Last and first frost dates in Peoria

When is the last frost in Peoria?

The last frost in Peoria usually comes around 19 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 29 March, while corn waits until 26 April. The first autumn frost follows around 31 October, about 195 days later: harvest or cover frost-tender crops before then.

When to sow and plant

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

When the soil warms up in Peoria

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 13 days before the last spring frost and 15 °C 13 days after it.

Frost dates near Peoria

Of the nearest cities on our list, the last spring frost ends earliest in Springfield (17 April) and latest in Rockford (26 April).

Seeds, seedlings and markets in Peoria

Within 15 km of Peoria OpenStreetMap lists 3 garden centres, 1 market and 1 farm shop (collected 28 October 2026). The nearest garden centre to the city centre is Bottom Line Solutions, 12 km away.

• Bottom Line Solutions — garden centre
  Cooper Road 25356, 61550 Morton · 12 km · enduraplas.com
• Peoria Farmer's Market at Metro Centre — market
  Mon–Sat 08:00–12:00; Jan, Feb, Mar, Apr closed · 6 km · shopmetrocentre.com
• Ron's Produce — farm shop
  North Radnor Road 10213, Peoria · 15 km

• Where to buy seeds and seedlings in Peoria
• Selling your own harvest in the United States

Places: © OpenStreetMap contributors, ODbL.

Weather in Peoria by month

Average weather in Peoria over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: May–September (23–29.3 °C). Nights average below 0 °C in January (-6.7 °C), February (-5.1 °C) and December (-3.2 °C). About 952 mm of rain falls in a year, on 120 days; May is the wettest month (123 mm) and January the driest (55 mm).

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).