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USDA Hardiness Zone 9b

Frost Dates for 95682 — Cameron Park, California

Averages from Placerville, Ca US, the nearest reporting station, 8.8 miles away.

Plant tender crops after March 31, and expect the first autumn freeze around November 21. That leaves about 237 frost-free days.

Last spring frost
March 31

50% probability

First fall frost
November 21

50% probability

Growing season
237 days

frost-free

Hardiness zone
9b

25 to 30°F annual low

Planting calendar for 95682

What to do and when, based on the frost normals for Cameron Park, California
WhenWhat to do
January 20 – February 3

Start peppers and aubergines indoors

They need eight to ten weeks under lights before they can go out.

February 3 – February 17

Start tomatoes indoors

Six to eight weeks gives a transplant big enough to set fruit early.

March 3 – March 17

Sow peas, spinach, lettuce, radish outdoors

These tolerate light frost and prefer to germinate in cool soil.

March 31 onward

Transplant tomatoes, peppers, basil, squash, cucumbers

The average last freeze has passed — still watch the actual forecast.

by August 29

Sow the autumn crop of carrots, beets and brassicas

They need about twelve weeks to size up before growth stops.

by November 7

Harvest tender crops, or be ready to cover them

A first freeze two weeks early is well within normal variation.

November 21 onward

Plant garlic, mulch beds, lift tender bulbs

Garlic wants a cold spell; bare soil loses structure over winter.

What these dates mean

Wait until after March 31 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Cameron Park, California are past their last freeze. Harvest before November 21, which leaves roughly 237 frost-free days.

ZIP 95682 sits in USDA hardiness zone 9b, meaning the average coldest night of the year falls between 25 to 30°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.

These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.

Other zone 9b ZIP codes in California