Growing season: Mar. Start with our guides for tasks, including tips for maintaining a healthy and beautiful garden in the California seasons. ZONE 14. The Arbor Day Foundation has also issued a Hardiness Zone Map. Growing season: early May to late Sept.–shorter than in Zone 2, but offset by milder winters (lows from 13 degrees to -24 degrees F/-11 degrees to -31 degrees C). Los Angeles County, California Hardiness Zone Map. Because the state is so large, it is actually further broken down into Northern and Southern planting zones. ZONE 24. ZONE 21. The California Energy Commission develops and maintains maps and geospatial information on California’s energy infrastructure and related activities. Growing season: mid-Mar. The zones are only a guide and a good starting point, but you still need to determine for yourself what will and won't work in your garden. Temperature is not the only factor in figuring out whether a plant will survive in your garden. Close Save changes. For Example; Sacramento is Climate Zone 12, San Francisco is Climate Zone 3 and Lake Tahoe is Climate Zone 16. Southern California is well known for its sunny and warm weather.. Growing season: Mar. Rain comes in winter. ZONE 8. to Dec. Oregon’s Rogue River Valley, California’s High Foothills Hilltops and Valley Floors of Ocean-influenced Inland Southern California to early Dec., with the same tradeoff of oceanic and interior influence as in Zone 20. Any residential customer taking electric service from Pacific Gas & Electric (PG&E), Southern California Edison (SCE), or San Diego Gas & Electric (SDG&E) can compare usage and bills against the median and average within the customer's climate zone. California planting zones range from zones 5a to11a. ... September 5, 2020 GardenZeus Northern California GardenZeus Southern California New and Now Organic Gardening: Vegetables The Mighty Garden Archive No Comments. ZONE 7. Select your state and county (or zip code in California) to find your climate zone and learn more about picking the best product for your area. Coldest Winters in the West and Western Prairie States Inland Northern and Central California with Some Ocean Influence Under the California Irrigation Management Information System (CIMIS), San Diego County is divided into six climate zones: Coastal, Coastal Inland, Upland Central, Transition, Mountain and Desert. | sbnum=7576 | pagenum=8228, Generalized Plant Climate Map of California, 24 climate zones defined in the Sunset Western Garden Book, 20 zones defined by the United States Department of Agriculture, Growing Grapes (table, wine, raisins) in Your Backyard, © 2020 Regents of the University of California, Division of Agriculture and Natural Resources. Climate is affected by factors such as latitude, topography, and proximity to water masses - primarily the Pacific Ocean, and southern California's mountain ranges. Typical winter lows range from 28 degrees to 21 degrees F/-2 degrees to -6 degrees C. Maritime air influences the zone much of the time, giving it cooler, moister summers than Zone 14. ZONE 22: Cold-winter portions of Southern California’s coastal climate Areas falling in Zone 22 have a coastal climate (they are influenced by the ocean approximately 85 percent of the time). In Zones 20 and 21, the same relative pattern prevails as in Zones 18 and 19. Various scenarios for increased greenhouse gas Northern and Central California’s Chilly-winter Coast-influenced Areas Growing season: May to early Oct. Summers are hot and dry; typical winter lows run from 23 degrees to 9 degrees F/-5 degrees to -13 degrees C. The summer-winter contrast suits plants that need dry, hot summers and moist, only moderately cold winters. A lake for everyone, confessions of a pool crasher, and the BBQ king of California. Hilltops and Valley Floors of Interior Southern California To standardize Title 24 calculations and to provide a basis for presenting the criteria, the California Energy Commission has established 16 climate zones which are used with both the low-rise residential and the non-residential Title 24 energy standards. Northern and Central California Coast Range Thermal Belts Growing season: mid-Feb. through Nov. to mid-Nov., with rain coming in the remaining months. | Updated May 3, 2019. The combination of constant and stable ocean water temperature of the Pacific and the geographic latitude play a crucial role in the Southern California’s climate formation. Growing season: late Feb. to early Dec. Coolness and fog are hallmarks; summer highs seldom top 75 degrees F/24 degrees C, while winter lows run from 36 degrees to 23 degrees F/2 degrees to -5 degrees C. Heat-loving plants disappoint or dwindle here. Climate Zones 1-5 and 8-16 Wall assemblies must not exceed a maximum U-factor† of 0.051 Climate Zones 6 & 7 Wall assemblies must not exceed a maximum U-factor† of 