Every fall in Minnesota, there's a week when we collectively realize the warm weather is actually over.

The furnace starts running regularly. Windows stay closed. Jackets come out. And suddenly your house starts revealing things you haven't thought about since last winter.

Instead of simply turning up the thermostat, pay attention to what your home is telling you.

One Room Is Suddenly Colder Than the Others

If one room consistently feels colder, there could be several explanations.

Airflow, insulation, windows, room location, heating design, and other factors can all affect temperature.

You don't need to diagnose it yourself. Start by noticing whether it's an occasional issue or a consistent pattern.

You Can Feel Air Around Windows and Doors

A draft that's almost impossible to notice in August becomes pretty obvious when it's 30 degrees outside.

Check weather stripping and obvious gaps around exterior doors and windows.

Some air-sealing projects are relatively simple. Others may require professional help.

You're Seeing Window Condensation

Some condensation can occur as indoor and outdoor temperatures and humidity levels change.

But persistent or excessive moisture is worth paying attention to.

Notice which windows are affected and how frequently it occurs. Managing indoor humidity and understanding the condition of your windows can be part of the solution.

The Furnace Seems to Run Constantly

Your heating system will obviously run more as temperatures fall.

But if it seems unusual, you're hearing new noises, the house isn't reaching the thermostat setting, or certain rooms aren't staying comfortable, it may be worth having the system checked.

Doors Suddenly Behave Differently

Homes move and materials expand and contract with changes in temperature and humidity.

You may notice a door sticking, a gap becoming more obvious, or another small seasonal change.

Again, one sticky door isn't automatically evidence of a serious issue.

Pay attention to changes and patterns.

Your Home Is Giving You a Trial Run

Think of the first cold week as your home's practice round before January.

This is your opportunity to notice drafts, heating concerns, humidity issues, and uncomfortable rooms while winter is just getting started.

Pay attention now.

Minnesota will provide a much more demanding test soon enough.