When to plant in McComb, MS
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for McComb, Mississippi — all computed from McComb's nearest NOAA weather station.
A generous ~252-day season lets McComb gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. Zone 8b means many perennials and even some tender shrubs overwinter in McComb, while your frost dates still decide when annuals go out.
Frost probability
MCCOMB/PIKE CO/JOHN E LEWIS AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are McComb’s own odds, recorded at MCCOMB/PIKE CO/JOHN E LEWIS AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 17 | Mar 28 | Mar 8 | Oct 24 | Nov 7 | Nov 25 |
| 32°F | Apr 2 | Mar 11 | Feb 17 | Nov 1 | Nov 18 | Dec 7 |
| 28°F | Mar 18 | Feb 25 | Jan 27 | Nov 9 | Dec 1 | Jan 1 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in McComb, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 34 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
McComb planting FAQ
When is the last spring frost in McComb, MS?
On average, the last spring frost in McComb is around March 11 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in McComb, MS?
The first fall frost in McComb typically arrives around November 18 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is McComb in?
McComb is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in McComb?
There are roughly 252 frost-free days in McComb (a long growing season), running from the average last frost around March 11 to the first fall frost near November 18.
When should I plant tomatoes in McComb?
In McComb, start tomato seeds indoors around January 14–January 28, then transplant seedlings outdoors around March 18 once the danger of frost has passed.
Never miss a window in McComb
An email when it’s time to start seeds, transplant, and sow — timed to McComb’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at MCCOMB/PIKE CO/JOHN E LEWIS AP, 7 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in McComb, MS — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093919. Retrieved from https://blissgarden.com/mississippi/mccomb.