When to plant in Calera, AL
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Calera, Alabama — all computed from Calera's nearest NOAA weather station.
With about 249 frost-free days, Calera supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. In zone 8b, Calera 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 Calera is now 7 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
ALABASTER SHELBY CO 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 Calera’s own odds, recorded at ALABASTER SHELBY CO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 14 | Mar 27 | Mar 7 | Oct 23 | Nov 4 | Nov 21 |
| 32°F | Mar 31 | Mar 12 | Feb 20 | Nov 1 | Nov 16 | Dec 4 |
| 28°F | Mar 17 | Feb 27 | Jan 31 | Nov 10 | Dec 1 | Dec 28 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 20Full-year planting calendar
Each bar is the exact window to take a planting action in Calera, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 23 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.
Calera planting FAQ
When is the last spring frost in Calera, AL?
Plan for the last spring frost in Calera around March 12 (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 Calera, AL?
In Calera, the first 32°F freeze of fall lands around November 16 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Calera in?
Calera is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Calera?
Calera has about 249 frost-free days — a long growing season — between the average last spring frost (March 12) and first fall frost (November 16).
When should I plant tomatoes in Calera?
For Calera, sow tomatoes indoors about January 15–January 29 and move the seedlings out around March 19, after the last spring frost.
Never miss a window in Calera
An email when it’s time to start seeds, transplant, and sow — timed to Calera’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ALABASTER SHELBY CO 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 Calera, AL — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053864. Retrieved from https://blissgarden.com/alabama/calera.