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Chill hours in 54629

The short answer

54629 averages 1,320 chill hours per winter (1,1351,586 across 10 years) in USDA zone 4b.
54629 climate
Average chill hours1,320 (1,135–1,586 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 22 – April 28
First fall frosttypically October 17 – November 14

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 54629’s chill hours and zone:

How many chill hours does 54629 get?
54629 averages 1320 chill hours per winter, ranging from 1135 to 1586 across the last 10 years.
What hardiness zone is 54629?
54629 is in USDA hardiness zone 4b.

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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