January is a good month at Gateway Arch — it ranks 11th of the twelve here. Expect about 89% fewer visitors than July, the park's peak — 51,776 visits on average. Days run around 41°F by afternoon and 22°F at night, with 9.7 hours of daylight.
January against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| January (this page) | Good | 51,776 | −89% | 41°F | 22°F | 4.9" | 9.7 h |
| October (best) | Excellent | 125,733 | −74% | 70°F | 46°F | 0" | 11.1 h |
| July (peak crowds) | Tough | 476,195 | peak | 89°F | 69°F | 0" | 14.6 h |
Weather figures are for downtown St. Louis — the Cahokia station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is January a good time to visit Gateway Arch?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. January ranks 11 of 12 at Gateway Arch on crowds, weather, daylight, and access together.
How crowded is Gateway Arch in January?
About 51,776 recreation visits on average — 89% below July, the park's peak.
How warm is Gateway Arch in January?
Average highs around 41°F and lows around 22°F at the Cahokia station, with about 5 inches of snow across the month.
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