Houston, MO 65564 Frost Dates
Frost dates for Houston, MO, ZIP 65564
Typically, the last spring freeze lands around 04/10, roughly 225 days out. The first fall frost typically arrives around 10/23, about 194 frost-free days later.
Zone 7a (0 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 Houston, not a forecast for this year.
What to do before the first frost
Zone 7a around Houston has about 8 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.
Why 04/10 isn't a guarantee
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Houston compares
Houston's growing season runs about 194 days, ranking 19,500 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 640 of 1,129.
Learn more
zone vs. frost date explains why Zone 7a and Houston's frost date answer different questions, and the frost range explains how to read the range around Houston's dates instead of trusting one.