Waveland, IN 47989 Frost Dates
Frost dates for Waveland, IN, ZIP 47989
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/12, about 164 frost-free days later.
Zone 5b (-15 to -10°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 Waveland, not a forecast for this year.
What to do before the first frost
Zone 5b around Waveland has about 6 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.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Waveland compares
At roughly 164 frost-free days, Waveland places 31,137 of 40,283 ZIP codes in this dataset. Within IN, it ranks 886 of 927.
Learn more
zone vs. frost date explains why Zone 5b and Waveland's frost date answer different questions, and the frost range explains how to read the range around Waveland's dates instead of trusting one.