Geneva, IN 46740 Frost Dates
Frost dates for Geneva, IN, ZIP 46740
Typically, the last spring freeze lands around 04/28, roughly 243 days out. The first fall frost typically arrives around 10/15, about 171 frost-free days later.
Zone 6a (-10 to -5°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 Geneva, not a forecast for this year.
What to do before the first frost
Zone 6a around Geneva has about 7 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 Geneva's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 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 Geneva compares
At roughly 171 frost-free days, Geneva places 28,712 of 40,283 ZIP codes in this dataset. Within IN, it ranks 769 of 927.
Learn more
local microclimates explains what one yard in Geneva can differ from the 46740 normal, and zone vs. frost date explains why Zone 6a and Geneva's frost date answer different questions.