What to pack for St. Louis, year-round

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

• January 4.9°C · 13 rain days · 18 items Heavy layers
• February 7.1°C · 13 rain days · 18 items Heavy layers
• March 13.2°C · 16 rain days · 20 items Layered casual
• April 19°C · 16 rain days · 20 items Light + sun cover
• May 24.6°C · 20 rain days · 19 items Light + sun cover
• June 30°C · 17 rain days · 20 items Hot-weather kit
• July 30.8°C · 17 rain days · 20 items Hot-weather kit
• August 29.6°C · 18 rain days · 21 items ⚠ Hot-weather kit
• September 27.3°C · 13 rain days · 18 items ⚠ Hot-weather kit
• October 19.8°C · 14 rain days · 19 items ⚠ Light + sun cover
• November 12.2°C · 12 rain days · 18 items Layered casual
• December 8°C · 10 rain days · 18 items Heavy layers