• Witch Hazel. On average, the "Rose City" has 144 sunny days and an annual average temperature of 71 degrees Fahrenheit (22 degrees Celsius), making it an ideal place to foster a rose garden. Oregon averages 13 inches of snow per year. From Open Energy Information. She enjoys spending as much time as she can gardening and being outdoors and is passionate about helping clients transform their outdoor spaces. County Climate Zone. The USDA and the Sunset Gardening plant hardiness zones can inform your decision of which plants to include in your garden. Sunset 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. Current local time in USA – Oregon – Portland. This searchable resource includes helpful lists of plants for sun and shade. Just make sure to consider it an annual. Oregon zones are expansive and include zones 4b through 9b. • Black-Eyed Susan Exceptions occur at higher elevations in the Blue Mountains and the Wallowa Mountains to the northeast, which get 50 to 80 inches (1,300 to 2,000 mm) a year. Are your dreams bigger than your yard? What zone is Portland in? About 1001 mm | 39.4 inch of precipitation falls annually. [3], In addition to seasonal cycles in solar radiation (more in summer, less in winter), major factors affecting temperatures in Oregon include the moderating influence of the Pacific Ocean combined with variations in surface elevation, especially the Cascade Range. In this post we go into detail about location-based landscaping in Portland. The winters are rainier than the summers in Portland. Monthly temperature, precipitation and hours of sunshine. Light Up Your Nightscape with Smart Outdoor Lighting. West of the Cascade Range, winters are chilly with frequent rain and snow. She has an A.A.S in Landscape Design and Landscape Construction from Portland Community College. If you fall in love with a particular plant, even if it isn’t zoned for our area, we say why not give it a home in your garden? A climate chart for your city, indicating the monthly high temperatures and rainfall. And let’s not forget, even the best gardeners will lose a few plants over the course of their gardening career, even ones that supposedly should do just fine in our climate—so you may as well choose to plant the ones that you love! Portland (/ ˈ p ɔːr t l ə n d /, PORT-lənd) is the largest and most populous city in the U.S. state of Oregon and the seat of Multnomah County.It is a major port in the Willamette Valley region of the Pacific Northwest, at the confluence of the Willamette and Columbia rivers in Northwestern Oregon. • Solomon’s Seal Compared to Seattle and Vancouver, Portland is both warmer and drier all year round. • Forsythia Climate in Oregon. What zone is Portland in? Great Plant Picks is a terrific site that is a part of the Elisabeth C. Miller Botanical Garden. Glaciers remain year-round on some Cascade peaks higher than 7,000 feet (2,100 m) above sea level. [6] The lowest occurred on February 9, 1933, in Ukiah, and again on February 10, 1933, in Seneca, also both east of the Cascades, when the temperature dropped to −54 °F (−48 °C). Sunset Hardiness Zones are different. [9], CS1 maint: multiple names: authors list (, https://en.wikipedia.org/w/index.php?title=Climate_of_Oregon&oldid=993215636, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 December 2020, at 11:56. Residential Maintenance This enormous, unusual coniferous plant first arrived with the 1905 Lewis & Clark Exposition, a Portland event at which dozens of small Monkey Puzzle trees were handed out to residents. It lies in the Pacific Northwest part of America, within the state of Oregon, at the confluence of the Columbia and Willamette rivers. The winters are rainier than the summers in Portland. • Daisies Tracts vary in size but generally align with population density. Based on data from ski resorts and a few official weather stations, average annual snowfall in the Cascades can range from 300 to 550 inches (760 to 1,400 cm). Let’s take a look at both of these systems. • Bee Balm The high desert region of the state is much drier, with less rain, more snow, colder winters, and hotter summers. [3], In most mountain areas in Oregon, the ground above 4,500 feet (1,400 m) is covered with snow from December through April. If your gar… The tables below display average monthly climate and weather indicators in Portland Maine. Oftentimes, when we go to purchase plants, the catalog or plant tag will indicate hardiness zone followed by a number. Zone 9b: 25°F to 30°F: Oregon City: Zone 8b: 15°F to 20°F: Otis: Zone 8b: 15°F to 20°F: … [3] The highest was recorded on July 29, 1898, in Hermiston, Oregon, and again on August 10, 1898, in Redmond, Oregon, both east of the Cascades, when the temperature reached 122 °F (50 °C). Oregon gets some kind of precipitation, on average, 134 days per year. 33.445 Historic Resource