Jackson, MS 39060 Frost Dates
Jackson, MS: when does the frost end?
Around 03/06 is the usual last spring frost, about 190 days away. Fall's first freeze usually shows up around 11/19, roughly 258 days after the last spring frost.
Jackson 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.
Stretching the season past the first frost
With roughly 12 weeks until Jackson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Jackson's last frost
03/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/24 and only about 1 year in 10 sees frost after that.
Jackson against the rest of the dataset
About 258 days separate Jackson's last and first frost, putting it 6,619 of 40,283 ZIP codes nationally. Within MS, it ranks 70 of 523.
Learn more
Before leaning on 39060's figures: local microclimates explains what one yard in Jackson can differ from the 39060 normal, while zone vs. frost date explains why Zone 8b and Jackson's frost date answer different questions.