FrostDateCheck

Morgan City, MS 38959 Frost Dates

Frost dates for Morgan City, MS, ZIP 38959

Zone 8b

The last spring frost here typically falls around 03/03, about 187 days from today. The first fall frost typically arrives around 11/21, about 263 frost-free days later.

The USDA Plant Hardiness Zone Map puts Morgan City in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

Zone 8b around Morgan City has about 12 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.

The actual range around Morgan City's last frost

03/03 is the middle of 30 years of NOAA records, not a promise. Plant by 02/10 and you're betting against frost in roughly 9 years out of 10. 03/24 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Morgan City compares

Morgan City's growing season runs about 263 days, ranking 6,152 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 42 of 523.

Learn more

zone vs. frost date explains why Zone 8b and Morgan City's frost date answer different questions, and the frost range explains how to read the range around Morgan City's dates instead of trusting one.