How many chill hours does 99030 get?

99030 averages 1863 chill hours per winter, ranging from 1325 to 2292 across the last 10 years.

What hardiness zone is 99030?

99030 is in USDA hardiness zone 6b.

Location almanac

The short answer

99030 averages 1,863 chill hours per winter (1,325–2,292 across 10 years) in USDA zone 6b.

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 99030’s chill hours and zone:

Chill and zone requirements are comfortably met in 99030.

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How many chill hours does 99030 get?: 99030 averages 1863 chill hours per winter, ranging from 1325 to 2292 across the last 10 years.
What hardiness zone is 99030?: 99030 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