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Chill hours in 93266

The short answer

93266 averages 916 chill hours per winter (6631,411 across 10 years) in USDA zone 9a.
93266 climate
Average chill hours916 (663–1,411 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 12 – February 25
First fall frosttypically December 7 – December 28

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 93266’s chill hours and zone:

How many chill hours does 93266 get?
93266 averages 916 chill hours per winter, ranging from 663 to 1411 across the last 10 years.
What hardiness zone is 93266?
93266 is in USDA hardiness zone 9a.

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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