Bellflower, MO 63333 Frost Dates
Frost dates for Bellflower, MO, ZIP 63333
Around 04/14 is the usual last spring frost, about 229 days away. The first fall frost typically arrives around 10/23, about 191 frost-free days later.
The USDA Plant Hardiness Zone Map puts Bellflower 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 Bellflower 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.
How much risk comes with planting early here
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bellflower compares
At roughly 191 frost-free days, Bellflower places 20,908 of 40,283 ZIP codes in this dataset. Within MO, it ranks 760 of 1,129.
Learn more
zone vs. frost date explains why Zone 6b and Bellflower's frost date answer different questions, and the frost range explains how to read the range around Bellflower's dates instead of trusting one.