Evansville, WY 82609 Frost Dates
When can you plant in Evansville, WY?
Typically, the last spring freeze lands around 05/12, roughly 257 days out. The first fall frost typically arrives around 10/01, about 143 frost-free days later.
Evansville 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
About 5 weeks of growing season left in Evansville 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
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/28 and you're betting against frost in roughly 9 years out of 10. 05/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Evansville compares
Evansville's growing season runs about 143 days, ranking 36,529 of 40,283 US ZIP codes measured here, longest to shortest. Within WY, it ranks 15 of 192.
Learn more
local microclimates covers what one yard in Evansville can differ from the 82609 normal. zone vs. frost date covers why Zone 5a and Evansville's frost date answer different questions.