These zone descriptions will guide you in choosing the right plants for your garden. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. The lowest temperatures on record range from 30 to 20°F (–1 to –7°C).Of further interest in this heat-starved climate are the highs of summer, normally in the 60 to 75°F (16 to 24°C) range. Most of it lies in the warmest parts of eastern Washington’s Columbia Basin, with bits in Lewiston, Idaho, and parts of the Southwest. Along with hardy evergreen conifers, tough deciduous trees and shrubs form the garden’s backbone. In a 20-year period, the lowest winter temperatures in Zone 17 ranged from 36 to 23°F (2 to –5°C). Sunset climate zones: Western Oregon. In a 20-year period, the lowest winter temperatures in Zone 17 ranged from 36 to 23°F (2 to –5°C). Calculations of sunrise and sunset in Coos Bay – Oregon – USA for December 2021. The Willamette Valley’s hills and small mountain ranges create many microclimates. Generally, the farther an area is from the equator, the longer and colder are its winters. Historically, there are less than 10 frost-free days (32°F or greater) in the city of Bend. Average January minimum temperatures range from 33 to 41°F (1 to 5°C),with annual lows averaging a few degrees colder, and 10-year extremes ranging from 20 to 6°F (–7 to –14°C). Hot summers and mild but pronounced winters give Zone 7 sharply defined seasons without severe winter cold or enervating humidity. It also shows up in western Montana and Nevada and in mountain areas of the Southwest. 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. 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. Hardy to USDA Zone 6 Native to southeastern Europe and Asia Minor. ZONE 3A: Mild areas of mountain and intermountain climates. Corp., Menlo Park, Calif.), the western U.S. is divided into a large number of Climate Zones. 20°F to 25°F. Zone 7 encompasses several thousand square miles west of the Sierra Nevada and Cascade ranges, and in the mountains that separate the Southern California coast from interior deserts. This approach is used to avoid the difficulties encountered when the USDA Hardiness Zones are applied to parts of the western U.S.  For example, with the USDA Hardiness Zones, the Olympic rain forest in Washington State is in the same USDA Hardiness Zone, Zone 8, as part of Arizona's Sonora Desert. 10°F to 15°F. The growing season is 50 to 100 days. ZONE 1A: Coldest mountain and intermountain areas of the contiguous states. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. ZONE 5: Marine influence along the Northwest coast, Puget Sound, and South Vancouver Island. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. To further assure success, grow vegetables from seedlings you start yourself or buy from a nursery or garden center. 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. 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. The lowest temperatures on record range from 30 to 20°F (–1 to –7°C). It gets considerable influence from the Pacific Ocean, but also from the continental air mass, higher elevation, or both. These areas are too high and cold in winter to be included in milder Zones 15 and 16. Zone 7 encompasses several thousand square miles west of the Sierra Nevada and Cascade ranges, and in the mountains that separate the Southern California coast from interior deserts. Many people are attracted to Central Oregon because of the large number of sunny days we experience here. Zone 8b. Winter lows average in the 0 to 11°F (–18 to –12°C) range; extremes range from –25 to –50°F (–32 to –46°C). The Sunset Climate Zones, which are more comprehensive than the zones created by the USDA, might be more useful in the western part of the country. Get fresh recipes, wine pairings, weekend getaway ideas, regional gardening tips, home design inspiration, and more. The USDA zone map divides the country into 26 or so different zones, while the Sunset system has over 40. The continental influence is felt two to four times each winter when chilly interior air flows west through the Columbia Gorge and produces wind and freezing rain clear to the Portland airport. 