0.065 Mineral Wool Performance Attic Options Any attic insulation not listed under “Prescriptive” must use Performance options (e.g., unvented attics, or attics There’s some summer rainfall. ZONE 20. to early Dec. Winter lows seldom fall below 28 degrees F/-2 degrees C (records are around 21 degrees F/-6 degrees C), though colder air sinks to this zone from Zone 23. ZONE 16. Even within a city, a street, or a spot protected by a warm wall in your own garden, there may be microclimates that affect how plants grow. Still in need of more information? High Desert Areas of Arizona, New Mexico, West Texas, Oklahoma Panhandle, and Southwest Kansas Frost can come any night of the year. Our garden guide for southern California can help you navigate the climate and help with creating a garden that bursts with color and blooms year-round. Advice to Grow By - Ask Us HERE! The mountain peaks are classified in the same climate zone as the Rocky Mountains while the coastal areas are generally frost-free. Eastern Los Angeles and Orange County climate map from Sunset. ZONE 20: Cool winters in Southern California. Rainfall pattern is the same as in Zone 8. The Transverse Ranges and the Peninsular Ranges are key players in the region's climate. Thermal Belts of Southern California’s Coastal Region This is fine territory for plants needing winter chill and dry, hot summers. ZONE 22. ZONE 12. Thermal Belts of California’s Central Valley Get fresh recipes, wine pairings, weekend getaway ideas, regional gardening tips, home design inspiration, and more. All Rights Reserved. Energy use depends partly on climate conditions which differ throughout the state. Growing season: all year, but periodic freezes have dramatic effects (record lows are 33 degrees to 20 degrees F/1 degree to -7 degrees C). Growing season: almost year-round (all but first half of Jan.). Andy's Awesome Adventures Recommended for you During the winter rainy season, lows range from 36 degrees to 23 degrees F/2 degrees to -5 degrees C―warmer than in Zone 20, since the colder air drains to the valleys. ZONE 10. Growing season: early Mar. Compared to Zone 13, this region has harder frosts; record low is 6 degrees F/-14 degrees C. Rains come in summer and winter. ZONE 22: Cold-winter portions of Southern California Areas falling in Zone 22 have a coastal climate (they are influenced by the ocean approximately 85 percent of the time).When temperatures drop in winter, these cold-air basins or hilltops above the air-drained slopes have lower winter temperatures than those in neighboring Zone 23. Each climate zone includes regions of California with similar temperature patterns. The Sunset zone maps, considered the standard gardening references in the West, are more precise than the USDA's, since they factor in not only winter minimum temperatures, but also summer highs, lengths of growing seasons, humidity, and rainfall patterns. Reliable ocean influence keeps summers mild (except when hot Santa Ana winds come from inland), frosts negligible; 23 degrees F/-5 degrees C is the record low. Growing season: early Mar. Growing season: late Mar. Colder-winter Parts of Southern California’s Coastal Region Zone 1 is the coldest; zone 11 is the warmest. of Sunset Publishing Corporation. Growing season: early May through Sept. Winters are cold (lows run from -3 degrees to -34 degrees F/-19 degrees to -37 degrees C), but less so than in Zone 1. If you've had trouble finding varieties that look great and don't require a ton of care, try these perennials. Climate Zone information, including a map and list of Climate Zones by city, is available on the California Energy Commission's website. Arizona’s Intermediate Desert * Harness the Power of Sunny Southern California. Growing season: early June through Aug., but with some variation―the longest seasons are usually found near this zone’s large bodies of water. What are the ENERGY STAR climate zones (612KB)?. Zone 9 is located in the higher elevations around Zone 8, but its summers are just as hot; its winter lows are slightly higher (temperatures range from 28 degrees to 18 degrees F/-2 degrees to -8 degrees C). Your Climate Zone. The difference is that Zones 20 and 21 get weather influenced by both maritime air and interior air. Division of Agriculture and Natural Resources In northern and interior areas, lower elevations fall into Zone 2, higher areas into Zone 1. ZONE 13. Marine-dominated Southern California Coast Cool and moist maritime influence alternates with hot, dry interior air. ZONE 19. Winters are snowy and intensely cold, due to latitude, elevation, and/or influence of continental air mass. When you order plants from catalogs or read general garden books, you need to know your USDA zone in order to be able to interpret references correctly. Growing season: late Feb. through Dec. Note: The links