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Chill hours in 59275

The short answer

59275 averages 1,119 chill hours per winter (6331,369 across 10 years) in USDA zone 3b.
59275 climate
Average chill hours1,119 (633–1,369 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 24 – May 19
First fall frosttypically September 28 – October 15

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 59275’s chill hours and zone:

How many chill hours does 59275 get?
59275 averages 1119 chill hours per winter, ranging from 633 to 1369 across the last 10 years.
What hardiness zone is 59275?
59275 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