Indianapolis weather in January
January in Indianapolis: cold, rainy, with clean air — one of the weakest months to visit.
#12 of 12 months in Indianapolis · #766 of 897 destinations to visit in January · comfort 48/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Indianapolis in January
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Indianapolis climate normals — January
| Daytime high | 4°C / 39°F | 🧥 cold |
|---|---|---|
| Nighttime low | -3°C / 26°F | |
| Rainfall | 93 mm / 3.7 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 70% | 💧 humid |
| Dew point | -5°C / 22°F | |
| Sunshine | 4.8 h/day | |
| Daylight | 9.7 h | |
| Wind | 19 km/h / 12 mph | |
| Snowfall | 13.8 cm / 5.4 in | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Indianapolis in January — FAQ
- Is January a good time to visit Indianapolis?
- January in Indianapolis: cold, rainy, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Indianapolis on SeasonMap's comfort score (48/100).
- What is the weather like in Indianapolis in January?
- In January, Indianapolis averages a daily high of 3.7°C and a low of -3.2°C, with about 92.9 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Indianapolis in January?
- Indianapolis has a mean US Air Quality Index of about 31 in January.
- Does it snow in Indianapolis in January?
- Indianapolis sees roughly 13.8 cm of snowfall in January.