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Chill hours in 36539

The short answer

36539 averages 629 chill hours per winter (379777 across 10 years) in USDA zone 8b.
36539 climate
Average chill hours629 (379–777 across 10 winters)
USDA hardiness zone8b
Last spring frosttypically January 30 – March 13
First fall frosttypically November 15 – December 9

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 36539’s chill hours and zone:

Marginal (25)

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

Marginal varieties for this location
VarietyFruit
BraeburnApple
GravensteinApple
JonagoldApple
JonathanApple
Red DeliciousApple
HarcotApricot
Wenatchee MoorparkApricot
FlavortopNectarine
IndependenceNectarine
Belle of GeorgiaPeach
ElbertaPeach
FlameprincePeach
FrostPeach
HarvesterPeach
LoringPeach
O'HenryPeach
RedglobePeach
RedskinPeach
Flavor SupremePlum
Green GagePlum
BingSweet Cherry
Black TartarianSweet Cherry
RainierSweet Cherry
VanSweet Cherry
Early RichmondTart Cherry
How many chill hours does 36539 get?
36539 averages 629 chill hours per winter, ranging from 379 to 777 across the last 10 years.
What hardiness zone is 36539?
36539 is in USDA hardiness zone 8b.

Growing fruit trees in 36539? 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