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Chill hours in 75928

The short answer

75928 averages 514 chill hours per winter (225646 across 10 years) in USDA zone 9a.
75928 climate
Average chill hours514 (225–646 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 18 – March 6
First fall frosttypically November 13 – December 20

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 75928’s chill hours and zone:

Marginal (6)

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

Marginal varieties for this location
VarietyFruit
MoorparkApricot
Puget GoldApricot
TiltonApricot
JunegoldPeach
ComicePear
WarrenPear
How many chill hours does 75928 get?
75928 averages 514 chill hours per winter, ranging from 225 to 646 across the last 10 years.
What hardiness zone is 75928?
75928 is in USDA hardiness zone 9a.

Growing fruit trees in 75928? 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