(CNN) Fall officially began on September 23, but clearly Mother Nature had other plans.

The first few days of the season haven't felt much like fall at all for many across the United States. From snow storms to heat waves — hello? Did we miss something? What happened to mild temperatures and colorful leaves?

Here's a look at three wild weather events that marked the start of season.

Record-breaking snowfall in the Northwest

"This has never happened, ever," said Ray Greely, a meteorologist with the National Weather Service in Great Falls, Montana, about the September snowfall. The city got 9.7 inches of snow on September 28 — the highest one-day September snow amount in Great Falls history.

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