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Chill hours in 93532

The short answer

93532 averages 2,063 chill hours per winter (1,6352,473 across 10 years) in USDA zone 9a.
93532 climate
Average chill hours2,063 (1,635–2,473 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically March 31 – May 11
First fall frosttypically October 31 – December 4

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 93532’s chill hours and zone:

How many chill hours does 93532 get?
93532 averages 2063 chill hours per winter, ranging from 1635 to 2473 across the last 10 years.
What hardiness zone is 93532?
93532 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