Merrillville Weather in December
Merrillville in December averages 3°C (37°F) during the day and -5°C (23°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.
Rainfall in Merrillville in December
On average, there are about 14 days with snow/rain during this month, averaging 76 mm (3 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Merrillville in December
In December, Merrillville sees low temperatures, with highs of 3°C (37°F). Nights drop to around -5°C (23°F). This month falls in the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. With lows of -5°C (23°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.
Sunshine in Merrillville in December
You can expect a moderate amount of sunlight, with approximately 107 hours. This means a pleasant mix of sun and overcast.December in Merrillville has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Merrillville's climate page.
Merrillville Temperature in December
Min Temperature
-5°C (23°F)
Max Temperature
3°C (37°F)
Chance of Rain
47%
Precipitation
76 mm (3 in)
Rainy days
14 days
Humidity
76% *
Sunshine
107 hours *
Percentage Sunshine
37% *
Best Places in the United States of America in December
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 December →
perfect weather
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tolerable
unpleasant
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What to Wear in Merrillville in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Merrillville in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Merrillville's climate page.
Temperature Rainfall Sunshine Humidity
See the full Merrillville climate overview or explore weather in the United States of America.
