Bearcreek, MT 59007 Frost Dates
When can you plant in Bearcreek, MT?
Around 06/03 is the usual last spring frost, about 279 days away. The first fall frost typically arrives around 09/19, about 106 frost-free days later.
The USDA Plant Hardiness Zone Map puts Bearcreek in Zone 5a (-20 to -15°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 3 weeks of growing season left in Bearcreek 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
06/03 is the middle of 30 years of NOAA records, not a promise. Plant by 05/19 and you're betting against frost in roughly 9 years out of 10. 06/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bearcreek compares
At roughly 106 frost-free days, Bearcreek places 39,590 of 40,283 ZIP codes in this dataset. Within MT, it ranks 289 of 392.
Learn more
the frost range covers how to read the range around Bearcreek's dates instead of trusting one. local microclimates covers what one yard in Bearcreek can differ from the 59007 normal.