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Chill hours in 04742

The short answer

04742 averages 1,096 chill hours per winter (8951,401 across 10 years) in USDA zone 4a.
04742 climate
Average chill hours1,096 (895–1,401 across 10 winters)
USDA hardiness zone4a
Last spring frosttypically April 30 – May 16
First fall frosttypically October 4 – October 30

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 04742’s chill hours and zone:

How many chill hours does 04742 get?
04742 averages 1096 chill hours per winter, ranging from 895 to 1401 across the last 10 years.
What hardiness zone is 04742?
04742 is in USDA hardiness zone 4a.

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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