How many chill hours does 93645 get?

93645 averages 1485 chill hours per winter, ranging from 1244 to 1713 across the last 10 years.

What hardiness zone is 93645?

93645 is in USDA hardiness zone 9a.

Location almanac

The short answer

93645 averages 1,485 chill hours per winter (1,244–1,713 across 10 years) in USDA zone 9a.

93645 climate
Average chill hours	1,485 (1,244–1,713 across 10 winters)
USDA hardiness zone	9a
Last spring frost	typically March 11 – April 9
First fall frost	typically November 10 – December 5

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 93645’s chill hours and zone:

Chill and zone requirements are comfortably met in 93645.

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How many chill hours does 93645 get?: 93645 averages 1485 chill hours per winter, ranging from 1244 to 1713 across the last 10 years.
What hardiness zone is 93645?: 93645 is in USDA hardiness zone 9a.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026