🇺🇸 Chicago vs St. Louis 🇺🇸
Chicago, United States vs St. Louis, United States — a side-by-side climate comparison to help you pick. St. Louis is the warmer of the two — about 5 degrees warmer on average across the year. St. Louis is drier, with roughly 15 fewer rainy days a year.
Climate at a glance
| 🇺🇸 Chicago | 🇺🇸 St. Louis | |
|---|---|---|
| Avg annual high | 14°C | 19°C |
| Hottest month | July (26°C) | July (31°C) |
| Coldest month | February (-7°C low) | January (-4°C low) |
| Rainy days / year | 194 | 179 |
| Snow | Rare | Rare |
| Best months to visit | May, June, September | April, September, October |
🇺🇸 Chicago
Best around May, June, September. Hottest in July (26°C), coldest lows in February (-7°C).
🇺🇸 St. Louis
Best around April, September, October. Hottest in July (31°C), coldest lows in January (-4°C).
Frequently asked questions
Is Chicago or St. Louis warmer?
St. Louis is warmer overall, averaging about 5 degrees higher across the year.
Which is rainier, Chicago or St. Louis?
Chicago is rainier — St. Louis sees about 15 fewer rainy days per year.
When is the best time to visit Chicago vs St. Louis?
Chicago is best around May, June, September; St. Louis is best around April, September, October.