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. ZONE 16. 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. 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). This public information is accessible through the cloud-based ArcGIS Hub, ArcGIS Online, PDF Maps, and interactive web maps links below. Start with our guides for tasks, including tips for maintaining a healthy and beautiful garden in the California seasons. CA Zone 1: Cold Mountain Areas. Arizona’s Intermediate Desert Get PDF Reader 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. 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 The coldest high-elevation areas in California with a short growing season and winter temperatures that may drop to well below zero Fahrenheit. Oceanside Northern and Central California and Southernmost Oregon Coldest Winters in the West and Western Prairie States ZONE 20. Second-coldest Western Climate 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: Eastern Los Angeles and Orange County climate map from Sunset. 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’s Chilly-winter Coast-influenced Areas ZONE 13. Climate here is oceanic (but warmer than oceanic Zone 17), with cool summers, mild winters. 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). | Updated May 3, 2019. Copyright © 2020 Sunset Publishing Corporation. ZONE 20: Cool winters in Southern California. Frost can come any night of the year. Growing season: Mar. The USDA plant hardiness map divides North America into 11 hardiness zones. The mountain peaks are classified in the same climate zone as the Rocky Mountains while the coastal areas are generally frost-free. People visiting the South often note that our gardens and lawns are bigger on average than those found in the rest of the county. Growing season: April to early Nov. Growing season: late Mar. West’s Mildest High-elevation and Interior Regions Growing season: early Mar. These zone descriptions will guide you in choosing the right plants for your garden. Note: The links below will take you from the CEC web site. 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. * Harness the Power of Sunny Southern California. Subtropical plants thrive. 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. If you've had trouble finding varieties that look great and don't require a ton of care, try these perennials. Winters are snowy and intensely cold, due to latitude, elevation, and/or influence of continental air mass. It rarely gets too cold or too hot, at least along the coast. ZONE 2. Temperature is not the only factor in figuring out whether a plant will survive in your garden. ZONE 11. 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. 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. | 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. Los Angeles County, California Hardiness Zone Map. There’s some summer rainfall. High Desert Areas of Arizona, New Mexico, West Texas, Oklahoma Panhandle, and Southwest Kansas 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. Andy's Awesome Adventures Recommended for you 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. Find the ENERGY STAR climate zone for your location. ZONE 12. Hilltops and Valley Floors of Interior Southern California ZONE 15. The reason for this is the geographic location of the state, which stretches roughly between 32° and 42° north latitude. ZONE 11. The Transverse Ranges and the Peninsular Ranges are key players in the region's climate. 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. Hilltops and Valley Floors of Ocean-influenced Inland Southern California Mediterranean-climate plants are at home here. Zone 1 is the coldest; zone 11 is the warmest. 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). - Duration: 54:08. Your Climate Zone. to mid-Nov., with rain coming in the remaining months. Thermal Belts of California’s Central Valley 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. ... September 5, 2020 GardenZeus Northern California GardenZeus Southern California New and Now Organic Gardening: Vegetables The Mighty Garden Archive No Comments. Around the coastal areas, the weather does not vary as dramatically as it does inland. Energy use depends partly on climate conditions which differ throughout the state. ZONE 1. Advice to Grow By - Ask Us HERE! Marine-dominated Southern California Coast 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. 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. Thermal Belts around Southern California’s Interior Valleys Colder-winter Parts of Southern California’s Coastal Region to early Dec., with the same tradeoff of oceanic and interior influence as in Zone 20. Northern and Central California Coast Range Thermal Belts Climate Zone information, including a map and list of Climate Zones by city, is available on the California Energy Commission's website. Zone 9a: 20°F to 25°F: California City: Zone 8a: 10°F to 15°F: California Hot Springs: Zone … California's climate varies widely from hot desert to polar, depending on latitude, elevation, and proximity to the coast. ZONE 10. The even-numbered zone is the climate made up of cold-air basins and hilltops, and the odd-numbered one comprises thermal belts. 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. Browse California Plants. Thermal Belts around Southern California’s Ocean-influenced Interior Valleys ZONE 17. ZONE 21. Most gardening books, catalogs, and seed packets refer to plant hardiness zones, climate zones, or growing zones. This is a valley floor with no maritime influence. Growing season: late Feb. through Dec. 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. ZONE 14. A lake for everyone, confessions of a pool crasher, and the BBQ king of California. ZONE 8. Growing season: early Mar. What are the ENERGY STAR climate zones (612KB)?. Growing season: mid-Feb. through Nov., interrupted by nearly 3 months of incandescent, growth-stopping summer heat. 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. Use of this site constitutes acceptance of our, – 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. 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. 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 George Air Force Base / Victorvi is 35 miles from Southern California, so the actual climate in Southern California can vary a bit. Eastern Los Angeles and Orange County contain a wide range of climate zones. Cold-air Basins of California’s Central Valley This climate system provides you factors to help you understand which plants will thrive in your landscaping under its native conditions. ZONE 24. Use these helpful resources: In northern and interior areas, lower elevations fall into Zone 2, higher areas into Zone 1. The Arbor Day Foundation has also issued a Hardiness Zone Map . Close Save changes. Rainfall pattern is the same as in Zone 8. 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. Division of Agriculture and Natural Resources 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. Cool and moist maritime influence alternates with hot, dry interior air. Inland Northern and Central California with Some Ocean Influence Climate here is largely oceanic. Annual Weather Averages in George Air Force Base / Victorvi. Growing season: Mar. Los Angeles County, California is in USDA Hardiness Zones 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b and 11a. The Arbor Day Foundation has also issued a Hardiness Zone Map. ZONE 9. 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. to Dec. Zone 1 is the coldest; zone 11 is the warmest. In Zones 20 and 21, the same relative pattern prevails as in Zones 18 and 19. to late Nov., with scorching midsummer heat. 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. of Sunset Publishing Corporation. 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. The southern region has zones 5a to 11a. Now, the South is big enough to be divided into six USDA Planting Zones. Site Information Soil types, rainfall, day length, wind, humidity, and heat also play their roles. It offers very pleasant temperatures throughout the year. ZONE 22. Southern California's dry and often hot and sunny weather calls for low-maintenance outdoor plants that can withstand tough conditions. Annual and perennial plants grown as vegetables, for California gardens. Growing season: mid-Mar. ZONE 19. 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. 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). Vegas Baby!-Everything You've Ever Wanted to Know About Las Vegas But Were Afraid to Ask! 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. 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. 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). Growing season: early June through Aug., but with some variation―the longest seasons are usually found near this zone’s large bodies of water. Because it is such a large state, California climate zones cover a wide range of temperatures. Growing season: mid-Feb. through Nov. 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. Various scenarios for increased greenhouse gas 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. Summers are warm; rain comes in winter. 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 Southern California is well known for its sunny and warm weather.. Growing season: mid-Mar.
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