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Chill hours in 95979

The short answer

95979 averages 1,290 chill hours per winter (9451,947 across 10 years) in USDA zone 9a.
95979 climate
Average chill hours1,290 (945–1,947 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 29 – April 7
First fall frosttypically November 25 – December 15

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 95979’s chill hours and zone:

How many chill hours does 95979 get?
95979 averages 1290 chill hours per winter, ranging from 945 to 1947 across the last 10 years.
What hardiness zone is 95979?
95979 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