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Chill hours in 39565

The short answer

39565 averages 504 chill hours per winter (299649 across 10 years) in USDA zone 9a.
39565 climate
Average chill hours504 (299–649 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 39565’s chill hours and zone:

Marginal (6)

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

Marginal varieties for this location
VarietyFruit
MoorparkApricot
Puget GoldApricot
TiltonApricot
JunegoldPeach
ComicePear
WarrenPear
How many chill hours does 39565 get?
39565 averages 504 chill hours per winter, ranging from 299 to 649 across the last 10 years.
What hardiness zone is 39565?
39565 is in USDA hardiness zone 9a.

Growing fruit trees in 39565? 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