NOAA-supported National Phenology Network data shows plants leafing out 10-20 days earlier than normal

The USA-National Phenology Network is tracking the start of the spring season across the country using models called the Spring Leaf and Bloom Indices. HOW DOES THIS YEAR STACK UP AGAINST THE RECENT PAST? We can evaluate whether spring is arriving early, late, or right on time this year at a location by comparing the day of year the Spring Leaf Index requirements were...

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