Spring Arrives Overnight in Fairbanks, Alaska
In Fairbanks, Alaska, spring happens overnight In many places, spring happens gradually. But in far-north Fairbanks, Alaska, birch and aspen trees often put their leaves out over a span of just 24-48 hours, a dramatic event known as "greenup."
In most places, spring unfolds slowly, with buds and shoots appearing over weeks. In Fairbanks, Alaska, that change can happen almost instantly: stands of birch and aspen commonly leaf out within a 24–48 hour window. This rapid, dramatic burst of green—locally called "greenup"—can transform a brown, dormant landscape into a living one in a single day or two.
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