❄When Is the Last Frost?

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New Hampshire frost dates: U

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City	Last frost	First frost	Season	Zone
Union	May 16	Sep 30	137 d	5b

A B C D E F G H I J K L M N O P R S T U W

When Is the Last Frost — frost dates and planting calendars for every US ZIP code, from NOAA 1991–2020 climate normals.

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