Caledonia, MS 39740 Frost Dates
Caledonia, MS: when does the frost end?
Around 03/29 is the usual last spring frost, about 213 days away. Fall's first freeze usually shows up around 11/05, roughly 222 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 10 weeks until Caledonia's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Caledonia's last frost
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/05 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.
Caledonia against the rest of the dataset
Caledonia's growing season runs about 222 days, ranking 12,285 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 436 of 523.
Learn more
Before leaning on 39740's figures: local microclimates explains what one yard in Caledonia can differ from the 39740 normal, while zone vs. frost date explains why Zone 8a and Caledonia's frost date answer different questions.