How many chill hours does 97865 get?

97865 averages 1917 chill hours per winter, ranging from 1515 to 2195 across the last 10 years.

What hardiness zone is 97865?

97865 is in USDA hardiness zone 6b.

Location almanac

The short answer

97865 averages 1,917 chill hours per winter (1,515–2,195 across 10 years) in USDA zone 6b.

97865 climate
Average chill hours	1,917 (1,515–2,195 across 10 winters)
USDA hardiness zone	6b
Last spring frost	typically April 17 – May 23
First fall frost	typically September 28 – October 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 97865’s chill hours and zone:

Chill and zone requirements are comfortably met in 97865.

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How many chill hours does 97865 get?: 97865 averages 1917 chill hours per winter, ranging from 1515 to 2195 across the last 10 years.
What hardiness zone is 97865?: 97865 is in USDA hardiness zone 6b.

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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