Frost dates · Illinois
When is the first frost in Springfield, Illinois?
In a typical year, Springfield, Illinois’s first frost comes around October 20 and its last around April 14.
One year in ten the first frost comes as early as October 5, and nine years in ten it has arrived by November 1. One year in ten the last frost is over as early as April 1, and nine years in ten it is over by April 29. Springfield, Illinois averages about 111 nights a year at 32°F or colder, with about 187 frost-free days in between in a typical year. It’s frost season here, and the last frost usually comes around April 14. That makes it the 42nd earliest first frost of the 117 cities we track where it freezes most years.
Last updated
A freeze is in the forecast for the next 48 hours.
Springfield gets its last frost in mid-April, and the prairie wastes no time getting on with spring.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Frost dates, early, typical and late years
| Early year (1 in 10) | Typical | Late year (1 in 10) | |
|---|---|---|---|
| First frost | October 5 | October 20 | November 1 |
| Last frost | April 1 | April 14 | April 29 |
A frost date here is a night when the official thermometer reads 32°F or colder. Frost on the ground can show up on clear, calm nights a few degrees milder.
Cities with about the same first frost
- Des Moines, Iowa: first frost around October 20
- Grand Rapids, Michigan: first frost around October 20
- Scranton, Pennsylvania: first frost around October 20
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00093822.