How many chill hours does 59920 get?

59920 averages 1157 chill hours per winter, ranging from 678 to 1564 across the last 10 years.

What hardiness zone is 59920?

59920 is in USDA hardiness zone 5b.

Location almanac

The short answer

59920 averages 1,157 chill hours per winter (678–1,564 across 10 years) in USDA zone 5b.

59920 climate
Average chill hours	1,157 (678–1,564 across 10 winters)
USDA hardiness zone	5b
Last spring frost	typically May 22 – June 20
First fall frost	typically September 14 – October 18

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 59920’s chill hours and zone:

Chill and zone requirements are comfortably met in 59920.

Show 122 more good fit varieties

How many chill hours does 59920 get?: 59920 averages 1157 chill hours per winter, ranging from 678 to 1564 across the last 10 years.
What hardiness zone is 59920?: 59920 is in USDA hardiness zone 5b.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026