West Fargo, ND 58078 Frost Dates
West 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.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for West Fargo, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until West 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.
West Fargo against the rest of the dataset
West Fargo's growing season runs about 143 days, ranking 36,492 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 75 of 405.
Learn more
Before leaning on 58078's figures: local microclimates explains what one yard in West Fargo can differ from the 58078 normal, while zone vs. frost date explains why Zone 4a and West Fargo's frost date answer different questions.