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Chill hours in 70346

The short answer

70346 averages 404 chill hours per winter (193526 across 10 years) in USDA zone 9a.
70346 climate
Average chill hours404 (193–526 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 19 – March 6

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 70346’s chill hours and zone:

Marginal (14)

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
VarietyFruit
MutsuApple
TomcotApricot
FantasiaNectarine
SuncrestPeach
BartlettPear
BoscPear
ChojuroPear
ShinkoPear
Elephant HeartPlum
BrooksSweet Cherry
Craig's CrimsonSweet Cherry
LapinsSweet Cherry
Royal RainierSweet Cherry
English MorelloTart Cherry
How many chill hours does 70346 get?
70346 averages 404 chill hours per winter, ranging from 193 to 526 across the last 10 years.
What hardiness zone is 70346?
70346 is in USDA hardiness zone 9a.

Growing fruit trees in 70346? 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