Blue Rapids, KS 66411 Frost Dates
Frost dates for Blue Rapids, KS, ZIP 66411
The last spring frost here typically falls around 04/25, about 240 days from today. The first fall frost typically arrives around 10/13, about 171 frost-free days later.
Zone 6a (-10 to -5°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 Blue Rapids, not a forecast for this year.
What to do before the first frost
Zone 6a around Blue Rapids has about 7 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.
How much risk comes with planting early here
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Blue Rapids compares
At roughly 171 frost-free days, Blue Rapids places 28,739 of 40,283 ZIP codes in this dataset. Within KS, it ranks 653 of 745.
Learn more
zone vs. frost date explains why Zone 6a and Blue Rapids's frost date answer different questions, and the frost range explains how to read the range around Blue Rapids's dates instead of trusting one.