When will the first snowfall happen where you live? See our U.S. first snow map and typical first snowfall timing from September through winter.

Why are old houses divided into so many small rooms? From keeping warm in winter to controlling cooking smells and creating ...

When should you stop mowing your lawn for winter? See the best temperature, final mowing height, and typical last-mow timing ...

They did not arrive overnight. Their colonies have been growing since spring—and by late summer, thousands of hungry workers ...

The calendar says fall begins on one date. Meteorologists say another. But trees, birds, butterflies, and frost may tell an ...

The Atlantic hurricane season reaches its climatological peak around September 10. Here’s why storms are historically most ...

Why are September mornings suddenly chilly while afternoons stay warm? Longer nights, radiational cooling, and lingering ...

Can you really balance an egg only on the fall equinox? Discover the surprising truth behind the famous equinox egg-balancing ...

September stars can suddenly appear brighter and sharper. Here’s how darker evenings, lower humidity, clearer air, Moon ...

Don’t wait for frost to bring houseplants indoors. Learn which plants should come inside at 50°F, which tolerate chilly ...

What are some traditional September weather sayings? Old favorites include “September blow soft, till the fruit’s in the loft ...