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Chill hours in 49783

The short answer

49783 averages 1,292 chill hours per winter (9691,644 across 10 years) in USDA zone 4b.
49783 climate
Average chill hours1,292 (969–1,644 across 10 winters)
USDA hardiness zone4b
Last spring frosttypically April 27 – May 11
First fall frosttypically October 17 – November 3

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 49783’s chill hours and zone:

How many chill hours does 49783 get?
49783 averages 1292 chill hours per winter, ranging from 969 to 1644 across the last 10 years.
What hardiness zone is 49783?
49783 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