below will take you from the CEC web site. Therefore The Climate Zone Description Manual describes each climate zone boundaries and list most California cities with its associated climate zone number. Summers are hot; winter lows range from 29 degrees to 13 degrees F/-2 degrees to -11 degrees C. Rain comes in the cooler months, covering just the early part of the growing season. Site Information December 5, 2000 through Nov. As in Zone 18, rainy winters and hot, dry summers are the norm―but here, winter lows dip only to 27 degrees to 22 degrees F/-3 degrees to -6 degrees C, allowing some tender evergreen plants to grow outdoors with protection. to late Nov., with scorching midsummer heat. Climate data and weather averages in Southern California. SUNSET is a registered trademark Climate here is largely oceanic. Of 24 climate zones defined in the Sunset Western Garden Book and the 20 zones defined by the United States Department of Agriculture (USDA), California has 20 and 16, respectively. The coldest high-elevation areas in California with a short growing season and winter temperatures that may drop to well below zero Fahrenheit. It is important to select windows, doors, or skylights that are suited to the type of climate you live in. Because it is such a large state, California climate zones cover a wide range of temperatures. Climate Change and the Future of Southern California Peak Oil and Climate Change: Scenarios and Implications12 Second, looking forward, the fact that humans have caused the warming in recent years means that continued, collective human impacts will lead to even greater changes. West’s Mildest High-elevation and Interior Regions People visiting the South often note that our gardens and lawns are bigger on average than those found in the rest of the county. Low or Subtropical Desert California Vegetables. This climate system provides you factors to help you understand which plants will thrive in your landscaping under its native conditions. Periodic intrusions of marine air temper summer heat and winter cold (lows run from 26 degrees to 16 degrees F/-3 degrees to -9 degrees C). Los Angeles County Border: Zone 7a 0°F to 5°F: Zone 7b 5°F to 10°F: Zone 8a 10°F to 15°F: Zone 8b 15°F to 20°F: Zone 9a 20°F to 25°F: Zone 9b 25°F to 20°F: Zone 10a 30°F to 25°F: Use of this site constitutes acceptance of our, – Eastern Los Angeles and Orange County contain a wide range of climate zones. Climate here is oceanic (but warmer than oceanic Zone 17), with cool summers, mild winters. Growing season: April to early Nov. ZONE 23. Most gardening books, catalogs, and seed packets refer to plant hardiness zones, climate zones, or growing zones. These zone descriptions will guide you in choosing the right plants for your garden. The reason for this is the geographic location of the state, which stretches roughly between 32° and 42° north latitude. To find the planting zone for California that you live in, simply find the area on the map above that you live in and match the color of that area to the map legend to the right. Nondiscrimination Statement, Accessibility Browse California Plants. California's climate varies widely from hot desert to polar, depending on latitude, elevation, and proximity to the coast. Most frosts are light (record lows run from 19 degrees to 13 degrees F/-17 degrees to -11 degrees C); scant rain comes in summer and winter. ZONE 11. Soil types, rainfall, day length, wind, humidity, and heat also play their roles. It rarely gets too cold or too hot, at least along the coast. Temperature hardiness climate zones are based on normally expected high and low temperatures and serve as guides to help you know which plants will grow where you live. When temperatures drop in winter, these cold-air basins or hilltops above the air-drained slopes have lower winter temperatures than those in neighboring Zone 23. The even-numbered zone is the climate made up of cold-air basins and hilltops, and the odd-numbered one comprises thermal belts. California falls entirely within the subtropical climate zone, which is the transitional zone between the hot tropical climate zone to the south and the temperate climate zone to the north, which is known for its four completely different seasons. ZONE 9. Growing season: mid-Feb. through Nov., interrupted by nearly 3 months of incandescent, growth-stopping summer heat. Annual and perennial plants grown as vegetables, for California gardens. The USDA plant hardiness map divides North America into 11 hardiness zones. Subtropical plants thrive. - Duration: 54:08. The Arbor Day Foundation has also issued a Hardiness Zone Map . Vegas Baby!