These Climate Zones do NOT correspond to the USDA Hardiness Zones. ZONE 17: Marine effects in Southern Oregon, Northern and Central California. Plant Identification: Examining Leaves; Scientific Plant Names; Glossary of technical terms; USDA Hardiness Zone Maps of the United States; Sunset's Climate Zones; References; Oregon Master Gardener Training: Identifying Woody Plants For a detailed Western Oregon zone map, click the link under image at left. Centered over the plains of Wyoming and Montana, this zone sees January temperatures from 0 to 12°F (–18 to –11°C),with extremes between –30 and –50°F (–34 to –46°C). Established plant material in t… The climate in this zone features mild,wet, almost frostless winters and cool summers with frequent fog or wind. Home » Climate Zones A plant's performance is governed by the total climate: length of growing season, timing and amount of rainfall, winter lows, summer highs, wind, and humidity. However, it’s one of the smallest zones. The Coast Range buffers the impact of Pacific storms, but Zone 6 is still a maritime climate,with a long growing season (from 155 days at Cottage Grove to 280 days in Portland neighborhoods) and 40 to 55 inches of annual precipitation most places. These zone descriptions will guide you in choosing the right plants for your garden. One of the West’s most narrow, linear climates, Zone 4 runs from high in the coastal mountains of Northern California to southeastern Alaska, losing elevation as it moves north. ZONE 3A: Mild areas of mountain and intermountain climates. Click on Oregon State University, or write Oregon State University, Corvallis, OR 97331-4501, USA. One of the West’s most narrow, linear climates, Zone 4 runs from high in the coastal mountains of Northern California to southeastern Alaska, losing elevation as it moves north. The growing season is 50 to 100 days. Tucked between the Coast Range and the Cascades, Zone 6 includes the Willamette Valley in Oregon, the Columbia River Valley between Vancouver and Longview, and the Cowlitz drainage from Longview to Toledo. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. In addition to temperature, the “Sunset” zones also account for latitude, elevation, ocean influence, continental air influence and terrain such as mountains and hills. On most days and in most places, the fog tends to come in high and fast, creating a cooling and humidifying blanket between the sun and the earth, reducing the intensity of the light and sunshine. As it extends north, the zone first touches salt water in northern Puget Sound and is almost entirely surrounded by salt water in southeastern Alaska. Mild ocean air moderates Zone 5, allowing it to produce some of the finest rhododendrons, Japanese maples, and rock garden plants anywhere. Upper Mississippi Valley, Upper Michigan, Southern Ontario and Quebec Growing season: late May to mid-Sept. ZONE 1B: Coldest Eastern Rockies and plains climate of Colorado, Wyoming, Montana, and Southern Alberta. Calculations of sunrise and sunset in Coos Bay – Oregon – USA for December 2021. Marked by a short growing season and relatively mild summer temperatures, Zone 1A includes the coldest regions west of the Rockies, excluding Alaska, and a few patches of cold country east of the Great Divide. Calculations of sunrise and sunset in Portland – Oregon – USA for August 2021. On most days and in most places, the fog tends to come in high and fast, creating a cooling and humidifying blanket between the sun and the earth, reducing the intensity of the light and sunshine. Use of this site constitutes acceptance of our. Interestingly enough, these sunny days are responsible for the occurrence of radiational cooling, resulting in frost any time of the year. Big freezes do considerable damage when they come very early or very late. ZONE 17: Marine effects in Southern Oregon, Northern and Central California The climate in this zone features mild,wet, almost frostless winters and cool summers with frequent fog or wind. The USDA zone map divides the country into 26 or so different zones, while the Sunset system has over 40. Warm summers and chilly winters make the Willamette Valley one of the West’s best-known growing areas for berries, hazelnuts, roses, flowering fruit trees, and broadleafed evergreens. You’ll find this zone stretched over Colorado’s northeastern plains, a bit of it along the Western Slope and Front Range of the Rockies, as well as mild parts of river drainages like those of the Snake, Okanogan, and the Columbia. 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