There are a total of 16 Climate Zones in California per the Title 24 energy code. Depending on the location of your project, specifically the zip code, your project may fall under one of these 16 climate zones. Depending on the climate zone that your project falls under, the Title 24 energy code requirements may vary significantly. Hence the CA climate zone map is a very important starting point in your Title 24 compliance check journey and understanding the energy code requirements that are applicable to your project.
A simple tool that helps you find the California climate zone for your project
Simply enter the zip code of your project address in the below calculator and it will spit out which California climate zone your project falls under.
Climate Zone Map of California
You could also refer to the below map which shows the different climate zones in California.
To add some context to the above California Climate zone map, below are a list of major cities or neighborhoods falling under each Climate zone.
Major neighborhoods in California climate zone 1:
Eureka, Klamath, Crescent City, Fortuna and more.
Major neighborhoods in California climate zone 2
Fairfax, Santa Rosa, Sonoma, Cloverdale, Novato, San Anselmo, Ukiah, San Rafael and more.
Major neighborhoods in California climate zone 3
East Palo Alto, Vallejo, San Leandro, El Cerrito, Pacific Grove, Seaside, Carmel Valley, Monterey AP, Daly City, San Pablo, San Mateo, Woodside, Newark, Oakland AP, Carmel-by-the-Sea, San Francisco, Sausalito, Santa Cruz, Salinas, South San Francisco, Half Moon Bay, Marina, Belmont, Redwood City, Richmond, Fremont, Union City, Berkeley, Mill Valley, San Francisco AP, Hayward, Millbrae, Menlo Park, San Carlos and more.
Major neighborhoods in California climate zone 4
Milpitas, Los Gatos, Cupertino, Los Altos, Gilroy, Saratoga, Palo Alto, Sunnyvale, San Jose, Stanford, Mountain View and more.
Major neighborhoods in California climate zone 5
Lompoc, Guadalupe, part of Santa Barbara, Arroyo Grande, Oceano, Morro Bay, San Luis Obispo, Pismo Beach, Cambria and more.
Major neighborhoods in California climate zone 6
Laguna Beach, Torrance, Hermosa Beach, Oxnard, Camarillo, Laguna Niguel, Marina del Rey, part of Santa Barbara, El Segundo, Ventura, Rancho Palos Verdes, Newport Beach, Costa Mesa, Manhattan Beach, San Pedro, part of Los Angeles, Dana Point, Long Beach, Santa Monica, Del Aire, San Clemente, Lomita and more.
Major neighborhoods in California climate zone 7
Encinitas, Bonita, San Diego, National City, Vista, Solano Beach, Chula Vista, Oceanside, La Mesa, Cardiff-by-the-Sea, Coronado, Carlsbad, Lemon Grove and more.
Major neighborhoods in California climate zone 8
Mission Viejo, Lennox, part of Los Angeles, Lynwood, Santa Ana, part of Long Beach, Gardena, Orange, Inglewood, Irvine, Placentia, La Habra, Ladera Heights, Norwalk, Stanton, Lakewood, La Palma, Garden Grove, Huntington Park, Downey, Culver city, El Toro, Artesia, Carson, Cypress, Fullerton, Anaheim, Cerritos, Yorba Linda, Walnut Park, Compton, Buena Park, Bellflower, Commerce and more.
Major neighborhoods in California climate zone 9
La Puente, Studio City, Beverly Hills, La Mirada, La Habra Heights, Reseda, Covina, Pasadena, West Hollywood, Van Nuys, Westlake Village, Calabasas, Burbank, Sepulveda, Whittier, Pacoima, Walnut, Canoga Park, part of Los Angeles, Encino, West Covina, Claremont, Azusa, Chatsworth, Monrovia, San Marino, East Pasadena, Santa Fe Springs, Santa Clarita, Granada Hills, San Dimas, Sherman Oaks, Arcadia, Monterey Park, Montebello, Woodland Hills, Thousand Oaks, Simi Valley, Alhambra, North Hollywood, Tarzana, Glendora, UCLA, Altadena, Glendale, Baldwin Park, Rosemead and more.
Major neighborhoods in California climate zone 10
Moreno Valley, Yucaipa, Cucamonga, Colton, Corona, Los Serranos, Loma Linda, Rialto, Beaumont, Riverside, El Cajon, Temecula, Highland, Escondido, Upland, San Bernardino, Fallbrook, San Jacinto, San Marcos, Fontana, Lakeside, Perris, Spring Valley, Poway Valley, Santee, Chino, Chino Hills, Rancho San Diego, Lake Elsinore and more.
Major neighborhoods in California climate zone 11
Yuba City, Platina, Palermo, Auburn, Rocklin, Redding, Roseville, Oroville, Paradise, Colfax, Colusa and more.
Major neighborhoods in California climate zone 12
Lathrop, Mount Diablo, Galt, Placerville, Pleasant Hill, Brentwood, Livermore, Pleasanton, Vacaville, Riverbank, Ripon, Rio Linda, Elk Grove, Sacramento, Woodland, Stockton, Lafayette, Dublin, Fair Oaks, Carmichael, San Ramon, Ceres, Modesto, Walnut Grove, Alamo, Concord, Davis, West Sacramento, Antioch, Walnut Creek, Manteca and more.
Major neighborhoods in California climate zone 13
Fresno, Farmersville, Bakersfield, Tulare, Visalia, Selma, Madera, Maricopa, Clovis, Delano, Porterville and more.
Major neighborhoods in California climate zone 14
Twentynine Palms, Yucca Valley, Lancaster, Campo, Hesperia, Death Valley, Fairmont, Apple Valley, Palmdale and more.
Major neighborhoods in California climate zone 15
Palm Desert, Palm Springs, Cathedral City, Desert Hot Springs, Rancho Mirage, La Quinta, El Centro, Coachella, Banning and more.
Major neighborhoods in California climate zone 16
Alturas, Alta Sierra, Yreka, Doyle, Yosemite Park Hq, Big Bear Lake, Chester, Elk Valley, Cedarville, Burney, Lake Arrowhead, Squaw Valley, South Lake Tahoe, Tahoe Valley, Tahoe City, Mill Creek, Montague, Mount Shasta, Sierra City, Quincy, Twin Lakes, Forest Glen, Idyllwild, Tehachapi and more.
How do the Title 24 energy code requirements change per the California climate zone? See below code sections:
- Here is a list of prescriptive requirements for single family residential projects per climate zone for Title 24 calculations.
- Here is a list of prescriptive requirements for low rise multi-family residential projects (multi-family projects < 3 stories) per climate zone Title 24 calculations.
- Here is a list of prescriptive requirements for non-residential and high rise residential projects per climate zone Title 24 calculations.
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