GrowZone

USDA hardiness zone by ZIP

USDA hardiness zone for ZIP 92101 (San Diego)

ZIP 92101 is USDA hardiness zone 10b; use the San Diego frost station's Jan 30 last frost and Dec 15 first frost to turn that zone into a planting calendar.

Source: san-diego-lindbergh frost station, USDA zone 10b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

ZIP 92101 is in USDA hardiness zone 10b. For vegetables, the zone is useful context, but frost dates decide the actual planting window.

Use the ZIP calendar to turn the zone into crop-specific dates.

Planting calendars in zone 10b

San Diego, CA · Zone 10b Tomatoes Feb 6 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Peppers Feb 13 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Basil Feb 9 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Carrots Jan 9 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Lettuce Jan 16 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Cucumbers Feb 9 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Zucchini Feb 9 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Cilantro Jan 16 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Bush beans Feb 6 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Spinach Jan 2 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Radishes Jan 2 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Kale Jan 16 Open answer · last frost Jan 30 San Diego, CA · Zone 10b Watermelon Feb 13 Open answer · last frost Jan 30