When to plant in Cullman, AL
USDA Zone 8aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Cullman, Alabama — all computed from Cullman's nearest NOAA weather station.
In zone 8a, Cullman supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Cullman is now 10 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SAINT BERNARD · 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 Cullman’s own odds, recorded at SAINT BERNARD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 13 | Mar 28 | Oct 10 | Oct 24 | Nov 5 |
| 32°F | Apr 20 | Mar 31 | Mar 14 | Oct 20 | Nov 1 | Nov 16 |
| 28°F | Apr 7 | Mar 18 | Feb 27 | Oct 29 | Nov 11 | Dec 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 Cullman, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 5 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.
Cullman planting FAQ
When is the last spring frost in Cullman, AL?
Plan for the last spring frost in Cullman around March 31 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Cullman, AL?
The first fall frost in Cullman typically arrives around November 1 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Cullman in?
Cullman is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Cullman?
Cullman has about 215 frost-free days — a long growing season — between the average last spring frost (March 31) and first fall frost (November 1).
When should I plant tomatoes in Cullman?
For Cullman, sow tomatoes indoors about February 3–February 17 and move the seedlings out around April 7, after the last spring frost.
Never miss a window in Cullman
An email when it’s time to start seeds, transplant, and sow — timed to Cullman’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hartselle · 31 km
- Decatur · 46 km
- Jasper · 54 km
- Gardendale · 56 km
- Clay · 58 km
- Albertville · 59 km
- Madison · 60 km
- Huntsville · 60 km
Frost dates recorded at SAINT BERNARD, 3 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 Cullman, AL — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00017157. Retrieved from https://blissgarden.com/alabama/cullman.