Portland vs St. Louis

Portland

Portland has a cool marine climate — famously rainy, but not in the way visitors expect. The rain is a persistent drizzle, not heavy downpours. Portland actually receives less annual rainfall (about 36 inches) than New York or Houston, but it is spread over 150+ rainy days from October through May. Summers (July through September) are gloriously dry, sunny, and warm. Winter brings occasional snow that typically melts within a day or two.

St. Louis

St. Louis has a humid continental climate at the southern edge — hot, humid summers (heat index regularly above 38°C / 100°F in July–August), cold winters with occasional ice storms, and dramatic spring weather including tornado risk in March–May. The city sits in the lower Tornado Alley and has a functional warning siren system. Spring (April–May) and autumn (September–October) are the only months without weather extremes.

Portland

Portland has the most useful public transit of any city its size on the West Coast. MAX light rail (5 lines) connects the airport, downtown, and key suburbs. The Portland Streetcar loops through downtown, the Pearl, and east side neighborhoods. TriMet buses fill in the gaps. Within individual neighborhoods — Pearl, Hawthorne, Alberta, Mississippi, NW 23rd — walking is the right answer. Portland is also one of the best US cycling cities with protected lanes and a cyclists-first culture.

Walkability: Portland is one of the most walkable large cities in the American West — grid-patterned, flat on the east side, and most interesting neighborhoods (Pearl, NW 23rd, Hawthorne, Division, Alberta, Mississippi, Belmont) have dense commercial strips. Downtown blocks are short (only 200 ft) which makes walking feel quicker. Expect rain 9 months of the year — a good waterproof shell is more useful than an umbrella in the Portland wind.

St. Louis

St. Louis is a driving city — the metro area sprawls 60 miles end-to-end and the dominant mode of transport is the private car. The MetroLink light rail (two lines, blue and red) connects the airport, downtown, Forest Park, Clayton, and East St. Louis on a single useful axis; MetroBus covers the rest. Most visitors rent a car for at least part of their stay, particularly to reach The Hill, Soulard, and the Botanical Garden. Uber and Lyft operate everywhere and are inexpensive ($8–$25 for most trips within the city).

Walkability: Inside individual neighbourhoods (Soulard, The Hill, Central West End, Forest Park) walking is excellent. Between neighbourhoods St. Louis is a driving city — distances are real Midwest distances and surface streets are fast but built for cars, not pedestrians. The Delmar Loop in University City is the longest pure pedestrian commercial strip; the Old Courthouse-to-Arch riverfront is the most photogenic walk.