How many chill hours does 34638 get?

34638 averages 138 chill hours per winter, ranging from 61 to 234 across the last 10 years.

What hardiness zone is 34638?

34638 is in USDA hardiness zone 9b.

Location almanac

The short answer

34638 averages 138 chill hours per winter (61–234 across 10 years) in USDA zone 9b.

34638 climate
Average chill hours	138 (61–234 across 10 winters)
USDA hardiness zone	9b

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 34638’s chill hours and zone:

Chill and zone requirements are comfortably met in 34638.

Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 34638 get?: 34638 averages 138 chill hours per winter, ranging from 61 to 234 across the last 10 years.
What hardiness zone is 34638?: 34638 is in USDA hardiness zone 9b.

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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