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. Winter temperatures here usually hover between 10 and 20°F (–12 to –7°C) at night, with drops between –20 and –30°F (–29 and –34°C) every few years.When temperatures drop below that, orchardists can lose even their trees. Calculations of sunrise and sunset in Portland – Oregon – USA for May 2021. Average January minimum temperatures range from 33 to 41°F (1 to 5°C),with annual lows averaging a few degrees colder, and 10-year extremes ranging from 20 to 6°F (–7 to –14°C). Sunset climate zones: Western Washington. A number of cultivars, including: 'Compacta' - supposedly a form that is more compact than the species type, listed as growing 4-8 ft (1.2-2.4 m) high with an equal spread. Ten-year extremes average 0 to 10°F (–18 to –12°C). If your garden gets reliable snow cover (which insulates plants), you’ll be able to grow perennials listed for some of the milder zones. This climate zone shares similarities with its neighbors—the cold-winter Zones 1, 2, and 3, and the subtropical low desert, Zone 13. Though the growing season averages between 200 and 250 days, heat accumulation is low, and warm-season vegetables develop slowly. Steady breezes and lower temperatures, especially along the coast,make windbreaks and warm microclimates critical for heat-loving plants. Sunset ZONE 5: Marine influence along the Northwest coast, Puget Sound, and South Vancouver Island. Deciduous fruit trees do well also; the region is noted for its pears, apples, peaches, and cherries. The mild days and chilly nights during the growing season extend the bloom of summer perennials like columbines and Shasta daisies. The climate is humid from spring through early fall; summer rains are usually dependable. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. 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. In addition to temperature, the “Sunset” zones also account for latitude, elevation, ocean influence, continental air influence and terrain such as mountains and hills. But beware: though you can grow winter vegetables in the southern part of Zone 4, it doesn’t get enough winter sunlight in Alaska to sustain them. Click on Oregon State University, or write Oregon State University, Corvallis, OR 97331-4501, USA. 15°F to 20°F. Since trees are typically dieocious (i.e., male and female flowers on separate plants), a given clone may be either male or female. 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. 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. 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. The climate in this zone features mild,wet, almost frostless winters and cool summers with frequent fog or wind. Sunset's Climate Zones are based on winter minimum temperatures, but also include other factors such as summer high temperatures, length of growing season, humidity, and rainfall. Sunset ZONE 17: Marine effects in Southern Oregon, Northern and Central California. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. The growing season is 100 to 150 days. Sunset ZONE 6: The Willamette and Columbia River Valleys. In years when snow comes late or leaves early, protect plants with a 5- or 6-inch layer of organic mulch. 25°F to 30°F. Calculations of sunrise and sunset in Medford Watershed – Oregon – USA for January 2021. These dates occur during July and August. Zone 9b. Kirkland (and most of the Puget Sound lowlands) are solidly in Sunset zone 5. The higher elevations are especially susceptible to frost and can experience frost during the summer months. If you’re growing vegetables, for example, add at least 50 percent to the days-to-harvest figure listed on the seed package, or start your garden from transplants. ZONE 18. About Sunset 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. Sunset ZONE 2A: Cold mountain and intermountain areas. albus , a relatively low growing shrub (to 1 m) found in eastern North America, and Symphoricarpos albus var. Summer highs run between 65 and 70°F (18 and 21°C) along the coast, and between 70 and 75°F (21 and 24°C) inland and around Puget Sound. Zone 3b offers one of the longest growing seasons of the intermountain climates. Most reputable nurseries will only sell plants that will grow in the surrounding area. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. Gardeners here count on 180 to 210 frost-free days with plenty of heat. Zone 9a. Zone 3b is much like Zone 3a, but with slightly milder winter averages of 19 to 29°F (–7 to –2°C) and extremes that usually bottom out between –2 and –15°F (–19 to –26°C). Winter temperatures are milder than in neighboring Zone 2a, minimums averaging from 12 to 22°F (–11 to –6°C),with extremes in the –10 to –20°F (–23 to –29°C) range. Big freezes do considerable damage when they come very early or very late. ZONE 7: California’s Gray Pine Belt, Oregon’s Rogue River Valley, and Southern California mountains. ZONE 4: Cold-winter areas of the north coast and mild-winter areas of Alaska and British Columbia. ), Sunset ZONE 1A: Coldest mountain and intermountain areas of the contiguous states. Hot summer days are followed by mild nights; near-freezing winter nights are followed by daytime temperatures near 60°F (16°C). 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. Choosing plants that are native to the region can make it easier to start and maintain an organic garden in a more unforgiving climate. Summer temperatures in Zone 6 average 10 to 15°F (5 to 8°C) higher than those along the coast, while winters are cold enough to trigger good fruit set. East of the Sierra and Cascade ranges, you can hardly find a better gardening climate than Zone 3a.Winter minimum temperatures average from 15 to 25°F (–9 to –4°C), with extremes between –8 and –18°F (–22 and –28°C). Sunset ZONE 7: Oregon’s Rogue River Valley, and Southern California mountains. 