Protection Overlay Zone; 33.450 Light Rail Transit Station Zone; 33.453 Interim Forest Review; 33.455 Main Street Node Overlay Zone; 33.460 Main Street Corridor Overlay Zone; 33.465 Pleasant Valley Natural Resources Overlay Zone; 33.470 Portland International Airport Noise Impact Zone; 33.471 Prime Industrial Overlay Zone We discuss climate zones and hardiness zones, two measuring sticks that green thumbs use to categorize which plants will thrive where. This prevailing pattern breaks down occasionally when dense cold air flows down the Columbia Gorge into the Willamette Valley and lowers temperatures more than usual from Portland to Eugene. The Portland lies on 10m above sea level The climate here is mild, and generally warm and temperate. • Astilbes Average temperatures and precipitation amounts for more than 145 cities in Oregon. Get Portland's weather and area codes, time zone and DST. Describe the climate and name the climate zone at alaska; portland, oregon; and key west, florida. Climate zones from Figure 301.1 or Table 301.1 shallbe used indetermining theapplicablerequirements from Chapters 4 and 5. Graphical Climatology of Portland, Oregon: Daily Temperatures and Rainfall, by Year (1875 – Present) The following is a graphical climatology of Portland, Oregon temperatures and precipitation, from 1875 into 2020. Many Portland gardeners let experience guide them—if something does not work, they either strike that species from their shopping list, or they treat it as an annual in following seasons. For the love of color and texture – hardscapes that wow! • Azaleas According to the Köppen climate classification, most of Western Oregon has a warm-summer mediterranean climate (or Csb type), which features warm summers, and wet winters with frequent overcast and cloudy skies. • Yarrow. Posted on April 5, 2020 | by admin | Leave a Comment on Planning For the Next Disaster. Stability studies of the pharmaceutical drug should be done according to the climatic conditions of the country. Portland landscaping experts know that our locale is a gardener’s paradise. Portland (and the entire Willamette Valley) is in Zone 6 according to the Sunset rating system. Rebecca Smith is a Design/Sales Associate at Landscape East & West. Portland weather averages and climate Portland, Oregon. [1], Precipitation in the state varies widely: some western coastal slopes approach 200 inches (5,100 mm) annually, while the driest places, such as the Alvord Desert (in the rain shadow of Steens Mountain) in eastern Oregon, get as little as 5 inches (130 mm). The following places are categorized as class 4C climate zones: Benton County, Oregon: Energy Resources Portland falls into USDA hardiness zone 8b (with average low temperatures from 15 to 20 degrees Fahrenheit) or 9a (with average lows from 20 to 25 degrees Fahrenheit) for parts of inner Portland. Statewide, the dry months are July and August, when moisture arrives during afternoon thunderstorms, mainly in the mountains, and less often from storms that reach the north coast and adjacent counties. [2], The remaining two-thirds of the state is relatively dry, classified as semi-arid, with large areas receiving no more than 12 inches (300 mm) a year. Place: Multnomah County, Oregon: ASHRAE Standard: ASHRAE 169-2006: Climate Zone Number: Climate Zone Number 4: Climate Zone Subtype: Climate Zone … The exclamation “Location, location, location!” is typically applied to the world of real estate, but it applies equally well to gardening. • Coreopsis Eastern Oregon falls into the cold semi-arid climate (or BSk type), which features drier weather. Portland is in Zone 6 according to the Sunset hardiness system. What is a hardiness zone or rating, and what zone is Central Oregon considered? According to the ICH guidelines for stability studies, the climate of the world is divided into five different zones. Climate and average weather for Portland (Oregon), United States of America displayed in graphs. For more advice on which plants shine in Portland’s climate, give us a call! • Daylilies Design Build Knowing the plant’s needs will help you select a spot where it is likely to thrive. However, even in Portland, it can be difficult to figure out which plants will succeed, and which ones will not make it through our long rainy season. At lower elevations along the coast, orographic precipitation is less intense but still produces 60 to 80 inches (1,500 to 2,000 mm) a year. What happened to my lawn? In the Portland shade we find: East of the valley, the storm air rises again as it meets the Cascade Range, cooling once more and forming condensate at elevations often as low as 3,000 feet (910 m). The heaviest precipitation in the state occurs at 2,000 to 4,000 feet (610 to 1,220 m) above sea level in these coastal mountains. After all, you may luck out and Portland will have a particularly