Waldorf, MN 56091 Frost Dates
Waldorf, MN: when does the frost end?
The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/04, roughly 155 days after the last spring frost.
Waldorf sits in USDA Zone 5a (-20 to -15°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.
Stretching the season past the first frost
With roughly 5 weeks until Waldorf's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Waldorf against the rest of the dataset
Waldorf's growing season runs about 155 days, ranking 34,156 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 376 of 943.
Learn more
Before leaning on 56091's figures: local microclimates explains what one yard in Waldorf can differ from the 56091 normal, while zone vs. frost date explains why Zone 5a and Waldorf's frost date answer different questions.