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Chill hours in 97466

The short answer

97466 averages 2,138 chill hours per winter (1,8042,434 across 10 years) in USDA zone 9a.
97466 climate
Average chill hours2,138 (1,804–2,434 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically March 24 – April 18
First fall frosttypically November 3 – November 28

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 97466’s chill hours and zone:

How many chill hours does 97466 get?
97466 averages 2138 chill hours per winter, ranging from 1804 to 2434 across the last 10 years.
What hardiness zone is 97466?
97466 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