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Chill hours in 57465

The short answer

57465 averages 1,136 chill hours per winter (6521,381 across 10 years) in USDA zone 4a.
57465 climate
Average chill hours1,136 (652–1,381 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 22 – May 10
First fall frosttypically October 7 – November 7

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 57465’s chill hours and zone:

How many chill hours does 57465 get?
57465 averages 1136 chill hours per winter, ranging from 652 to 1381 across the last 10 years.
What hardiness zone is 57465?
57465 is in USDA hardiness zone 4a.

Growing fruit trees in 57465? Get a care calendar anchored to this exact climate, with email reminders.

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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