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Chill hours in 59276

The short answer

59276 averages 1,144 chill hours per winter (6891,377 across 10 years) in USDA zone 3b.
59276 climate
Average chill hours1,144 (689–1,377 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 29 – May 21
First fall frosttypically September 21 – 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 59276’s chill hours and zone:

How many chill hours does 59276 get?
59276 averages 1144 chill hours per winter, ranging from 689 to 1377 across the last 10 years.
What hardiness zone is 59276?
59276 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