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Chill hours in 95929

The short answer

95929 averages 1,088 chill hours per winter (9321,533 across 10 years) in USDA zone 9a.
95929 climate
Average chill hours1,088 (932–1,533 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically February 3 – March 20
First fall frosttypically November 20 – December 16

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 95929’s chill hours and zone:

How many chill hours does 95929 get?
95929 averages 1088 chill hours per winter, ranging from 932 to 1533 across the last 10 years.
What hardiness zone is 95929?
95929 is in USDA hardiness zone 9a.

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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