Sunset ZONE 14: Orleans, Weitchpec, Hoopa, Willow Creek.  Northern California's inland areas with some ocean influence

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The marine air that spills inland via the Klamath and Trinity canyons moderates has a strong influence on this climate zone, delineating it's boundaries. Summer temperatures climb regularly into the triple digits in this area, producing some of the earliest tomatoes and peaches at the coastal farmers markets.  The valley floors in this area are subject to hard winter frosts.  There can be a 50 degree temperature swing between daytime highs and nighttime lows, a phenomenon that builds complex flavors an character in tree fruit and wine grapes.  Crops that require lots of heat (i.e. peaches, tomatoes, peppers, eggplants, figs,) or lots or cold (i.e. fruit trees that require winter chill) do well here.  Fruit trees and berries that do not do well with extreme heat, such as apples, filberts, blueberries, benefit from being planted where afternoon shade provides relief from the most intense heat.   A long growing season means year round gardening.   Clear, dry spells in the winter can lead to a pattern of hard frosts that can be hard on winter gardens.  Over a 20-year period, this area had lows ranging from 26 to 16º F (–3 to –9ºC). Weather records show all-time lows from 20 down to 11ºF (–7 to –12º C).