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Chill hours in 31569

The short answer

31569 averages 375 chill hours per winter (156556 across 10 years) in USDA zone 9a.
31569 climate
Average chill hours375 (156–556 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 16 – February 22

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 31569’s chill hours and zone:

Marginal (22)

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

Marginal varieties for this location
VarietyFruit
MutsuApple
BlenheimApricot
TomcotApricot
FantasiaNectarine
GulfprincePeach
SuncrestPeach
BartlettPear
BoscPear
ChojuroPear
MoonglowPear
ShinkoPear
Dapple DandyPlum
Elephant HeartPlum
Flavor KingPlum
ShiroPlum
BrooksSweet Cherry
Craig's CrimsonSweet Cherry
LapinsSweet Cherry
Royal RainierSweet Cherry
StellaSweet Cherry
English MorelloTart Cherry
Evans BaliTart Cherry
How many chill hours does 31569 get?
31569 averages 375 chill hours per winter, ranging from 156 to 556 across the last 10 years.
What hardiness zone is 31569?
31569 is in USDA hardiness zone 9a.

Growing fruit trees in 31569? 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