Fargo, ND 58102 Frost Dates
Fargo, ND: when does the frost end?
Around 05/10 is the usual last spring frost, about 255 days away. Fall's first freeze usually shows up around 09/30, roughly 143 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Fargo in Zone 4a (-30 to -25°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 5 weeks until Fargo'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
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Fargo against the rest of the dataset
About 143 days separate Fargo's last and first frost, putting it 36,482 of 40,283 ZIP codes nationally. Within ND, it ranks 74 of 405.
Learn more
Before leaning on 58102's figures: zone vs. frost date explains why Zone 4a and Fargo's frost date answer different questions, while the frost range explains how to read the range around Fargo's dates instead of trusting one.