Weir, MS 39772 Frost Dates
Weir, MS: when does the frost end?
Typically, the last spring freeze lands around 03/30, roughly 214 days out. Fall's first freeze usually shows up around 11/04, roughly 218 days after the last spring frost.
Weir 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 Weir'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
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/12 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.
Weir against the rest of the dataset
About 218 days separate Weir's last and first frost, putting it 13,331 of 40,283 ZIP codes nationally. Within MS, it ranks 470 of 523.
Learn more
Before leaning on 39772's figures: zone vs. frost date explains why Zone 8a and Weir's frost date answer different questions, while the frost range explains how to read the range around Weir's dates instead of trusting one.