Cleveland
Cleveland Geography & Climate
Geography
Cleveland stands on the south shore of Lake Erie at the mouth of the Cuyahoga river, about 200 metres above sea level.
The lake
Lake Erie is the shallowest of the Great Lakes, averaging only about 19 metres deep, which makes it the warmest in summer, the first to freeze in winter and the most productive biologically. It is also why the city gets the weather it does: cold air crossing that relatively warm water picks up moisture and dumps it as lake-effect snow on the land downwind, which in this case is the eastern suburbs and the snowbelt beyond them.
The Cuyahoga
The name comes from a Mohawk word meaning crooked river, and it is: it flows north, turns almost back on itself, and enters the lake through a tight series of bends that ocean-going ships still navigate with difficulty. It has cut a steep valley, the Flats, roughly sixty metres below the surrounding plateau, which is why the city is stitched together by an unusual number of high bridges.
East and west
The valley divides Cleveland into an east side and a west side, a split that is geographic, historic and social, and which locals use constantly.
The plateau
Flat glacial till above the valley, with ridges marking the beaches of larger post-glacial lakes.
The Flats
The valley floor at the river mouth held the mills, docks and railway yards that made the city, and when industry left it became first a derelict zone and then a nightlife district, twice over. It still carries working freight terminals alongside restaurants, which means visitors regularly find themselves waiting while a lift bridge rises for a lake freighter.
The valley park
Upstream, the Cuyahoga Valley national park protects a corridor of woods, waterfalls and canal towpath between here and Akron.
Climate Patterns
Cleveland’s weather is continental with a substantial modification from the lake.
Summer
June to August is warm and humid, with highs of 26 to 29°C and nights around 17°C. The lake keeps the shoreline a few degrees cooler than inland on hot afternoons and generates a breeze, which is why the lakefront festivals work.
Winter
December to March is cold: highs of 1 to 4°C and lows well below freezing, with the lake moderating the worst of the cold until it ices over. Cleveland is among the cloudiest cities in the United States in winter, with December and January averaging very few clear days — the grey is what residents complain about more than the temperature.
Lake-effect snow
Cold air crossing the relatively warm, shallow lake picks up moisture and releases it as intense narrow bands of snow downwind. The result is a pronounced snowbelt east of the city, where annual falls can be two or three times what the west side receives, sometimes in a single event. The effect stops once Erie freezes over.
Spring and autumn
Autumn is the better of the two — warm, dry and clear into October. Spring is late, wet and changeable.
Four seasons in a day
Cleveland sits where continental air masses meet lake air, and the collision produces genuinely rapid change — a twenty-degree swing within a day is unremarkable in spring or autumn. The local saying about waiting five minutes for different weather is repeated everywhere in the world, but here it has a mechanism behind it.
Storms
Summer thunderstorms and occasional severe weather off the plains.