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Chill hours in 94619

The short answer

94619 averages 1,091 chill hours per winter (9231,682 across 10 years) in USDA zone 10a.
94619 climate
Average chill hours1,091 (923–1,682 across 10 winters)
USDA hardiness zone10a
Last spring frosttypically January 6 – February 23

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 94619’s chill hours and zone:

How many chill hours does 94619 get?
94619 averages 1091 chill hours per winter, ranging from 923 to 1682 across the last 10 years.
What hardiness zone is 94619?
94619 is in USDA hardiness zone 10a.

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Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026