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Chill hours in 89129

The short answer

89129 averages 883 chill hours per winter (5311,302 across 10 years) in USDA zone 9a.
89129 climate
Average chill hours883 (531–1,302 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 12 – February 25
First fall frosttypically November 26 – December 14

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 89129’s chill hours and zone:

Marginal (2)

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

Marginal varieties for this location
VarietyFruit
CresthavenPeach
RedhavenPeach
How many chill hours does 89129 get?
89129 averages 883 chill hours per winter, ranging from 531 to 1302 across the last 10 years.
What hardiness zone is 89129?
89129 is in USDA hardiness zone 9a.

Growing fruit trees in 89129? 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