Indianapolis Weather in January
January in Indianapolis brings low temperatures around 2°C (36°F) during the day, dropping to -7°C (19°F) at night, with quite a bit of snow/rainfall expected, averaging around 69 mm (2.7 in) for the month.
Rainfall in Indianapolis in January
Past climate data indicates that roughly 11 days will see snow/rain, totalling around 69 mm (2.7 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Indianapolis in January
If you're visiting Indianapolis in January, expect highs of 2°C (36°F) and overnight lows around -7°C (19°F). January is in the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. With overnight lows of -7°C (19°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.
Sunshine in Indianapolis in January
The month experiences a moderate amount of sunlight, with 133 hours of sunshine. This provides a nice balance between sunshine and clouds.January in Indianapolis can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, 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 Indianapolis's climate page.
Indianapolis Temperature in January
Min Temperature
-7°C (19°F)
Max Temperature
2°C (36°F)
Chance of Rain
37%
Precipitation
69 mm (2.7 in)
Rainy days
11 days
Humidity
75%
Sunshine
133 hours
Percentage Sunshine
44%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Indianapolis typically stay consistent throughout January, with daily highs averaging around 2°C (36°F). Nights are very cold, with lows typically ranging from -8°C (18°F) to -4°C (25°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Indianapolis in January
Browse day-by-day weather records for Indianapolis spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Indianapolis historical weather extremes in January
Based on weather observations in Indianapolis between 1976 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 7, 2008, with a maximum of 19°C (66°F).
Best Places in the United States of America in January
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 January →
perfect weather
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unpleasant
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What to Wear in Indianapolis in January
We recommend to layer up for chilly conditions in Indianapolis in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Indianapolis in January
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 Indianapolis's climate page.
Temperature Rainfall Sunshine Humidity
See the full Indianapolis climate overview or explore weather in the United States of America.
