How many chill hours does 40858 get?

40858 averages 1350 chill hours per winter, ranging from 1106 to 1698 across the last 10 years.

What hardiness zone is 40858?

40858 is in USDA hardiness zone 7a.

Location almanac

The short answer

40858 averages 1,350 chill hours per winter (1,106–1,698 across 10 years) in USDA zone 7a.

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 40858’s chill hours and zone:

Chill and zone requirements are comfortably met in 40858.

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How many chill hours does 40858 get?: 40858 averages 1350 chill hours per winter, ranging from 1106 to 1698 across the last 10 years.
What hardiness zone is 40858?: 40858 is in USDA hardiness zone 7a.

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