temperature in May

Min Temperature
10°C (50°F)
Max Temperature
22°C (72°F)
Chance of Rain
40%
Precipitation
103 mm (4.1 in)
Rainy days
12 days
Humidity
64% *
Sunshine
282 hours *
Percentage Sunshine
62% *
* Data from: Chicago, the United States of America (72 KM, 45 Miles).

Merrillville Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Merrillville - and find the best time to visit.

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

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).

What to Wear in Merrillville in May

For Merrillville in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Merrillville in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    6/10
  • Outdoor sports
    9/10

Merrillville 3-Day Forecast

Popular in May

Where to go in May - average daytime high across popular destinations.

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