Best Time to See Raccoons in Illinois
April, May and June is the best time to see raccoons in Illinois. Based on 4,078 verified iNaturalist observations, here is exactly when raccoons are most active across the year in Illinois.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.
Common Raccoon · Mike B CC BY-SA
Common Raccoon · Sam Joyce CC BY
Common Raccoon · Amanda Janusz CC BY
4,078 verified observations of raccoons in Illinois, recorded across 12 months of the year on iNaturalist.
When raccoons are recorded in Illinois
Peak month
April
808 records (19.8% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 161 | 3.9% |
| February | 191 | 4.7% |
| March | 323 | 7.9% |
| Aprilpeak | 808 | 19.8% |
| Maypeak | 698 | 17.1% |
| Junepeak | 526 | 12.9% |
| July | 293 | 7.2% |
| August | 210 | 5.1% |
| September | 322 | 7.9% |
| October | 269 | 6.6% |
| November | 167 | 4.1% |
| December | 110 | 2.7% |
Raccoons you are most likely to see
| Species | Verified observations |
|---|---|
| Common Raccoon | 4,078 |
Weather to expect, source Open-Meteo
Typical weather in Illinois
Recent typical conditions by month, so you can plan a trip around both when raccoons are active and what the weather is doing. The best months to look for raccoons sit around 43 to 83 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 38°F | 23°F | 3" |
| Feb | 40°F | 22°F | 3.1" |
| Mar | 53°F | 34°F | 4.8" |
| Aprbest time | 63°F | 43°F | 4.1" |
| Maybest time | 73°F | 54°F | 4.6" |
| Junbest time | 83°F | 64°F | 3.5" |
| Jul | 85°F | 68°F | 4.3" |
| Aug | 83°F | 66°F | 3.9" |
| Sep | 79°F | 61°F | 3" |
| Oct | 65°F | 48°F | 4.9" |
| Nov | 52°F | 35°F | 1.8" |
| Dec | 45°F | 29°F | 2.3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Illinois. Weather varies year to year, so treat these as a guide.
More on raccoons in Illinois:
Sightings of raccoons in Illinois peak in April, when 808 of the year's 4,078 verified observations are logged — about 19.8% of the annual total. Activity stays high through April, May and June.
The quietest stretch is December and January, when raccoons are hardest to find — December sees just 110 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The raccoons you are most likely to encounter in Illinois are Common Raccoon — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see raccoons in Illinois
- Lewis & Clark National Historic Trail — National Historic Trail
- Lincoln Home National Historic Site — National Historic Site
- Emmett Till and Mamie Till-Mobley National Monument — National Monument
- Mormon Pioneer National Historic Trail — National Historic Trail
- New Philadelphia National Historic Site — National Historic Site
- Pullman National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see raccoons in Illinois?+
April is the single best month, and the broader peak window runs through April, May and June, based on 4,078 verified iNaturalist observations.
When are raccoons hardest to see in Illinois?+
December is the quietest month for raccoons in Illinois, with only 110 verified records.
Are raccoons active year-round in Illinois?+
Raccoons are recorded in 12 of 12 months in Illinois, so they can be seen year-round, with a clear peak in April.
More places to see raccoons
More wildlife in Illinois