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Chill hours in 39466

The short answer

39466 averages 508 chill hours per winter (299678 across 10 years) in USDA zone 9a.
39466 climate
Average chill hours508 (299–678 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 19 – March 13
First fall frosttypically November 13 – December 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 39466’s chill hours and zone:

Marginal (7)

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

Marginal varieties for this location
VarietyFruit
MoorparkApricot
Puget GoldApricot
TiltonApricot
FlavortopNectarine
JunegoldPeach
ComicePear
WarrenPear
How many chill hours does 39466 get?
39466 averages 508 chill hours per winter, ranging from 299 to 678 across the last 10 years.
What hardiness zone is 39466?
39466 is in USDA hardiness zone 9a.

Growing fruit trees in 39466? Get a care calendar anchored to this exact climate, with email reminders.

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Sources

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