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. Copyright © 2021 Sunset Publishing Corporation. Hardy to USDA Zone 3 Widely distributed across North America Sometimes the species is separated into two varieties: Symphoricarpos albus var. At weather-recording stations in Zone 7, typical winter lows range from 35 to 26°F (2 to –3°C),with record lows averaging from 18 to -0° F (–8 to –18°C). Of further interest in this heat-starved climate are the highs of summer, normally in the 60 to 75°F (16 to 24°C) range. Zone 8a. Gardeners can plant warm-season vegetables as long as they are short-season varieties. Warmer summers and cooler winters distinguish Zone 6 from coastal Zone 5. 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. Established plant material in t… These Climate Zones do NOT correspond to the USDA Hardiness Zones. The continental influence is felt two to four times each winter when chilly interior air flows west through the Columbia Gorge and produces wind and freezing rain clear to the Portland airport. ZONE 6: The Willamette and Columbia River Valleys. Withstands neglect (Sunset)." These hills have perfect air drainage, so winters get less frost than the valley floor. Using climate zone information. Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. Patrick Breen, Elevation. This is a zone that offers a good balance of long, warm summers and chilly winters, making it an excellent climate zone for commercial fruit growing. ZONE 3B: Mildest areas of intermountain climates. Sunset’s Climate Zones consider temperature as well as other important factors: Latitude. Winter lows average in the 0 to 11°F (–18 to –12°C) range; extremes range from –25 to –50°F (–32 to –46°C). These zone descriptions will guide you in choosing the right plants for your garden. Sunset climate zones: Eastern Washington, Eastern Oregon, and Idaho These zone descriptions will guide you in choosing the right plants for your garden Sunset – December 5, 2009 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. The average highest temperature in Zone 17 is 97°F (36°C). Woody Broadleaf Search; Conifer Search; Additional Information. The mild days and chilly nights during the growing season extend the bloom of summer perennials. ZONE 17. This is the coldest zone in which sweet cherries and many apples grow. The growing season is 50 to 100 days. Not to be confused with the somewhat similar M. gale (Sweet-gale), which is a smaller (to 2 m) deciduous shrub, the lower side of its leaves are dotted with yellow waxy glands and … Summer temperatures are a bit higher than in Zone 3a—mostly in the high 80s and low- to mid-90s. Calculations of sunrise and sunset in Oregon Coast – Oregon – USA for January 2021. Summer temperatures in Zone 6 average 10 to 15°F (5 to 8°C) higher than those along the coast, while winters are cold enough to trigger good fruit set. Zone 3b offers one of the longest growing seasons of the intermountain climates. Below are the Sunset Climate Zones used to cover Oregon, Washington, and Idaho. Summer temperatures are a bit higher than in Zone 3a—mostly in the high 80s and low- to mid-90s. 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. 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. Hardy to USDA Zone 7 Native to the Pacific Coast and coastal valleys from Washington to southern California. Sunset zones are based on a combination of extremes and averages of minimum, maximum, and mean temperature, rainfall, humidity, and the length of the growing season. Because of the influence of latitude, this climate lies mostly at low elevations in Oregons Rogue Valley, middle elevations around Californias Central Valley, and at middle to higher elevations farther south. No zone grows better perennials and bulbs; people who like woodland plants and rock plants love Zone 4. At weather-recording stations in Zone 7, typical winter lows range from 35 to 26°F (2 to –3°C),with record lows averaging from 18 to -0° F (–8 to –18°C). South- and west-facing slopes are warm enough to produce world-class Pinot Noir grapes, while northand east-facing slopes are perfect for shade tolerant plants like rhododendrons, fatsias, and camellias. Such mild temperatures favor leaf vegetables, which are slow to bolt, and flowering ornamentals like begonias. Zone 6 includes the Willamette Valley in Oregon, the Columbia River Valley between Vancouver and Longview, and the Cowlitz drainage from Longview to Toledo. Calculations of sunrise and sunset in Eugene – Oregon – USA for January 2021. Gray pines define the heart of Zone 7 around the Central Valley, but more adaptable incense cedars replace them farther nort… The climate in this zone features mild, wet, almost frostless winters and cool summers with frequent fog or wind. Another snowy winter climate, Zone 2A covers several regions that are considered mild compared with surrounding climates. 