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Last and first frost dates in Corpus Christi

United States

In Corpus Christi the last spring frost usually comes around 27 January and the first autumn frost around 23 December, which leaves about 330 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 3 February to 2 September.

Last spring frostaround 27 January
First autumn frostaround 23 December
Frost-free days330 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 Corpus Christi?

The last frost in Corpus Christi usually comes around 27 January: 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 6 January, while corn waits until 3 February. The first autumn frost follows around 23 December, about 330 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha4 December – 14 September13 January – 24 October3 February – 24 October
Ageratumfrom 18 November—from 3 February
Arugula——sow 6 January – 18 November
Basil8 December – 21 October15 January – 28 November5 February – 28 November
Beet——sow 6 January – 24 October
Bell Pepper16 November – 4 July15 January – 2 September5 February – 2 September
Black-eyed Susanfrom 12 November—from 3 February
Bok Choy9 December – 1 November13 January – 6 December3 February – 6 December
Borage——sow 3 February – 29 October
Broad bean——sow 6 January – 14 September
Broccoli——sow 6 January – 7 September
Brussels Sprouts1 November – 5 August16 December – 19 September6 January – 19 September
Busy Lizziefrom 11 November—from 3 February
Cabbage——sow 6 January – 15 August
Calendula——sow from 6 January
Carrot——sow 6 January – 30 September
Cauliflower4 November – 7 September16 December – 19 October6 January – 19 October
Celeriac28 October – 5 July13 January – 20 September3 February – 20 September
Celery28 October – 15 July13 January – 30 September3 February – 30 September
Celosiafrom 29 Novemberfrom 13 Januaryfrom 3 February
Chamomile——sow 6 January – 19 October
Chayote17 October – 28 June13 January – 24 September3 February – 24 September
Chickpea——sow 6 January – 4 September
Chicory21 November – 29 September—6 January – 24 October
Chili Pepper16 November – 10 August15 January – 9 October5 February – 9 October
China asterfrom 24 Novemberfrom 15 Januaryfrom 5 February
Chives——sow 6 January – 10 October
Cilantro——sow 6 January – 20 October
Corn——sow 3 February – 4 September
Corn poppy——sow from 6 January
Cosmosfrom 29 Novemberfrom 13 Januaryfrom 3 February
Cucumber18 December – 10 September15 January – 8 October5 February – 8 October
Daikon——sow 6 January – 17 October
Delphiniumfrom 18 October—from 6 January
Dill——sow 6 January – 30 October
Edging lobeliafrom 11 November—from 3 February
Eggplant16 November – 4 July15 January – 2 September5 February – 2 September
Florence fennel29 November – 14 September13 January – 29 October3 February – 29 October
Foxglovefrom 30 September—from 6 January
Garden sorrel——sow 6 January – 18 October
Green Beans——sow 3 February – 12 September
Hollyhock——sow from 6 January
Hyssop——sow 6 January – 10 September
Kale——sow 6 January – 12 October
Kiwano12 December – 17 September13 January – 19 October3 February – 19 October
Kohlrabi——sow 6 January – 22 October
Leek7 October – 26 June16 December – 4 September6 January – 4 September
Lemon balm——sow 6 January – 14 October
Lettuce——sow 6 January – 27 October
Lisianthusfrom 20 Septemberfrom 16 Decemberfrom 6 January
Lovage——sow from 6 January
Luffa4 December – 12 July15 January – 23 August5 February – 23 August
Marigoldfrom 2 Decemberfrom 13 Januaryfrom 3 February
Marjoram16 November – 29 September—5 February – 28 November
Melon18 December – 28 August15 January – 25 September5 February – 25 September
Microgreens——sow 3 February – 9 December
Moringa30 November – 4 October24 January – 28 November14 February – 28 November
Moss rosefrom 18 November—from 3 February
Mustard greens——sow 6 January – 8 November
Napa cabbage11 December – 9 October13 January – 11 November3 February – 11 November
Nasturtiumfrom 6 Decemberfrom 13 Januaryfrom 3 February
Okra4 December – 22 September15 January – 3 November5 February – 3 November
Oregano17 October – 19 September16 December – 18 November6 January – 18 November
Pansyfrom 21 Octoberfrom 16 Decemberfrom 6 January
Parsley——sow 6 January – 8 October
Parsnip——sow 6 January – 27 August
Peanut9 December – 18 August15 January – 24 September5 February – 24 September
Peas——sow 6 January – 10 October
Petuniafrom 13 Novemberfrom 15 Januaryfrom 5 February
Physalis29 November – 15 August13 January – 29 September3 February – 29 September
Pumpkin4 December – 17 July15 January – 28 August5 February – 28 August
Purple coneflowerfrom 15 October—from 6 January
Radish——sow 6 January – 23 November
Sage28 October – 15 September16 December – 3 November6 January – 3 November
Scarlet sagefrom 22 November—from 3 February
Snapdragonfrom 12 Octoberfrom 16 Decemberfrom 6 January
Soybean——sow 5 February – 4 October
Spinach——sow 6 January – 29 October
Stevia25 November – 6 August13 January – 24 September3 February – 24 September
Stock——sow from 6 January
Sunflower——sow from 3 February
Sweet alyssum——sow from 6 January
Sweet Corn22 December – 29 September13 January – 21 October3 February – 21 October
Sweet peafrom 4 Novemberfrom 16 Decemberfrom 6 January
Sweet William——sow from 6 January
Swiss Chard——sow 6 January – 24 October
Thyme——sow 6 January – 4 September
Tomato22 November – 12 July13 January – 2 September3 February – 2 September
Turnip——sow 6 January – 26 October
Watercress——sow 6 January – 6 November
Watermelon18 December – 16 August15 January – 13 September5 February – 13 September
Zinniafrom 20 Decemberfrom 24 Januaryfrom 14 February
Zucchini25 December – 15 September15 January – 6 October5 February – 6 October

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 Corpus Christi

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo).

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °Calready in the first week of January—
15 °Calready in the first week of January—
18 °C5 February9 days later

Frost dates near Corpus Christi

Of the nearest cities on our list, the last spring frost ends earliest in Brownsville (19 January) and latest in Austin (19 February).

CityDistanceLast spring frostFirst autumn frost
Brownsville201 km19 January23 December
Reynosa203 km22 January23 December
Nuevo Laredo212 km27 January23 December
San Antonio215 km10 February5 December
Austin283 km19 February13 December

What to grow at home in winter in Corpus Christi

Frosts in Corpus Christi usually come from about 23 December to about 27 January. 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 Corpus Christi by month

Average weather in Corpus Christi over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: February–December (21.7–33.2 °C). Months that average 30 °C or more by day: June–September (31.4–33.2 °C). No month averages below 0 °C at night; the coldest nights, in January, average 10.8 °C. About 950 mm of rain falls in a year, on 123 days; September is the wettest month (111 mm) and February the driest (39 mm).

MonthDay, °CNight, °CRain, mmRainy days
January19.710.8709
February22.112.7397
March25.116.9819
April27.319.47310
May29.923.19813
June31.825.211013
July32.825.89010
August33.2268611
September31.424.411115
October28.820.66610
November24.416.2729
December21.713547

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 23 November
Crocusby 23 November
Daffodilby 23 November
Garlicby 23 November
Grape hyacinthby 23 November
Helleboreby 23 November
Hyacinthby 23 November
Lilyby 23 November
Ornamental onionby 23 November
Peonyby 23 November
Saffronby 23 November
Snowdropby 23 November
Tulipby 23 November
Wild garlicby 23 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).