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Chill hours in 59261

The short answer

59261 averages 1,218 chill hours per winter (7181,456 across 10 years) in USDA zone 3b.
59261 climate
Average chill hours1,218 (718–1,456 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 28 – May 20
First fall frosttypically October 2 – October 24

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 59261’s chill hours and zone:

How many chill hours does 59261 get?
59261 averages 1218 chill hours per winter, ranging from 718 to 1456 across the last 10 years.
What hardiness zone is 59261?
59261 is in USDA hardiness zone 3b.

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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