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Chill hours in 71358

The short answer

71358 averages 499 chill hours per winter (246610 across 10 years) in USDA zone 9a.
71358 climate
Average chill hours499 (246–610 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 19 – March 7
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 71358’s chill hours and zone:

Marginal (18)

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

Marginal varieties for this location
VarietyFruit
MutsuApple
MoorparkApricot
Puget GoldApricot
TiltonApricot
TomcotApricot
FantasiaNectarine
JunegoldPeach
SuncrestPeach
BartlettPear
BoscPear
ComicePear
WarrenPear
Elephant HeartPlum
BrooksSweet Cherry
Craig's CrimsonSweet Cherry
LapinsSweet Cherry
Royal RainierSweet Cherry
English MorelloTart Cherry
How many chill hours does 71358 get?
71358 averages 499 chill hours per winter, ranging from 246 to 610 across the last 10 years.
What hardiness zone is 71358?
71358 is in USDA hardiness zone 9a.

Growing fruit trees in 71358? 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