Lawler, IA 52154 Frost Dates
Frost dates for Lawler, IA, ZIP 52154
The last spring frost here typically falls around 05/02, about 247 days from today. The first fall frost typically arrives around 10/05, about 155 frost-free days later.
Lawler 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.
What to do before the first frost
Zone 5a around Lawler 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.
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 Lawler compares
About 155 days separate Lawler's last and first frost, putting it 34,110 of 40,283 ZIP codes nationally. Within IA, it ranks 877 of 1,042.
Learn more
zone vs. frost date explains why Zone 5a and Lawler's frost date answer different questions, and the frost range explains how to read the range around Lawler's dates instead of trusting one.