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Chill hours in 39564

The short answer

39564 averages 368 chill hours per winter (185496 across 10 years) in USDA zone 9a.
39564 climate
Average chill hours368 (185–496 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 19 – February 20

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 39564’s chill hours and zone:

Marginal (10)

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

Marginal varieties for this location
VarietyFruit
BlenheimApricot
GulfprincePeach
ChojuroPear
MoonglowPear
ShinkoPear
Dapple DandyPlum
Flavor KingPlum
ShiroPlum
StellaSweet Cherry
Evans BaliTart Cherry
How many chill hours does 39564 get?
39564 averages 368 chill hours per winter, ranging from 185 to 496 across the last 10 years.
What hardiness zone is 39564?
39564 is in USDA hardiness zone 9a.

Growing fruit trees in 39564? 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