Ramsey, MN 55303 Frost Dates
Frost dates for Ramsey, MN, ZIP 55303
Around 05/05 is the usual last spring frost, about 250 days away. The first fall frost typically arrives around 10/02, about 148 frost-free days later.
Zone 4b (-25 to -20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Ramsey, not a forecast for this year.
What to do before the first frost
Zone 4b around Ramsey has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Ramsey's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ramsey compares
About 148 days separate Ramsey's last and first frost, putting it 35,637 of 40,283 ZIP codes nationally. Within MN, it ranks 579 of 943.
Learn more
the frost range explains how to read the range around Ramsey's dates instead of trusting one, and local microclimates explains what one yard in Ramsey can differ from the 55303 normal.