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Chill hours in 78669

The short answer

78669 averages 587 chill hours per winter (298815 across 10 years) in USDA zone 8b.
78669 climate
Average chill hours587 (298–815 across 10 winters)
USDA hardiness zone8b
Last spring frosttypically January 11 – March 6
First fall frosttypically November 1 – December 18

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 78669’s chill hours and zone:

Marginal (52)

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

Marginal varieties for this location
VarietyFruit
AkaneApple
BraeburnApple
Cox's Orange PippinApple
EmpireApple
Golden DeliciousApple
GravensteinApple
JonagoldApple
JonathanApple
LibertyApple
Red DeliciousApple
SpartanApple
WealthyApple
WinesapApple
Yellow TransparentApple
GoldcotApricot
HarcotApricot
MoorparkApricot
Puget GoldApricot
TiltonApricot
Wenatchee MoorparkApricot
FlavortopNectarine
HarkoNectarine
IndependenceNectarine
MericrestNectarine
Belle of GeorgiaPeach
ElbertaPeach
FlameprincePeach
FrostPeach
HarvesterPeach
JunegoldPeach
Show 22 more marginal varieties
How many chill hours does 78669 get?
78669 averages 587 chill hours per winter, ranging from 298 to 815 across the last 10 years.
What hardiness zone is 78669?
78669 is in USDA hardiness zone 8b.

Growing fruit trees in 78669? 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