Natchez, MS 39190 Frost Dates
39190, near Natchez, MS: the frost window
Typically, the last spring freeze lands around 03/16, roughly 200 days out. Fall's first freeze usually shows up around 11/09, roughly 237 days after the last spring frost.
Natchez 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
Natchez's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Natchez's last frost
03/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Natchez against the rest of the dataset
At roughly 237 frost-free days, Natchez places 9,084 of 40,283 ZIP codes in this dataset. Within MS, it ranks 293 of 523.
Learn more
Two guides worth reading on 39190: local microclimates, on what one yard in Natchez can differ from the 39190 normal, and zone vs. frost date, on why Zone 8b and Natchez's frost date answer different questions.