What to pack for Chicago, year-round

Chicago has 12 distinct packing realities. Pick the month you're traveling — each opens a full data-driven list:

• January -0.4°C · 17 rain days · 20 items Heavy layers
• February 0.7°C · 13 rain days · 18 items Heavy layers
• March 6.2°C · 16 rain days · 20 items Heavy layers
• April 12°C · 18 rain days · 20 items Layered casual
• May 18.3°C · 18 rain days · 20 items Light + sun cover
• June 24.3°C · 18 rain days · 19 items Light + sun cover
• July 26.3°C · 18 rain days · 19 items Hot-weather kit
• August 26°C · 18 rain days · 20 items ⚠ Hot-weather kit
• September 23°C · 15 rain days · 17 items ⚠ Light + sun cover
• October 15.7°C · 18 rain days · 21 items ⚠ Layered casual
• November 8.1°C · 13 rain days · 18 items Heavy layers
• December 3.6°C · 12 rain days · 18 items Heavy layers