Denver, IN 46926 Frost Dates
When can you plant in Denver, IN?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/21, about 181 frost-free days later.
Denver sits in USDA Zone 6a (-10 to -5°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
About 8 weeks of growing season left in Denver before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Denver compares
At roughly 181 frost-free days, Denver places 24,693 of 40,283 ZIP codes in this dataset. Within IN, it ranks 474 of 927.
Learn more
local microclimates covers what one yard in Denver can differ from the 46926 normal. zone vs. frost date covers why Zone 6a and Denver's frost date answer different questions.