Westwood, MO 63151 Frost Dates
When can you plant in Westwood, MO?
The last spring frost here typically falls around 04/04, about 219 days from today. The first fall frost typically arrives around 10/29, about 206 frost-free days later.
The USDA Plant Hardiness Zone Map puts Westwood in Zone 7a (0 to 5°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
About 9 weeks of growing season left in Westwood before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Westwood compares
About 206 days separate Westwood's last and first frost, putting it 16,122 of 40,283 ZIP codes nationally. Within MO, it ranks 240 of 1,129.
Learn more
local microclimates covers what one yard in Westwood can differ from the 63151 normal. zone vs. frost date covers why Zone 7a and Westwood's frost date answer different questions.