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Chill hours in 59263

The short answer

59263 averages 1,158 chill hours per winter (7481,398 across 10 years) in USDA zone 3b.
59263 climate
Average chill hours1,158 (748–1,398 across 10 winters)
USDA hardiness zone3b
Last spring frosttypically April 29 – May 19
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 59263’s chill hours and zone:

How many chill hours does 59263 get?
59263 averages 1158 chill hours per winter, ranging from 748 to 1398 across the last 10 years.
What hardiness zone is 59263?
59263 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