How's the weather in Idaho?

How is the weather in Idaho in the winter, spring, summer, and fall?

I'm thinking about moving there, and going to grad school.
Thanks. 10 Points.

Answers:
Depends where you go.

SE Idaho is a bit extreme.
Winter- long and very, very cold. Used to live in Rexburg. Had snow from November to April.
Spring- kind of cold. A bit unpredictable. Can be cold one day and warm the next.
Summer- hot and dry. Temps at their highest are about 100F. Humidity is usually quite low.
Fall- don't remember. It seemed a bit unpredictable too.

SW Idaho (Boise area):
Winter- mild. If it snows (that's IF), the snow usually melts after a day or two. Can get foggy sometimes.
Spring- mild. Sometimes you get rain. Sometimes a bit windy. But it never snows.
Summer- hot and dry. Temps have been as high as 115F. Humidity is usually between 15 - 30%. Sometimes humidity is higher. Summer time can also bring smog if there is an inversion in the atmosphere.
Fall- Warm in September and first half of October. Then it gets colder.

South Central Idaho:
It's a mix between SW and SE Idaho.

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