Killing frost in the Northeast tonight

May 10, 2010; 3:22 PM ET
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An Eastern chilly spell will culminate in a widespread frost and freeze over the interior Northeast late Monday night into early Tuesday.

The area of widespread killing freeze, mostly 30 F and below, will span interior New England and most of New York state outside of the bigger cities. It will also reach into northern Pennsylvania and even along the Allegheny Highland into Maryland and West Virginia.

Cold spots as far south as northern Virginia, central Maryland, southeastern Pennsylvania and central New Jersey will have frost, which will put any tender vegetation at risk for damage.

Spring thus far has been unusually warm with above-normal "growing degree days" in the Northeast. Perennial vegetation is more advanced than usual. Moreover, some gardeners have taken advantage of the early warmth to get flower and vegetable gardens under way.

Now, killing frosts threaten at a time near, if not one or two weeks after, the average date of the last killing frost. Needless to say, growers and gardeners having susceptible plants may wish to take action to afford protection for plants having early growth.

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