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Chill hours in 95959

The short answer

95959 averages 2,049 chill hours per winter (1,7882,193 across 10 years) in USDA zone 9a.
95959 climate
Average chill hours2,049 (1,788–2,193 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically April 8 – May 11
First fall frosttypically October 27 – November 18

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 95959’s chill hours and zone:

How many chill hours does 95959 get?
95959 averages 2049 chill hours per winter, ranging from 1788 to 2193 across the last 10 years.
What hardiness zone is 95959?
95959 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