How many chill hours does 84003 get?

84003 averages 801 chill hours per winter, ranging from 503 to 1014 across the last 10 years.

What hardiness zone is 84003?

84003 is in USDA hardiness zone 6a.

Location almanac

The short answer

84003 averages 801 chill hours per winter (503–1,014 across 10 years) in USDA zone 6a.

84003 climate
Average chill hours	801 (503–1,014 across 10 winters)
USDA hardiness zone	6a
Last spring frost	typically June 2 – June 23
First fall frost	typically September 12 – September 25

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 84003’s chill hours and zone:

Chill and zone requirements are comfortably met in 84003.

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Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 84003 get?: 84003 averages 801 chill hours per winter, ranging from 503 to 1014 across the last 10 years.
What hardiness zone is 84003?: 84003 is in USDA hardiness zone 6a.

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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