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Iowa · source coverage

Iowa
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 references150
Seasonal-model references145
Census places searchable1,026

Find your local climate reference

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

Choose a state to search the national Census place inventory.

    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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    Iowa weather stations

    5 references do not support an ordinary annual freeze calendar.

    All 150 stations

    Albia 3 Nne

    Seasonal reference

    Conditional spring median Apr 24

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    Algona

    Seasonal reference

    Conditional spring median Apr 30

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    Allerton

    Seasonal reference

    Conditional spring median Apr 21

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    Allison

    Seasonal reference

    Conditional spring median Apr 27

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    Ames 5 Se

    Seasonal reference

    Conditional spring median Apr 26

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    Ames 8 Wsw

    Seasonal reference

    Conditional spring median Apr 23

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    Ames MUNI AP

    Seasonal reference

    Conditional spring median Apr 26

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    Anamosa 1 Wnw

    Seasonal reference

    Conditional spring median May 1

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    Anamosa 3 Ssw

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    Limited-quality reference

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    Ankeny

    Seasonal reference

    Conditional spring median Apr 23

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    Atlantic 1 Ne

    Seasonal reference

    Conditional spring median Apr 30

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    Audubon

    Seasonal reference

    Conditional spring median May 2

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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.

    Explore crop evidence