How many chill hours does 99040 get?

99040 averages 1740 chill hours per winter, ranging from 1212 to 2214 across the last 10 years.

What hardiness zone is 99040?

99040 is in USDA hardiness zone 7a.

Location almanac

The short answer

99040 averages 1,740 chill hours per winter (1,212–2,214 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 99040’s chill hours and zone:

Chill and zone requirements are comfortably met in 99040.

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How many chill hours does 99040 get?: 99040 averages 1740 chill hours per winter, ranging from 1212 to 2214 across the last 10 years.
What hardiness zone is 99040?: 99040 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