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Chill hours in 51601

The short answer

51601 averages 1,378 chill hours per winter (1,1141,667 across 10 years) in USDA zone 5b.
51601 climate
Average chill hours1,378 (1,114–1,667 across 10 winters)
USDA hardiness zone5b
Last spring frosttypically March 29 – April 23
First fall frosttypically October 17 – November 21

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 51601’s chill hours and zone:

Good fit (152)

Chill and zone requirements are comfortably met in 51601.

Good fit varieties for this location
VarietyFruit
Acey MacApple
AkaneApple
AnnaApple
Arkansas BlackApple
BraeburnApple
CameoApple
CandyCrispApple
CortlandApple
Cox's Orange PippinApple
CrimsonCrispApple
Dorsett GoldenApple
EarligoldApple
EmpireApple
FortuneApple
FujiApple
GalaApple
Ginger GoldApple
GoldRushApple
Golden DeliciousApple
Golden SupremeApple
Granny SmithApple
GravensteinApple
HoneycrispApple
IdaredApple
JonagoldApple
JonamacApple
JonathanApple
LibertyApple
LodiApple
McIntoshApple
Show 122 more good fit varieties
How many chill hours does 51601 get?
51601 averages 1378 chill hours per winter, ranging from 1114 to 1667 across the last 10 years.
What hardiness zone is 51601?
51601 is in USDA hardiness zone 5b.

Growing fruit trees in 51601? Get a care calendar anchored to this exact climate, with email reminders.

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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