Clarkson, NE 68629 Frost Dates
Clarkson, NE: when does the frost end?
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/10, roughly 165 days after the last spring frost.
Clarkson sits in USDA Zone 5b (-15 to -10°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 6 weeks until Clarkson'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
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Clarkson against the rest of the dataset
About 165 days separate Clarkson's last and first frost, putting it 30,681 of 40,283 ZIP codes nationally. Within NE, it ranks 297 of 605.
Learn more
Before leaning on 68629's figures: local microclimates explains what one yard in Clarkson can differ from the 68629 normal, while zone vs. frost date explains why Zone 5b and Clarkson's frost date answer different questions.