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Last and first frost dates in Stockton

United States

In Stockton the last spring frost usually comes around 4 February and the first autumn frost around 3 December, which leaves about 302 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 1 April to 13 August.

Last spring frostaround 4 February
First autumn frostaround 3 December
Frost-free days302 days

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in Stockton?

The last frost in Stockton usually comes around 4 February: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 14 January, while corn waits until 24 February. The first autumn frost follows around 3 December, about 302 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha12 December – 25 August21 January – 4 October11 February – 4 October
Ageratumfrom 14 January—from 1 April
Arugula——sow 14 January – 29 October
Basil24 February – 1 October3 April – 8 November24 April – 8 November
Beet——sow 14 January – 4 October
Bell Pepper2 February – 14 June3 April – 13 August24 April – 13 August
Black-eyed Susanfrom 20 November—from 11 February
Bok Choy17 December – 12 October21 January – 16 November11 February – 16 November
Borage——sow 11 February – 9 October
Broad bean——sow 14 January – 25 August
Broccoli——sow 14 January – 18 August
Brussels Sprouts9 November – 16 July24 December – 30 August14 January – 30 August
Busy Lizziefrom 19 November—from 11 February
Cabbage——sow 14 January – 26 July
Calendula——sow from 14 January
Carrot——sow 14 January – 10 September
Cauliflower12 November – 18 August24 December – 29 September14 January – 29 September
Celeriac5 November – 15 June21 January – 31 August11 February – 31 August
Celery5 November – 25 June21 January – 10 September11 February – 10 September
Celosiafrom 8 Februaryfrom 25 Marchfrom 15 April
Chamomile——sow 14 January – 29 September
Chayote7 November – 8 June3 February – 4 September24 February – 4 September
Chickpea——sow 14 January – 15 August
Chicory29 November – 9 September—14 January – 4 October
Chili Pepper2 February – 21 July3 April – 19 September24 April – 19 September
China asterfrom 10 Februaryfrom 3 Aprilfrom 24 April
Chives——sow 14 January – 20 September
Cilantro——sow 14 January – 30 September
Corn——sow 24 February – 15 August
Corn poppy——sow from 14 January
Cosmosfrom 8 Februaryfrom 25 Marchfrom 15 April
Cucumber6 March – 21 August3 April – 18 September24 April – 18 September
Daikon——sow 14 January – 27 September
Delphiniumfrom 26 October—from 14 January
Dill——sow 14 January – 10 October
Edging lobeliafrom 19 November—from 11 February
Eggplant2 February – 14 June3 April – 13 August24 April – 13 August
Florence fennel7 December – 25 August21 January – 9 October11 February – 9 October
Foxglovefrom 8 October—from 14 January
Garden sorrel——sow 14 January – 28 September
Green Beans——sow 15 April – 23 August
Hollyhock——sow from 14 January
Hyssop——sow 14 January – 21 August
Kale——sow 14 January – 22 September
Kiwano7 February – 28 August11 March – 29 September1 April – 29 September
Kohlrabi——sow 14 January – 2 October
Leek15 October – 6 June24 December – 15 August14 January – 15 August
Lemon balm——sow 14 January – 24 September
Lettuce——sow 14 January – 7 October
Lisianthusfrom 28 Septemberfrom 24 Decemberfrom 14 January
Lovage——sow from 14 January
Luffa20 February – 22 June3 April – 3 August24 April – 3 August
Marigoldfrom 10 Decemberfrom 21 Januaryfrom 11 February
Marjoram2 February – 9 September—24 April – 8 November
Melon6 March – 8 August3 April – 5 September24 April – 5 September
Microgreens——sow 15 April – 19 November
Moringa17 February – 14 September13 April – 8 November4 May – 8 November
Moss rosefrom 26 November—from 11 February
Mustard greens——sow 14 January – 19 October
Napa cabbage19 December – 19 September21 January – 22 October11 February – 22 October
Nasturtiumfrom 14 Decemberfrom 21 Januaryfrom 11 February
Okra20 February – 2 September3 April – 14 October24 April – 14 October
Oregano25 October – 30 August24 December – 29 October14 January – 29 October
Pansyfrom 29 Octoberfrom 24 Decemberfrom 14 January
Parsley——sow 14 January – 18 September
Parsnip——sow 14 January – 7 August
Peanut25 February – 29 July3 April – 4 September24 April – 4 September
Peas——sow 14 January – 20 September
Petuniafrom 30 Januaryfrom 3 Aprilfrom 24 April
Physalis25 January – 26 July11 March – 9 September1 April – 9 September
Pumpkin20 February – 27 June3 April – 8 August24 April – 8 August
Purple coneflowerfrom 23 October—from 14 January
Radish——sow 14 January – 3 November
Sage5 November – 26 August24 December – 14 October14 January – 14 October
Scarlet sagefrom 18 January—from 1 April
Snapdragonfrom 20 Octoberfrom 24 Decemberfrom 14 January
Soybean——sow 24 April – 14 September
Spinach——sow 14 January – 9 October
Stevia21 January – 17 July11 March – 4 September1 April – 4 September
Stock——sow from 14 January
Sunflower——sow from 15 April
Sweet alyssum——sow from 14 January
Sweet Corn2 February – 9 September24 February – 1 October17 March – 1 October
Sweet peafrom 12 Novemberfrom 24 Decemberfrom 14 January
Sweet William——sow from 14 January
Swiss Chard——sow 14 January – 4 October
Thyme——sow 14 January – 15 August
Tomato18 January – 22 June11 March – 13 August1 April – 13 August
Turnip——sow 14 January – 6 October
Watercress——sow 14 January – 17 October
Watermelon6 March – 27 July3 April – 24 August24 April – 24 August
Zinniafrom 9 Marchfrom 13 Aprilfrom 4 May
Zucchini13 March – 26 August3 April – 16 September24 April – 16 September

