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Chill hours in 95612

The short answer

95612 averages 936 chill hours per winter (7241,417 across 10 years) in USDA zone 9b.
95612 climate
Average chill hours936 (724–1,417 across 10 winters)
USDA hardiness zone9b
Last spring frosttypically January 26 – February 21
First fall frosttypically November 21 – December 22

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 95612’s chill hours and zone:

How many chill hours does 95612 get?
95612 averages 936 chill hours per winter, ranging from 724 to 1417 across the last 10 years.
What hardiness zone is 95612?
95612 is in USDA hardiness zone 9b.

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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