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Chill hours in 96051

The short answer

96051 averages 2,131 chill hours per winter (1,8912,328 across 10 years) in USDA zone 9a.
96051 climate
Average chill hours2,131 (1,891–2,328 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically April 14 – May 11
First fall frosttypically October 12 – November 10

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 96051’s chill hours and zone:

How many chill hours does 96051 get?
96051 averages 2131 chill hours per winter, ranging from 1891 to 2328 across the last 10 years.
What hardiness zone is 96051?
96051 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