Campbell, MO 63933 Frost Dates
Frost dates for Campbell, MO, ZIP 63933
The last spring frost here typically falls around 03/29, about 213 days from today. The first fall frost typically arrives around 11/03, about 221 frost-free days later.
Campbell sits in USDA Zone 7b (5 to 10°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 7b around Campbell has about 10 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 Campbell's last frost
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Campbell compares
At roughly 221 frost-free days, Campbell places 12,535 of 40,283 ZIP codes in this dataset. Within MO, it ranks 34 of 1,129.
Learn more
zone vs. frost date explains why Zone 7b and Campbell's frost date answer different questions, and the frost range explains how to read the range around Campbell's dates instead of trusting one.