How many chill hours does 72020 get?

72020 averages 1200 chill hours per winter, ranging from 1001 to 1515 across the last 10 years.

What hardiness zone is 72020?

72020 is in USDA hardiness zone 8a.

Location almanac

The short answer

72020 averages 1,200 chill hours per winter (1,001–1,515 across 10 years) in USDA zone 8a.

72020 climate
Average chill hours	1,200 (1,001–1,515 across 10 winters)
USDA hardiness zone	8a
Last spring frost	typically February 26 – March 20
First fall frost	typically November 1 – December 1

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 72020’s chill hours and zone:

Chill and zone requirements are comfortably met in 72020.

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How many chill hours does 72020 get?: 72020 averages 1200 chill hours per winter, ranging from 1001 to 1515 across the last 10 years.
What hardiness zone is 72020?: 72020 is in USDA hardiness zone 8a.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026