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Chill hours in 95681

The short answer

95681 averages 1,005 chill hours per winter (8371,469 across 10 years) in USDA zone 9b.
95681 climate
Average chill hours1,005 (837–1,469 across 10 winters)
USDA hardiness zone9b
Last spring frosttypically January 10 – March 6
First fall frosttypically November 26 – December 11

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 95681’s chill hours and zone:

How many chill hours does 95681 get?
95681 averages 1005 chill hours per winter, ranging from 837 to 1469 across the last 10 years.
What hardiness zone is 95681?
95681 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