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Weather and your home

In St. Louis County, July highs average about 88°F and January lows about 23°F, with roughly 42 inches of rain a year.

Storms

Over the last 10 years the National Weather Service recorded hailstorms, damaging thunderstorm winds and flash floods in St. Louis County, with hail up to 2.5 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.

Homes here

The typical home in St. Louis County was built around 1965, about 61 years ago, and 72% were built before 1980. Homes that age often need updated wiring, plumbing and roofs.

Disaster history

St. Louis County has had 22 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025).

Services

Roof repair in Cool Valley · AC & heating repair in Cool Valley · Plumbing in Cool Valley · Electrical in Cool Valley · Gutters in Cool Valley · Pest control in Cool Valley · Lawn care in Cool Valley · Pool service in Cool Valley · Siding in Cool Valley · Windows & doors in Cool Valley · Solar in Cool Valley · Generators in Cool Valley · Insulation in Cool Valley · Remodeling in Cool Valley · Kitchen remodeling in Cool Valley · Bathroom remodeling in Cool Valley · Painting in Cool Valley · Flooring in Cool Valley · Drywall in Cool Valley · Concrete & pavers in Cool Valley · Fencing in Cool Valley · Decks in Cool Valley · Tree service in Cool Valley · Pressure washing in Cool Valley · House cleaning in Cool Valley · Junk removal in Cool Valley · Garage doors in Cool Valley · Appliance repair in Cool Valley · Water & mold restoration in Cool Valley · Foundation repair in Cool Valley · Handyman in Cool Valley

These are St. Louis County figures — more about homes in Florissant.

Nearby

Bellerive Acres · Pasadena Park · Norwood Court · Normandy · Pasadena Hills · Kinloch · Bel-Ridge · Country Club Hills