FrostDateCheck

Rainbow City, AL 35906 Frost Dates

When can you plant in Rainbow City, AL?

Zone 8a

Typically, the last spring freeze lands around 03/19, roughly 203 days out. The first fall frost typically arrives around 11/13, about 240 frost-free days later.

Rainbow City sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

About 11 weeks of growing season left in Rainbow City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

03/19 is the middle of 30 years of NOAA records, not a promise. Plant by 02/27 and you're betting against frost in roughly 9 years out of 10. 04/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Rainbow City compares

At roughly 240 frost-free days, Rainbow City places 8,678 of 40,283 ZIP codes in this dataset. Within AL, it ranks 293 of 809.

Learn more

the frost range covers how to read the range around Rainbow City's dates instead of trusting one. local microclimates covers what one yard in Rainbow City can differ from the 35906 normal.