CARIBOU, Maine (AP) — Northern Maine already had a dusting of snow. Now residents are poised for the season's first accumulation of the white stuff.

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The National Weather Service says up to 3 inches of snow is expected Thursday night and Friday morning as the temperature drops into the 20s. It's part of a wave of cold air that's going to send temperatures plummeting into the teens by Friday night.

The snow is actually behind schedule.

Northern Maine typically sees its first snowfall in October, but the entire state was basking in record warmth last month. The average temperature in Caribou last month was more than 8 degrees warmer than normal.