How many chill hours does 84103 get?

84103 averages 1436 chill hours per winter, ranging from 952 to 1765 across the last 10 years.

What hardiness zone is 84103?

84103 is in USDA hardiness zone 6b.

Location almanac

The short answer

84103 averages 1,436 chill hours per winter (952–1,765 across 10 years) in USDA zone 6b.

84103 climate
Average chill hours	1,436 (952–1,765 across 10 winters)
USDA hardiness zone	6b
Last spring frost	typically May 1 – May 25
First fall frost	typically September 30 – October 31

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 84103’s chill hours and zone:

Chill and zone requirements are comfortably met in 84103.

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How many chill hours does 84103 get?: 84103 averages 1436 chill hours per winter, ranging from 952 to 1765 across the last 10 years.
What hardiness zone is 84103?: 84103 is in USDA hardiness zone 6b.

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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