Merriam, KS 66201 Frost Dates
Frost dates for Merriam, KS, ZIP 66201
The last spring frost here typically falls around 04/04, about 219 days from today. The first fall frost typically arrives around 11/02, about 211 frost-free days later.
Merriam sits in USDA Zone 6b (-5 to 0°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
Zone 6b around Merriam has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Merriam's last frost
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Merriam compares
About 211 days separate Merriam's last and first frost, putting it 14,739 of 40,283 ZIP codes nationally. Within KS, it ranks 4 of 745.
Learn more
the frost range explains how to read the range around Merriam's dates instead of trusting one, and local microclimates explains what one yard in Merriam can differ from the 66201 normal.