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Chill hours in V9V

The short answer

V9V averages 2,875 chill hours per winter (2,5333,260 across 10 years) in USDA zone 9a.
V9V climate
Average chill hours2,875 (2,533–3,260 across 10 winters)
USDA hardiness zone9a (NRCan zone 8b)
Last spring frosttypically January 9 – March 26
First fall frosttypically November 6 – December 17

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023 / NRCan 1981–2010. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against V9V’s chill hours and zone:

How many chill hours does V9V get?
V9V averages 2875 chill hours per winter, ranging from 2533 to 3260 across the last 10 years.
What hardiness zone is V9V?
V9V 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] Natural Resources Canada. Plant Hardiness Zones of Canada — accessed July 2026