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Last and first frost dates in Jackson

United States

In Jackson the last spring frost usually comes around 24 February and the first autumn frost around 28 November, which leaves about 277 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 3 March to 8 August.

Last spring frostaround 24 February
First autumn frostaround 28 November
Frost-free days277 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 Jackson?

The last frost in Jackson usually comes around 24 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 3 February, while corn waits until 3 March. The first autumn frost follows around 28 November, about 277 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha1 January – 20 August10 February – 29 September3 March – 29 September
Ageratumfrom 16 December—from 3 March
Arugula——sow 3 February – 24 October
Basil16 January – 26 September23 February – 3 November16 March – 3 November
Beet——sow 3 February – 29 September
Bell Pepper25 December – 9 June23 February – 8 August16 March – 8 August
Black-eyed Susanfrom 10 December—from 3 March
Bok Choy6 January – 7 October10 February – 11 November3 March – 11 November
Borage——sow 3 March – 4 October
Broad bean——sow 3 February – 20 August
Broccoli——sow 3 February – 13 August
Brussels Sprouts29 November – 11 July13 January – 25 August3 February – 25 August
Busy Lizziefrom 9 December—from 3 March
Cabbage——sow 3 February – 21 July
Calendula——sow from 3 February
Carrot——sow 3 February – 5 September
Cauliflower2 December – 13 August13 January – 24 September3 February – 24 September
Celeriac25 November – 10 June10 February – 26 August3 March – 26 August
Celery25 November – 20 June10 February – 5 September3 March – 5 September
Celosiafrom 30 Decemberfrom 13 Februaryfrom 6 March
Chamomile——sow 3 February – 24 September
Chayote14 November – 3 June10 February – 30 August3 March – 30 August
Chickpea——sow 3 February – 10 August
Chicory19 December – 4 September—3 February – 29 September
Chili Pepper25 December – 16 July23 February – 14 September16 March – 14 September
China asterfrom 2 Januaryfrom 23 Februaryfrom 16 March
Chives——sow 3 February – 15 September
Cilantro——sow 3 February – 25 September
Corn——sow 3 March – 10 August
Corn poppy——sow from 3 February
Cosmosfrom 30 Decemberfrom 13 Februaryfrom 6 March
Cucumber26 January – 16 August23 February – 13 September16 March – 13 September
Daikon——sow 3 February – 22 September
Delphiniumfrom 15 November—from 3 February
Dill——sow 3 February – 5 October
Edging lobeliafrom 9 December—from 3 March
Eggplant25 December – 9 June23 February – 8 August16 March – 8 August
Florence fennel27 December – 20 August10 February – 4 October3 March – 4 October
Foxglovefrom 28 October—from 3 February
Garden sorrel——sow 3 February – 23 September
Green Beans——sow 6 March – 18 August
Hollyhock——sow from 3 February
Hyssop——sow 3 February – 16 August
Kale——sow 3 February – 17 September
Kiwano9 January – 23 August10 February – 24 September3 March – 24 September
Kohlrabi——sow 3 February – 27 September
Leek4 November – 1 June13 January – 10 August3 February – 10 August
Lemon balm——sow 3 February – 19 September
Lettuce——sow 3 February – 2 October
Lisianthusfrom 18 Octoberfrom 13 Januaryfrom 3 February
Lovage——sow from 3 February
Luffa12 January – 17 June23 February – 29 July16 March – 29 July
Marigoldfrom 30 Decemberfrom 10 Februaryfrom 3 March
Marjoram25 December – 4 September—16 March – 3 November
Melon26 January – 3 August23 February – 31 August16 March – 31 August
Microgreens——sow 6 March – 14 November
Moringa6 February – 9 September2 April – 3 November23 April – 3 November
Moss rosefrom 16 December—from 3 March
Mustard greens——sow 3 February – 14 October
Napa cabbage8 January – 14 September10 February – 17 October3 March – 17 October
Nasturtiumfrom 3 Januaryfrom 10 Februaryfrom 3 March
Okra12 January – 28 August23 February – 9 October16 March – 9 October
Oregano14 November – 25 August13 January – 24 October3 February – 24 October
Pansyfrom 18 Novemberfrom 13 Januaryfrom 3 February
Parsley——sow 3 February – 13 September
Parsnip——sow 3 February – 2 August
Peanut17 January – 24 July23 February – 30 August16 March – 30 August
Peas——sow 3 February – 15 September
Petuniafrom 22 Decemberfrom 23 Februaryfrom 16 March
Physalis27 December – 21 July10 February – 4 September3 March – 4 September
Pumpkin12 January – 22 June23 February – 3 August16 March – 3 August
Purple coneflowerfrom 12 November—from 3 February
Radish——sow 3 February – 29 October
Sage25 November – 21 August13 January – 9 October3 February – 9 October
Scarlet sagefrom 20 December—from 3 March
Snapdragonfrom 9 Novemberfrom 13 Januaryfrom 3 February
Soybean——sow 16 March – 9 September
Spinach——sow 3 February – 4 October
Stevia23 December – 12 July10 February – 30 August3 March – 30 August
Stock——sow from 3 February
Sunflower——sow from 6 March
Sweet alyssum——sow from 3 February
Sweet Corn19 January – 4 September10 February – 26 September3 March – 26 September
Sweet peafrom 2 Decemberfrom 13 Januaryfrom 3 February
Sweet William——sow from 3 February
Swiss Chard——sow 3 February – 29 September
Thyme——sow 3 February – 10 August
Tomato20 December – 17 June10 February – 8 August3 March – 8 August
Turnip——sow 3 February – 1 October
Watercress——sow 3 February – 12 October
Watermelon26 January – 22 July23 February – 19 August16 March – 19 August
Zinniafrom 26 Februaryfrom 2 Aprilfrom 23 April
Zucchini2 February – 21 August23 February – 11 September16 March – 11 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 Jackson

