Waynesboro, MS 39322 Frost Dates
Frost dates for Waynesboro, MS, ZIP 39322
Typically, the last spring freeze lands around 03/17, roughly 201 days out. The first fall frost typically arrives around 11/09, about 237 frost-free days later.
Waynesboro sits in USDA Zone 8b (15 to 20°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
Zone 8b around Waynesboro has about 10 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.
Why 03/17 isn't a guarantee
03/17 is the middle of 30 years of NOAA records, not a promise. Plant by 02/24 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 Waynesboro compares
About 237 days separate Waynesboro's last and first frost, putting it 9,104 of 40,283 ZIP codes nationally. Within MS, it ranks 295 of 523.
Learn more
zone vs. frost date explains why Zone 8b and Waynesboro's frost date answer different questions, and the frost range explains how to read the range around Waynesboro's dates instead of trusting one.