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California · source coverage

California
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 references373
Seasonal-model references281
Census places searchable1,622

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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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    California weather stations

    92 references do not support an ordinary annual freeze calendar.

    All 373 stations

    Adin Rs

    Seasonal reference

    Conditional spring median May 28

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    Alpine

    Seasonal reference

    Conditional spring median Feb 12

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    Alturas MUNI AP

    Seasonal reference

    Conditional spring median Jun 3

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    Alturas

    Seasonal reference

    Conditional spring median Jun 3

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    Anaheim

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    Infrequent freezing; no seasonal date

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    Angwin Pacific Union College

    Seasonal reference

    Conditional spring median Apr 7

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    Antioch Pumping Plt #3

    Seasonal reference

    Conditional spring median Jan 12

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    Arcata Eureka AP

    Seasonal reference

    Conditional spring median Mar 8

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    Ash Mtn

    Seasonal reference

    Conditional spring median Mar 12

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    Auberry 2 Nw

    Seasonal reference

    Conditional spring median Mar 25

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    Auburn

    Seasonal reference

    Conditional spring median Feb 25

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    Avalon Catalina AP

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    No modeled annual freeze occurrence

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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