Pleasant Hill, IL 62366 Frost Dates
When can you plant in Pleasant Hill, IL?
Around 04/04 is the usual last spring frost, about 219 days away. The first fall frost typically arrives around 11/01, about 208 frost-free days later.
Pleasant Hill sits in USDA Zone 6b (-5 to 0°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 9 weeks of growing season left in Pleasant Hill before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Pleasant Hill's last frost
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pleasant Hill compares
About 208 days separate Pleasant Hill's last and first frost, putting it 15,692 of 40,283 ZIP codes nationally. Within IL, it ranks 86 of 1,548.
Learn more
local microclimates covers what one yard in Pleasant Hill can differ from the 62366 normal. zone vs. frost date covers why Zone 6b and Pleasant Hill's frost date answer different questions.