FrostDateCheck

Washington, NE 68068 Frost Dates

68068, near Washington, NE: the frost window

Zone 6a

The last spring frost here typically falls around 04/19, about 234 days from today. Fall's first freeze usually shows up around 10/17, roughly 180 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Washington in Zone 6a (-10 to -5°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

Washington's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

Why 04/19 isn't a guarantee

04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.

Washington against the rest of the dataset

Washington's growing season runs about 180 days, ranking 25,106 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 61 of 605.

Learn more

Two guides worth reading on 68068: zone vs. frost date, on why Zone 6a and Washington's frost date answer different questions, and the frost range, on how to read the range around Washington's dates instead of trusting one.