mild winter that your new plant will make it through just fine. There are dozens of perennials and shrubs that do well here. Gardeners who are accustomed to conditions on the valley floor will find it difficult to grow the same species at the top of Council Crest, where the elevation is around 1000 feet. The new map is based on detailed GIS mapping work, and is searchable by zip code, so higher elevation areas in East Portland and in the West Hills map out with different zones than, say, inner Southeast Portland, where I live – which now maps out at Zone 9A (with average winter lows of 20-25F). In general, temperatures on Earth drop by about 4 °F (2 °C) per each 1,000 feet (300 m) increase in elevation. Survivalist kits can be used to reduce your risk of catastrophic loss. The average annual temperature in Portland is 11.9 °C | 53.3 °F. If you’re aware that a certain plant is highly unlikely to survive the winter, you can also choose to keep it in a pot and bring it inside for the winter. • Blueberries Accessibility statement The City of Portland ensures meaningful access to City programs, services, and activities to comply with Civil Rights Title VI and ADA Title II laws and reasonably provides: translation, interpretation, modifications, accommodations, alternative formats, auxiliary aids and services. • Ferns (link is external)The map is based on the average annual mini… • Lavender It also boasts plenty of extra information on participating nurseries, useful websites, organizations, and more! Further inland, between the Coast Range and the Cascades, snowfall generally averages from 5 to 10 inches (13 to 25 cm) a year. Portland is famous for its Monkey-Puzzle Trees. The climate summary for this page is based on data from the Global Summary of the Day and is based on weather observations between May 1936 through to December 2012 at Portland International, Portland, Oregon . Find the best time to go to Portland (Oregon). The climate here is mild, and generally warm and temperate. Portland averages 3 inches of snow per year. Portland: Geography and Climate: The West. Explore Portland's sunrise and sunset, moonrise and moonset. Hardiness zones can be confusing because there are two distinct classification systems that are used to determine a plant’s hardiness (i.e., its ability to survive cold winters). We’ve made progress, but there’s still more to do. Multnomah County, Oregon ASHRAE 169-2006 Climate Zone. On average, there are 144 sunny days … Temperature by: Fahrenheit / Centigrade Produced by Sunset Gardening Magazine, Sunset Hardiness Zone Maps tend to be significantly more detailed than the USDA plant hardiness zones because they include more factors, including elevation, humidity, latitude, ocean influence, microclimates, and more. The mild days and chilly nights during the growing season extend the bloom of summer perennials like columbines and Shasta daisies. [6] In the Blue Mountains of eastern Oregon, snowfall totals can also be large, between 150 and 300 inches (380 and 760 cm). [3] The state's largest annual snowfall on record, 903 inches (2,290 cm), occurred at Crater Lake in the Cascades in 1950. Landscaping experts the world over appreciate the importance of selecting the correct plants for local climates. 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. This site contains recommendations on over 900 exceptional plants that have been selected for gardeners living west of the Cascades, from Eugene up to British Columbia. It is interesting to note that the 2012 updated version of the USDA … Oregon Climate. Portland falls into USDA hardiness zone 8b (with average low temperatures from 15 to 20 degrees Fahrenheit) or 9a (with average lows from 20 to 25 degrees Fahrenheit) for parts of inner Portland. Portland, Oregon gets 43 inches of rain, on average, per year. Looking for more? Throughout the year, high elevations across the state tend to be cooler than low elevations. This location is classified as Csb by Köppen and Geiger. The official website of the City of Portland, Oregon. [2][3], The Pacific Ocean, the moisture-laden air above it, and the storms moving from it over the Oregon coast, are major factors in the state's precipitation patterns. Temperatures can get very cold, but only occasionally, as the result of Arctic cold waves. [2], Across Oregon, the wet season runs from November through March, when the jet stream is strongest in the Northern Hemisphere. Oregon has 834 census tracts, more than 300 of which were eligible by meeting the definition of a "low income community" in … Having an understanding of your local microhabitat is very helpful when deciding which species to plant. • Hostas Included are summary overview charts followed by 146 year-to-year graphs depicting daily temperatures, temperature anomalies, and precipitation. On the other hand, most winter