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

When the soil warms up in Stockton

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 16 days before the last spring frost and 15 °C 56 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C19 January16 days earlier
15 °C1 April56 days later
18 °C24 April79 days later

Frost dates near Stockton

Of the nearest cities on our list, the last spring frost ends earliest in Fresno (5 February) and latest in Carson City (1 May).

CityDistanceLast spring frostFirst autumn frost
Sacramento71 km18 February11 December
San Jose87 km24 February—
San Francisco101 km——
Carson City188 km1 May22 October
Fresno190 km5 February5 December

Seeds, seedlings and markets in Stockton

Within 15 km of Stockton OpenStreetMap lists 2 garden centres and 1 farm shop (collected 28 October 2026). The nearest garden centre to the city centre is Pacific Ave Indoor, 4 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Stockton

Frosts in Stockton usually come from about 3 December to about 4 February. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Stockton by month

Average weather in Stockton over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: April–October (23.3–36 °C). Months that average 30 °C or more by day: June–September (32.7–36 °C). No month averages below 0 °C at night; the coldest nights, in December, average 4.8 °C. About 613 mm of rain falls in a year, on 57 days; December is the wettest month (122 mm) and July the driest (0 mm).

MonthDay, °CNight, °CRain, mmRainy days
January14.14.912010
February16.55957
March18.56.911612
April23.39.2375
May28.112.1183
June33.415.110
July3616.400
August35.516.710
September32.715.471
October26.811.6383
November18.36.9586
December13.54.812210

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropWhen to plant
Bearded Irisby 3 November
Crocusby 3 November
Daffodilby 3 November
Garlic3 November – end of December
Grape hyacinthby 3 November
Helleboreby 3 November
Hyacinthby 3 November
Lilyby 3 November
Ornamental onionby 3 November
Peonyby 3 November
Saffronby 3 November
Snowdropby 3 November
Tulipby 3 November
Wild garlicby 3 November

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).