Quasqueton, IA 52326 Frost Dates
When can you plant in Quasqueton, IA?
Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/07, about 159 frost-free days later.
The USDA Plant Hardiness Zone Map puts Quasqueton in Zone 5a (-20 to -15°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 6 weeks of growing season left in Quasqueton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Quasqueton compares
About 159 days separate Quasqueton's last and first frost, putting it 32,722 of 40,283 ZIP codes nationally. Within IA, it ranks 792 of 1,042.
Learn more
local microclimates covers what one yard in Quasqueton can differ from the 52326 normal. zone vs. frost date covers why Zone 5a and Quasqueton's frost date answer different questions.