Walnut, KS 66780 Frost Dates
When can you plant in Walnut, KS?
The last spring frost here typically falls around 04/04, about 219 days from today. The first fall frost typically arrives around 11/01, about 209 frost-free days later.
Walnut sits in USDA Zone 7a (0 to 5°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.
What to do before the first frost
About 9 weeks of growing season left in Walnut before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Walnut compares
Walnut's growing season runs about 209 days, ranking 15,431 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 23 of 745.
Learn more
the frost range covers how to read the range around Walnut's dates instead of trusting one. local microclimates covers what one yard in Walnut can differ from the 66780 normal.