When to plant watermelons in Montgomery: 17 March – 20 August

In Montgomery, watermelon: sow for seedlings from 27 January to 23 July; plant into a greenhouse from 24 February to 20 August; plant out into open ground from 17 March to 20 August.

Watermelon in Montgomery: soil, season and weather

In Montgomery the soil, not frost, sets the date: the last frost is over around 1 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 17 March, 16 days later.

Last spring frost	1 March
Top 7 cm of soil at 18 °C	17 March, 16 days after the last frost
Into an unheated greenhouse	24 February – 20 August; February outside: 8.2 °C at night, 18.8 °C by day; card 18–35 °C
First autumn frost	29 November, 257 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	15 May – 18 October
Days left for picking	198
Daylight	11:06 on 17 February, 12:01 on 17 March
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 7 rainy days

The same dates in Montgomery hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Montgomery: care after planting

Planted on 17 March: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

17 March — feed: balanced (NPK)

Pests and diseases of watermelon to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Montgomery during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 33.6 °C. Nights average below 18 °C in March–May and October, November (9.5–17.7 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	21.4	10.4	128	11	11:57
April	24.9	13	106	8	12:58
May	29.3	17.7	124	10	13:48
June	31.8	21.4	121	14	14:16
July	33.6	23.3	96	16	14:05
August	33.1	23.1	108	15	13:22
September	31.3	20.8	87	8	12:24
October	26.3	15.4	80	6	11:25
November	20.2	9.5	72	7	10:31

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Montgomery, Pensacola is 22 days earlier and Huntsville 48 days later.

City	Distance	Date	Difference
Birmingham (United States)	136 km	9 April – 17 August	23 days later
Pensacola	235 km	23 February – 9 September	22 days earlier
Atlanta	235 km	13 April – 13 August	27 days later
Macon	253 km	23 March – 22 August	6 days later
Mobile	255 km	24 February – 5 September	21 days earlier
Huntsville	259 km	4 May – 5 August	48 days later

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.

Questions