Merriam, KS 66216 Frost Dates
Frost dates for Merriam, KS, ZIP 66216
The last spring frost here typically falls around 04/10, about 225 days from today. The first fall frost typically arrives around 10/29, about 202 frost-free days later.
The USDA Plant Hardiness Zone Map puts Merriam in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's 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
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/27 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Merriam compares
At roughly 202 frost-free days, Merriam places 17,197 of 40,283 ZIP codes in this dataset. Within KS, it ranks 94 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 66216 normal.