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Chill hours in 93286

The short answer

93286 averages 1,201 chill hours per winter (9701,570 across 10 years) in USDA zone 9b.
93286 climate
Average chill hours1,201 (970–1,570 across 10 winters)
USDA hardiness zone9b
Last spring frosttypically February 4 – April 5
First fall frosttypically November 29 – December 21

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 93286’s chill hours and zone:

How many chill hours does 93286 get?
93286 averages 1201 chill hours per winter, ranging from 970 to 1570 across the last 10 years.
What hardiness zone is 93286?
93286 is in USDA hardiness zone 9b.

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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