Paradise, CA planting zone & frost dates

Paradise is in USDA hardiness zone 9b. The last spring frost usually comes around February 7 and the first fall frost around December 18, for a growing season of about 313 days.

USDA hardiness zone9bavg. extreme winter low 25°F to 30°F
Average last spring frostFebruary 790% chance of no frost after April 1
Average first fall frostDecember 1810% chance of frost by November 26
Growing season313 daysfrost-free days in an average year

Planting calendar for Paradise

Dates are counted from the average last spring frost (February 7) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.

CropWhen
TomatoesStart seeds indoors: Dec 13 – Dec 27
Transplant outdoors: Feb 14 – Feb 21
PeppersStart seeds indoors: Nov 29 – Dec 13
Transplant outdoors: Feb 21 – Feb 28
EggplantStart seeds indoors: Nov 29 – Dec 13
Transplant outdoors: Feb 21 – Feb 28
BroccoliStart seeds indoors: Nov 29 – Dec 13
Transplant outdoors: Jan 10 – Jan 24
CabbageStart seeds indoors: Nov 29 – Dec 13
Transplant outdoors: Jan 10 – Jan 24
Onions (sets)Plant outdoors: Jan 10 – Jan 24
PeasSow outdoors: Dec 27 – Jan 10
SpinachSow outdoors: Dec 27 – Jan 10
LettuceSow outdoors: Jan 10 – Jan 24
CarrotsSow outdoors: Jan 10 – Jan 24
PotatoesPlant outdoors: Jan 10 – Jan 24
BeansSow outdoors: Feb 14 – Feb 21
Sweet cornSow outdoors: Feb 14 – Feb 21
CucumbersSow outdoors: Feb 14 – Feb 21
Squash & zucchiniSow outdoors: Feb 14 – Feb 21
BasilStart seeds indoors: Dec 27 – Jan 10
Transplant outdoors: Feb 14 – Feb 21

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 23 (8 weeks before the average first fall frost on Dec 18).

Useful for zone 9b gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterDec 27Feb 7Apr 1
First 32°F frost in fall is beforeJan 27Dec 18Nov 26

How to read it: in spring there is a 10% chance of a frost after April 1, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 26. A hard freeze (28°F) usually ends around January 5.

Hardiness zone by ZIP code in Paradise

Nearby cities

All cities in California → · Other zone 9b cities →

Questions

What growing zone is Paradise, CA?

Paradise is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.

When is the last frost in Paradise?

The average last spring frost (32°F) in Paradise is February 7. There is still a 10% chance of frost until April 1.

When can I plant tomatoes in Paradise?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 14 – Feb 21. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Paradise, CA (USC00046685), 0.7 km (0.4 mi) from the city center, elevation 533 m, based on 25 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.