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Chill hours in 04761

The short answer

04761 averages 1,165 chill hours per winter (9661,538 across 10 years) in USDA zone 4b.
04761 climate
Average chill hours1,165 (966–1,538 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically May 1 – May 14
First fall frosttypically October 18 – November 5

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 04761’s chill hours and zone:

How many chill hours does 04761 get?
04761 averages 1165 chill hours per winter, ranging from 966 to 1538 across the last 10 years.
What hardiness zone is 04761?
04761 is in USDA hardiness zone 4b.

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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