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 40 days before the last spring frost and 15 °C 10 days before it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C15 January40 days earlier
15 °C14 February10 days earlier
18 °C16 March20 days later

Frost dates near Jackson

Of the nearest cities on our list, the last spring frost ends earliest in New Orleans (22 January) and latest in Lafayette (19 February).

CityDistanceLast spring frostFirst autumn frost
Baton Rouge227 km6 February9 December
Gulfport236 km7 February24 November
New Orleans261 km22 January15 December
Mobile268 km24 January15 December
Lafayette290 km19 February6 December

Seeds, seedlings and markets in Jackson

Within 15 km of Jackson OpenStreetMap lists 1 garden centre, 5 farm-supply shops and 1 market (collected 28 October 2026). The nearest garden centre to the city centre is Lakeland Yard and Garden, 9 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Jackson

Frosts in Jackson usually come from about 28 November to about 24 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 Jackson by month

Average weather in Jackson over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: March–November (20.1–32.9 °C). Months that average 30 °C or more by day: June–September (30.9–32.9 °C). No month averages below 0 °C at night; the coldest nights, in January, average 3.9 °C. About 1480 mm of rain falls in a year, on 138 days; April is the wettest month (185 mm) and September the driest (77 mm).

MonthDay, °CNight, °CRain, mmRainy days
January14.13.914111
February18.27.214012
March21.310.414812
April24.112.918510
May28.317.613912
June31.821.311513
July32.923.111517
August32.522.713215
September30.920.2779
October26.514.8777
November20.19929
December16.46.611911

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 29 October
Crocusby 29 October
Daffodilby 29 October
Garlicby 29 October
Grape hyacinthby 29 October
Helleboreby 29 October
Hyacinthby 29 October
Lilyby 29 October
Ornamental onionby 29 October
Peonyby 29 October
Saffronby 29 October
Snowdropby 29 October
Tulipby 29 October
Wild garlicby 29 October

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).