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Chill hours in 95942

The short answer

95942 averages 1,869 chill hours per winter (1,4112,267 across 10 years) in USDA zone 9a.
95942 climate
Average chill hours1,869 (1,411–2,267 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically February 4 – April 14
First fall frosttypically November 8 – December 8

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 95942’s chill hours and zone:

How many chill hours does 95942 get?
95942 averages 1869 chill hours per winter, ranging from 1411 to 2267 across the last 10 years.
What hardiness zone is 95942?
95942 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