precipitation in the Coast Range falls as rain, though heavy snow sometimes occurs. What to grow? Portland (and the entire Willamette Valley) is in Zone 6 according to the Sunset rating system. According to the Köppen climate classification, most of Western Oregon has a warm-summer mediterranean climate (or Csb type), which features warm summers, and wet winters with frequent overcast and cloudy skies. Coniferous and deciduous trees of all sizes and shapes grow here, including Alders, Birches, Beeches, Pines, Douglas Firs, and Cedars. The US average is 205 sunny days. Precipitation is rain, snow, sleet, or hail that falls to the ground. [6] The temperature in the Willamette Valley is mild compared to the desert regions of the state, with high temperatures at or above 90 °F (32 °C) occurring only five to fifteen times per year, and low temperatures below 30 °F (−1 °C) similarly infrequent. On average, there are 175 sunny days per year in Oregon. This location is classified as Csb by Köppen and Geiger. The US average is 28 inches of snow per year. Snow depths, which vary with elevation and time of year, average an estimated 50 to 100 inches (130 to 250 cm) in the Cascades and 25 to 65 inches (64 to 165 cm) in the Blue Mountains at the end of January; by the end of April, they diminish to 40 to 120 inches (100 to 300 cm) in the Cascades and 5 to 45 inches (13 to 114 cm) in the Blues. • Purple Cone Flowers The US average is 38 inches of rain per year. Brown Patches – Common causes and what to do about them. This number is based upon the hardiness zones derived from a map put out by the (link is external)by the(link is external)U.S. Department of Agriculture. • Rhododendrons We also touch on which plants thrive in Portland. HOA Maintenance, Serving the greater portland metropolitan area: Landscape East & West, LCB #8697 - CCB #181577, WA #LANDSEW877JT © 2021 Landscape East & West | Privacy Policy. This tendency makes it challenging for certain plants to survive. Why winter is the best time to plan your summer yard. Climate information for Eugene Oregon including average temperature, rain and snowfall totals Located 110 miles from the Pacific Ocean, Portland lies between two mountain ranges, the Cascade Range to the east and the lower Coast Range to the west, in the Willamette River valley, one of the world's most fertile river valleys. Climate in Portland, Oregon. The southern coastal region is the warmest and winter extreme lows are 30 degrees F., while the coolest regions in the state may dip to -20 degrees F. To find which Oregon zone you are in, you can enlarge the map above. o Exe Stn Estacada Oregon Climate Zone Summary Zone 2 -- The Willamette Valley The Willamette Valley is the most diverse agricultural area in the state of Oregon, and also the home of the majority of the population. In addition, the Cascades, running north–south from border to border, generally retain relatively warm Pacific air masses on the western side of the state and relatively cool continental air masses on the eastern side. The Blue-Wallowa mountains have climates that vary with location. It is interesting to note that the 2012 updated version of the USDA hardiness zone map reflects a trend of overall warmer temperatures since 1975. Eastern Oregon falls into the cold semi-arid climate (or BSk type), which features drier weather. The updated system that was released in 2012 utilizes GIS mapping data, and provides detailed information about average minimum temperatures for each state. The average annual temperature in Portland is 11.9 °C | 53.3 °F. [8] The hottest area of the state is the southwest; Jackson County is the warmest place in the state during summer. The climate of Portland, OR Portland experiences a temperate oceanic type of climate (Köppen climate classification Csb) with warm, dry summers and mildly cold, wet winters. • Dogwood In the full sun you are likely to find: CLIMATE ZONES SECTION 301 CLIMATE ZONES 301.1 General. The plateau area of central and southeastern Oregon has climatic characteristics similar to the north-central plateau except for somewhat less precipitation and lower temperatures at higher elevations. [3], Annual snowfall along the coastal plain averages 1 to 3 inches (2.5 to 7.6 cm) a year, including years with none. Our Portland landscaping experts can recommend the perfect planting for your yard. [2], In the Willamette Valley east of the Coast Range, storms "blowing" from the Pacific retain enough moisture to drop from 35 to 45 inches (890 to 1,140 mm) annually in the most heavily populated part of the state. The USDA plant hardiness zone schema was rebuilt in 2012 with the help of researchers from Oregon State University. USDA Plant Hardiness Zones. • Hydrangeas Rather than guess willy-nilly which species will be able to make it here, many local gardeners refer to each plant’s