Last frost date in East Peoria, IL
In East Peoria, the last spring frost comes around April 16 in an average year. Wait until May 4 if you want 90% odds of no more frost. The first fall frost usually arrives about October 23, which leaves 189 frost-free days. An early freeze before October 9 happens one year in ten.
- Safe after (10% risk)
- May 4
- Average first frost
- Oct 23
- Frost-free season
- 189 days
- Hard freeze (28°F) ends
- Apr 5
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2248°
- FriOct 2349°
- SatOct 2450°
- SunOct 2552°
- MonOct 2650°
- TueOct 2746°
- WedOct 2847°
Planting calendar for East Peoria
Windows count forward or back from the average frost dates above. Click a crop for dates across Illinois.
Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 2 | Apr 16 | May 4 | Oct 9 | Oct 23 | Nov 3 |
| Hard freeze, 28°F | Mar 19 | Apr 5 | Apr 21 | Oct 21 | Nov 2 | Nov 16 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Peoria Gtr Peoria Airport (USW00014842) sits 7.5 miles from the center of East Peoria at 650 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in East Peoria, IL?
The average last frost date in East Peoria is April 16, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 4.
When is the first frost in East Peoria?
The first frost in fall usually comes around October 23. One year in ten it arrives before October 9.
How long is the growing season in East Peoria?
About 189 days between the average last and first frost.
When should I plant tomatoes in East Peoria?
Plant tomato seedlings outside from April 23 to May 7. Start seeds indoors six to eight weeks earlier.
Nearby in Illinois
- PeoriaApr 16
- PekinApr 16
- NormalApr 25
- BloomingtonApr 25
- GalesburgApr 20
- SpringfieldApr 15
- DecaturApr 14
- East MolineApr 16
- MolineApr 24
- ChampaignApr 15
- Rock IslandApr 24
- UrbanaApr 15