Bagley, IA 50026 Frost Dates
Bagley, IA: when does the frost end?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. Fall's first freeze usually shows up around 10/09, roughly 164 days after the last spring frost.
Bagley 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 6 weeks until Bagley'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
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Bagley against the rest of the dataset
Bagley's growing season runs about 164 days, ranking 31,206 of 40,283 US ZIP codes measured here, longest to shortest. Within IA, it ranks 631 of 1,042.
Learn more
Before leaning on 50026's figures: the frost range explains how to read the range around Bagley's dates instead of trusting one, while local microclimates explains what one yard in Bagley can differ from the 50026 normal.