Chicago logs 92 frost days a year to Portland's 25 — Portland wins by 67. Chicago also leads on hot days by 16.

Chicago runs about $3,665/mo for a balanced lifestyle against Portland's $3,613/mo — Portland comes in $52 cheaper each month, roughly 1% less.

On mobility, Portland scores 3.6 vs Chicago's 3.4 (0–5 scale), with the biggest gap on airport accessibility. Chicago still holds an edge on public transit.

Chicago's culture score of 4.4 sits well above Portland's 3.9, with the biggest gap on arts & culture.

Portland's nature & outdoors score of 4.8 sits well above Chicago's 3.5, with the biggest gap on mountain access. Chicago still holds an edge on beach lifestyle.

Chicago and Portland score neck-and-neck on safety (2.5 vs 2.3, 0–5 scale).

Chicago's career score of 4.7 sits well above Portland's 3.8, with the biggest gap on economic scale.

Chicago and Portland score neck-and-neck on social & community (4.0 vs 3.9, 0–5 scale).

Chicago and Portland score neck-and-neck on food & dining (4.6 vs 4.6, 0–5 scale).

Chicago and Portland score neck-and-neck on family (4.0 vs 3.9, 0–5 scale).

Chicago and Portland score neck-and-neck on healthcare (2.8 vs 2.8, 0–5 scale).

Chicago averages 8.5 µg/m³ (good) PM2.5 annually versus Portland's 6.6 µg/m³ (good) — Portland breathes ~23% cleaner air (2.0 µg/m³ lower).

Who Thrives Here