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In Hamilton County, July highs average about 88°F and January lows about 30°F, with roughly 57 inches of rain a year.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, flash floods and hailstorms in Hamilton County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
Hamilton County has had 17 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Winter Storm (2026).
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These are Hamilton County figures — more about homes in Chattanooga.
Walden · Red Bank · Chattanooga · Powells Crossroads · Ridgeside · Lookout Mountain · Whitwell · East Ridge