FrostDateCheck

St. Francisville, LA 70787 Frost Dates

When can you plant in St. Francisville, LA?

Zone 9a

The last spring frost here typically falls around 03/02, about 186 days from today. The first fall frost typically arrives around 11/24, about 268 frost-free days later.

Zone 9a (20 to 25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for St. Francisville, not a forecast for this year.

What to do before the first frost

About 13 weeks of growing season left in St. Francisville 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

03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 and you're betting against frost in roughly 9 years out of 10. 03/29 is the safer bet, historically only a 1-in-10 chance of frost that late.

How St. Francisville compares

At roughly 268 frost-free days, St. Francisville places 5,800 of 40,283 ZIP codes in this dataset. Within LA, it ranks 408 of 710.

Learn more

local microclimates covers what one yard in St. Francisville can differ from the 70787 normal. zone vs. frost date covers why Zone 9a and St. Francisville's frost date answer different questions.