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 43. SUNSET is a registered trademark This is fabulous country for annual vegetables and flowers and a long list of perennials, trees, shrubs, and vines. 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. In the contiguous states, Zone 4 has more cold than neighboring Zone 5, more snow, and a shorter growing season. Because of the influence of latitude, this climate lies mostly at low elevations in Oregon’s Rogue Valley, middle elevations around California’s Central Valley, and at middle to higher elevations farther south. Some heat-loving plants (citrus, hibiscus, gardenia) don’t get enough heat to fruit or flower reliably. 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. You’ll also find this warm-summer, snowy-winter climate along Colorado’s Western Slope and mild parts of the Front Range  and in mild parts of the Columbia and Snake River basins. Interestingly enough, these sunny days are responsible for the occurrence of radiational cooling, resulting in frost any time of the year. 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. 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. Closer to the poles, the number of daylight hours increases in summer and decreases in winter. Sunset ZONE 2B: Warmer-summer intermountain climate. It gets considerable influence from the Pacific Ocean, but also from the continental air mass, higher elevation, or both. Mild ocean air moderates Zone 5, allowing it to produce some of the finest rhododendrons, Japanese maples, and rock garden plants anywhere. Arctic air dominates in winter, with lows typically from -20 degrees to -30 degrees F/-29 degrees to -34 degrees C. ZONE 44. CPN (Certified Plant Nerd)Patrick.Breen@oregonstate.edu, College of Agricultural Sciences - Department of Horticulture, USDA Hardiness Zone Maps of the United States, Oregon Master Gardener Training: Identifying Woody Plants. 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 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). Warmer summers and cooler winters distinguish Zone 6 from coastal Zone 5. However, it’s one of the smallest zones. Sunset climate zones are based more on local microclimates and quirks of our western landscape. Summer highs run between 65 and 70°F (18 and 21°C) along the coast, and between 70 and 75°F (21 and 24°C) inland and around Puget Sound. ZONE 17: Marine effects in Southern Oregon, Northern and Central California. A lake for everyone, confessions of a pool crasher, and the BBQ king of California. Hardy to USDA Zone 1 The most widely distributed tree in North America. Because of the influence of latitude, this climate lies mostly at low elevations in Oregon’s Rogue Valley, middle elevations around California’s Central Valley, and at middle to higher elevations farther south. Sunset ZONE 4: Cold-winter areas of the north coast and mild-winter areas of Alaska and British Columbia. In the mildest parts of Zone 7—in the extreme southern Salinas Valley, for example—you can get away with growing borderline plants such as citrus, oleanders, and almonds if you choose a spot with good air drainage to take the edge off winter chill. In their habitat, quaking aspen forms clones connected by a common parent root system. Mild ocean air moderates Zone 5, allowing it to produce some of the finest rhododendrons, Japanese maples, and rock garden plants anywhere.Heaths and heathers thrive in sandy soils along the coast and inland, and katsura trees reach their prime, rarely scorching as they may inland. It’s also fine country for native woodland ferns, trilliums, piggyback plants, vine maples, and dogwoods. Gray pines define the heart of Zone 7 around the Central Valley, but more adaptable incense cedars replace them farther north and south. Average winter lows in Zone 4 range from 34°F (1°C) down to 28°F (–2°C),with extreme lows averaging 8 to 0°F (–13 to –18°C). The Sunset zones, popularized and researched by Sunset Magazine, are derived from climate zones developed by the University of California Cooperative Extension. All Rights Reserved. The average highest temperature in Zone 17 is only 97°F (36°C). The growing season is 150 to 200 days long, but because Zone 4 summers are temperate (highs average from the low 60s to the 70s), plants take more time to develop. Calculations of sunrise and sunset in Portland – Oregon – USA for August 2021. That’s why you’ll find orchards in this zone in almost every state in the West. 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