Flaxville, MT 59222 Frost Dates
When can you plant in Flaxville, MT?
Typically, the last spring freeze lands around 05/28, roughly 273 days out. The first fall frost typically arrives around 09/07, about 101 frost-free days later.
The USDA Plant Hardiness Zone Map puts Flaxville in Zone 4a (-30 to -25°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 1 week of growing season left in Flaxville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/28 is the middle of 30 years of NOAA records, not a promise. Plant by 05/15 and you're betting against frost in roughly 9 years out of 10. 06/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Flaxville compares
About 101 days separate Flaxville's last and first frost, putting it 39,700 of 40,283 ZIP codes nationally. Within MT, it ranks 301 of 392.
Learn more
the frost range covers how to read the range around Flaxville's dates instead of trusting one. local microclimates covers what one yard in Flaxville can differ from the 59222 normal.