Will we have snow on the ground for Christmas? Maybe!

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Growing up in Northern Utah, I've become quite accustomed to seeing snow on the ground Christmas Day. Now that I live in the Treasure Valley, I'm learning it isn't something that's common here.

However, if you look at the amount of snow depth on the ground Christmas Day for the past ten years, five out of the last ten have had an inch or more on Christmas Day. Those are pretty good odds considering reports dating back to 1877 show the probability of having snow on the ground is just 26%. Average snow depth for Christmas Day is 0 inches.

So, what is it looking like this year? Right now, it looks like we only have one more chance at snowfall in the valley before Christmas. A storm system will move down from the Gulf of Alaska late Tuesday night into Wednesday morning. Ahead of the front, we'll see a warm-up on Tuesday under southwesterly flow, melting any remaining snow lingering in the valleys from our weekend storm system. The storm will bring some snow accumulation to lower elevations, but amounts look slim. Hopefully, early projections are wrong, if they're not, we'll likely see an inch or less in many locations. We'll know more as the storm moves closer.

After Wednesday's storm, models are showing a blast of cold, dry, air moving down from Canada and this pattern will likely hold through Christmas Day. The cold air will keep temperatures below freezing and could keep any snow from Wednesday on the ground through Christmas Day.

Boise Christmas Weather Data

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