Chill Hours Calculator
Fruit trees need a certain number of chilly hours (below 45°F) each winter to fruit well. Check whether a fruit fits your winter.
Our city list is small on purpose — only places with a published average are included.
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Your county Extension publishes average chill hours for your area.
Your verdict appears here.
Not on the city list? Your Extension office has your county’s average — enter that number above for the most accurate answer.
Chill hours vary year to year; your local Extension office has the best local numbers. Pollination needs vary by cultivar — check the nursery tag.