GrowZone

USDA hardiness zone by ZIP

USDA hardiness zone for ZIP 94102 (San Francisco)

ZIP 94102 is USDA hardiness zone 10a; use the San Francisco frost station's Jan 25 last frost and Dec 15 first frost to turn that zone into a planting calendar.

Source: san-francisco-downtown frost station, USDA zone 10a, 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 94102 is in USDA hardiness zone 10a. 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 10a

San Francisco, CA · Zone 10a Tomatoes Feb 1 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Peppers Feb 8 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Basil Feb 4 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Carrots Jan 4 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Lettuce Jan 11 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Cucumbers Feb 4 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Zucchini Feb 4 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Cilantro Jan 11 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Bush beans Feb 1 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Spinach Dec 28 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Radishes Dec 28 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Kale Jan 11 Open answer · last frost Jan 25 San Francisco, CA · Zone 10a Watermelon Feb 8 Open answer · last frost Jan 25