BBield
Weather & climateNOAA NCDC

NOAA climate normals (1991–2020)

30-year frost-date probability and growing-degree-day baselines.

The NOAA 1991–2020 US Climate Normals — 30-year averages for temperature, precipitation, and derived agricultural indicators. The statistical backbone of Bield: Farm's frost-date probabilities and growing-degree-day modeling.

  • Coverage

    ~9,800 GHCN stations across the United States

  • Refresh cadence

    Updated by NOAA every 10 years; next refresh ~2031

  • Status

    Live in production

  • Agency

    NOAA NCDC

Used in Bield

Where this dataset shows up in the apps.

  • Bield: Farm

    Frost dates

    County-level p10–p90 frost probability bands.

    See it in Farm

  • Bield: Farm

    Growing-degree-day base

    Long-term GDD averages per crop.

More in weather & climate

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