Waterville, MN 56096 Frost Dates
When can you plant in Waterville, MN?
Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/04, about 155 frost-free days later.
The USDA Plant Hardiness Zone Map puts Waterville in Zone 4b (-25 to -20°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 5 weeks of growing season left in Waterville 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
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Waterville compares
At roughly 155 frost-free days, Waterville places 33,999 of 40,283 ZIP codes in this dataset. Within MN, it ranks 354 of 943.
Learn more
the frost range covers how to read the range around Waterville's dates instead of trusting one. local microclimates covers what one yard in Waterville can differ from the 56096 normal.