How many chill hours does 03588 get?

03588 averages 1200 chill hours per winter, ranging from 967 to 1694 across the last 10 years.

What hardiness zone is 03588?

03588 is in USDA hardiness zone 4b.

Location almanac

The short answer

03588 averages 1,200 chill hours per winter (967–1,694 across 10 years) in USDA zone 4b.

03588 climate
Average chill hours	1,200 (967–1,694 across 10 winters)
USDA hardiness zone	4b
Last spring frost	typically April 28 – May 17
First fall frost	typically September 30 – October 23

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 03588’s chill hours and zone:

Chill and zone requirements are comfortably met in 03588.

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How many chill hours does 03588 get?: 03588 averages 1200 chill hours per winter, ranging from 967 to 1694 across the last 10 years.
What hardiness zone is 03588?: 03588 is in USDA hardiness zone 4b.

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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