hardiness zone rating. The Rose City is well known for its greenery, and many plant species thrive here. • Geraniums Climate Zone 4C is defined as Mixed – Marine with IP Units 3600 < HDD65ºF ≤ 5400 and SI Units 2000 < HDD18ºC ≤ 3000 . USDA Plant Hardiness Maps may be used to determine if a plant is expected to survive winter in your given hardiness zone. The climate is different in all the countries in the world. East of the Cascades, in non-mountain settings, the annual totals range from 15 to 75 inches (38 to 191 cm), depending on location; they are smallest in the north-central region and the Snake River basin in the southeast and largest in the northeastern valleys and in the high plateaus of the south-central part of the state. If this is the case, you will be able to enjoy it for a few more seasons. Zone 6b: Oregon City: Zone 8b: Paisley: Zone 6b: Parkdale: Zone 7a: Pendleton: Zone 7a: … Climate data and weather averages in Portland. Each zone consists of an entire census tract, as established for the decennial U.S. Census. Sunset Hardiness Zones. To plant or not to plant is often the question for gardeners. The Pacific Northwest is known for warm, dry summers and cool, wet winters—and Portland is no exception. Average monthly Rainfall, Sunshine, Temperatures. Zone 6. A climate graph showing rainfall, temperatures and normals. Gardeners in this zone enjoy a long growing season (from mid-March to mid-November), but they also experience the possibility of cold snaps and/or long winters. Nothing beats gardening experience for intuiting which plants will survive winter, and which will not. We were the first US city to adopt a carbon reduction strategy in 1993, and our cutting-edge Climate Action Plan put us on a path to reducing emissions by 80% in 2050. The US average is 28 inches of snow per year. ZONE 1A: Coldest mountain and intermountain areas of the contiguous states 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. Precipitation is less in the months between winter and summer: April through June in the spring and September and October in the fall. • Hellebores, and more. Planning For the Next Disaster. 10 tips to maximize your space. As humid ocean air flows east from the ocean and encounters the Coast Range, it rises steeply, cools, and loses moisture through condensation, which produces heavy rain. Portland is the land of microclimates, so the hardiness guides are recommendations at best. Portland is tackling climate change head on. The ability of a plant to perform depends on many factors, including the gardening care given, soil types, available nutrients, proper irrigation, and more. Shrubs such as Mahonia and red flowering current also do very well in a Portland landscape. Averages are for Portland International Airport, which is 7 miles from Portland. Shrubs that thrive in Portland include: The term “hardiness” refers to the ability of a plant to withstand an average minimum temperature. • Butterfly Bushes Haskins Dirn0 61R °Oregon City N. Willamette. Annual Weather Averages Near Portland. - 3292695 [7], Oregon has a wide range of temperatures, though the extremes are rare. For example, a shady corner will not warm up as quickly as a sunny spot, and you may find areas that offer more shelter, which can therefore support more temperature-sensitive species. Through the American Cities Climate Challenge, we’ll continue to lead the way. • Coral Bells Seasonal storms can make gardening unpredictable, but in general the summers here are dry and hot, while the winters are wet and cold. Although Portland temperatures are mild for most months of the year, we do see freezing temperatures that may last several weeks. [5], Snowfall in Oregon is greatest in the Cascade Range. Portland. No matter where you are located, and what the dangers are, you can make your home safer and more secure by having a survivalist kit. Your own yard will almost certainly contain microclimates as well. • Salvias [2] Since volcanic peaks in the range are quite high—more than 11,000 feet (3,400 m) in the case of Mount Hood[4]—most of the remaining Pacific moisture falls here in the form of rain or snow. She has an A.A.S in Landscape Design and Landscape Construction from Portland Community College get 's. Our locale is a terrific site that is a hardiness zone classified as Csb by Köppen and Geiger average! Progress, but only occasionally, as the result of Arctic cold waves different zones made progress but! 5, 2020 | by admin | Leave a Comment on Planning for the love color. Zone schema was rebuilt in 2012 with the help of researchers from Oregon state University and... °Oregon City N. Willamette of a plant to withstand an average minimum temperatures for each state site... 5 ], snowfall in Oregon and normals a spot where it is likely to thrive experts that! 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