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New Hampshire · source coverage

New Hampshire
frost date references.

Explore the historical NOAA stations behind the dates. See which references support a seasonal model, and where that model would be misleading.

Station references55
Seasonal-model references40
Census places searchable100

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Choose a state, then search its cities, towns and Census-designated places.

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    Census places are not ZIP codes. A nearby station is a reference, not a garden-level measurement. Distance and data limitations are shown before any calculation.

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    New Hampshire weather stations

    15 references do not support an ordinary annual freeze calendar.

    All 55 stations

    Benton 5 Sw

    Seasonal reference

    Conditional spring median May 15

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    Berlin MUNI AP

    Seasonal reference

    Conditional spring median May 30

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    Berlin

    Seasonal reference

    Conditional spring median May 14

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    Bethlehem 2

    Seasonal reference

    Conditional spring median May 24

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    Bradford 2

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    Limited-quality reference

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    Colebrook 3sw

    Seasonal reference

    Conditional spring median May 31

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    Concord MUNI AP

    Seasonal reference

    Conditional spring median May 8

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    Durham 2 N

    Seasonal reference

    Conditional spring median May 3

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    Durham 2 Ssw

    Seasonal reference

    Conditional spring median May 7

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    Durham

    Seasonal reference

    Conditional spring median May 8

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    E Milford

    Seasonal reference

    Conditional spring median Apr 28

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    E Sandwich

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    Limited-quality reference

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    Climate is only part of the answer

    Choose crops with
    regional guidance.

    A freeze date does not establish crop suitability. Our vegetable guides keep maturity, soil-temperature and planting-calendar sources tied to their actual regions.

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