Merriam, KS 66204 Frost Dates
Merriam, KS: when does the frost end?
Around 04/10 is the usual last spring frost, about 225 days away. Fall's first freeze usually shows up around 10/29, roughly 202 days after the last spring frost.
Zone 6b (-5 to 0°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 Merriam, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Merriam'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
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Merriam against the rest of the dataset
About 202 days separate Merriam's last and first frost, putting it 17,195 of 40,283 ZIP codes nationally. Within KS, it ranks 92 of 745.
Learn more
Before leaning on 66204's figures: local microclimates explains what one yard in Merriam can differ from the 66204 normal, while zone vs. frost date explains why Zone 6b and Merriam's frost date answer different questions.