Frost dates · Illinois and Iowa
When is the first frost in Quad Cities?
In a typical year, Quad Cities’s first frost comes around October 18 and its last around April 24.
One year in ten the first frost comes as early as October 4, and nine years in ten it has arrived by October 28. One year in ten the last frost is over as early as April 9, and nine years in ten it is over by May 9. Quad Cities averages about 129 nights a year at 32°F or colder, with about 176 frost-free days in between in a typical year. It’s frost season here, and the last frost usually comes around April 24. That makes it the 36th 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.
The Quad Cities get frost from mid-October to late April: four cities, one long, cold opinion.
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 4 | October 18 | October 28 |
| Last frost | April 9 | April 24 | May 9 |
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
- Minneapolis, Minnesota: first frost around October 18
- Rockford, Illinois: first frost around October 17
- South Bend, Indiana: first frost around October 19
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00014923.