Sartell, MN 56377 Frost Dates
When can you plant in Sartell, MN?
The last spring frost here typically falls around 05/10, about 255 days from today. The first fall frost typically arrives around 09/29, about 140 frost-free days later.
Sartell sits in USDA Zone 4b (-25 to -20°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
About 5 weeks of growing season left in Sartell before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/10 isn't a guarantee
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sartell compares
Sartell's growing season runs about 140 days, ranking 37,026 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 736 of 943.
Learn more
the frost range covers how to read the range around Sartell's dates instead of trusting one. local microclimates covers what one yard in Sartell can differ from the 56377 normal.