Marietta, MS 38856 Frost Dates
Marietta, MS: when does the frost end?
Typically, the last spring freeze lands around 04/01, roughly 216 days out. Fall's first freeze usually shows up around 11/03, roughly 216 days after the last spring frost.
Marietta 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.
Stretching the season past the first frost
With roughly 10 weeks until Marietta's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Marietta against the rest of the dataset
Marietta's growing season runs about 216 days, ranking 13,915 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 479 of 523.
Learn more
Before leaning on 38856's figures: the frost range explains how to read the range around Marietta's dates instead of trusting one, while local microclimates explains what one yard in Marietta can differ from the 38856 normal.