-Everything You've Ever Wanted to Know About Las Vegas But Were Afraid to Ask! Los Angeles County, California is in USDA Hardiness Zones 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b and 11a. Southern California's dry and often hot and sunny weather calls for low-maintenance outdoor plants that can withstand tough conditions. Summers are warm; rain comes in winter. When you order plants from catalogs or read general garden books, you need to know your USDA zone in order to be able to interpret references correctly. Copyright © 2020 Sunset Publishing Corporation. Gardeners in the western United States sometimes are confused when confronted with the 11 Hardiness Zones created by the USDA, because we are used to a 24-zone climate system created by Sunset Magazine. A northern half of a California planting zone can be anywhere from 5a to 10b. Around the coastal areas, the weather does not vary as dramatically as it does inland. Oceanside Northern and Central California and Southernmost Oregon ZONE 18. Use these helpful resources: ZONE 1. The southern region has zones 5a to 11a. Growing season: early Mar. Find the ENERGY STAR climate zone for your location. Growing season: early April to late Oct. Summers are sizzling, with 110 days above 90 degrees F/32 degrees C. Balancing this is a 3 1/2-month winter, with 85 nights below freezing and lows from 11 degrees to 0 degrees F/-12 degrees to -18 degrees C. Scant rainfall comes in winter. Thermal Belts around Southern California’s Interior Valleys Climate Zone tool, maps, and information supporting the California Energy Code California has a diversity of climates not seen in other states, and the statewide provisions adopted into the California Energy Code accounts for these variations using a set of sixteen climate zones. ZONE 2. Zone 1 is the coldest; zone 11 is the warmest. Medium to High Desert of California and Southern Nevada Beginning at the intersection of the north line of Climate Zone 6 and the east line of Climate Zone 5 on the west line of Ventura County; thence northerly along the east line of Zone 5 to the south line of T5N, San Bernardino Base Line California Climate Zone 14 Keywords: California Climate Zone 14, Pacific Gas and Electric Company, PG&E, Basic Climate Conditions, Design Day Data, Climatic Design Priorities, Title 24 Requirements, Climate, Bioclimatic Chart, Temperature, Degree Day, Relative Humidity, Extra-Terrestrial Radiation, Wind Speed, Created Date: 11/9/2015 12:13:55 PM Get PDF Reader Medium to High Desert of California and Southern Nevada Growing season: early April to late Oct. Summers are sizzling, with 110 days above 90 degrees F/32 degrees C. Balancing this is a 3 1/2-month winter, with 85 nights below freezing and lows from 11 degrees to 0 degrees F/-12 degrees to -18 degrees C. Scant rainfall comes in winter. There’s a reason for this: our climate smiles upon gardening. Division of Agriculture and Natural Resources, University of California, © 2020 Regents of the University of California to late Nov.–but fairly mild winters (lows of 28 degrees to 23 degrees F/-2 degrees to -5 degrees C) allow gardening through much of the year. Thermal Belts around Southern California’s Ocean-influenced Interior Valleys Do you plan to incorporate photovoltaics (PV) and/or solar water heating in your residential new construction project? This is a valley floor with no maritime influence. Annual Weather Averages in George Air Force Base / Victorvi. Lake Tahoe is the most densely populated area in this zone. Zone 9a: 20°F to 25°F: California City: Zone 8a: 10°F to 15°F: California Hot Springs: Zone … Second-coldest Western Climate CA Zone 1: Cold Mountain Areas. This public information is accessible through the cloud-based ArcGIS Hub, ArcGIS Online, PDF Maps, and interactive web maps links below. through late Nov. Summers are hot and dry; rain comes in winter, when lows reach 28 degrees to 10 degrees F/-2 degrees to -12 degrees C. Plants from the Mediterranean and Near Eastern regions thrive here. We enjoy an extended growing season that makes gardening a year-round activity. Growing season: mid-Mar. Now, the South is big enough to be divided into six USDA Planting Zones. Chilly (even snow-dusted) weather rules from late Nov. through Feb., with lows from 31 degrees to 24 degrees F/-1 degree to -4 degrees C. Rain comes in summer as well as in the cooler seasons. ZONE 15. Mediterranean-climate plants are at home here. George Air Force Base / Victorvi is 35 miles from Southern California, so the actual climate in Southern California can vary a bit. ZONE 3. Rain comes from fall through winter. ZONE 11. It offers very pleasant temperatures throughout the year. ZONE 17. Cold-air Basins of California’s Central Valley Growing season: late Feb. to late Nov. With cold air draining to lower elevations, winter lows typically run from 32 degrees to 19 degrees F/0 degrees to -7 degrees C. Like Zone 15, this region is dominated by maritime air, but its winters are milder on average.
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