Caledonia, MS 39766 Frost Dates
Caledonia, MS: when does the frost end?
Typically, the last spring freeze lands around 03/13, roughly 197 days out. Fall's first freeze usually shows up around 11/12, roughly 244 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Caledonia in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 11 weeks until Caledonia's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/13 isn't a guarantee
03/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Caledonia against the rest of the dataset
About 244 days separate Caledonia's last and first frost, putting it 8,247 of 40,283 ZIP codes nationally. Within MS, it ranks 211 of 523.
Learn more
Before leaning on 39766's figures: local microclimates explains what one yard in Caledonia can differ from the 39766 normal, while zone vs. frost date explains why Zone 8a and Caledonia's frost date answer different questions.