Birmingham, Alabama: freeze dates & growing season

Three different things get called “Birmingham” here, so this page is explicit about all three: the metro label (Birmingham), the anchor geography (Census ZCTA 35203, a downtown ZIP-code area), and the climate record (the NOAA station below). Windows are calculated from the station — not from your street address.

Climate basis: NOAA station Birmingham AP, AL (USW00013876), 5 mi (8 km) from the ZCTA 35203 centroid, elevation 615 ft, on the 1991–2020 climate normals.
Last spring freezeMarch 211-in-10 after Apr 8
First fall freezeNovember 111-in-10 before Oct 30
Frost-free season236 daysmedian at 32°F
Hard freeze, 28°Mar 7Nov 24kills even hardy greens
USDA zone8a10 to 15°F winter low not frost timing

The year

  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to Apr 8
The Birmingham year: hatched areas are the freeze-likely seasons in 1991–2020 normals.
What that means in practice
All 79 crops in Birmingham

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

Check a specific ZIP instead

Metro climates vary — elevation, water, and urban heat shift freeze dates by days to weeks. Look up your exact ZIP:

Nearby reviewed metros

Atlanta, GA · Nashville, TN · Memphis, TN · Knoxville, TN · Little Rock, AR