Best Time to See Rabbits in Illinois
April, May and June is the best time to see rabbits in Illinois. Based on 8,779 verified iNaturalist observations, here is exactly when rabbits 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 June 28, 2026.
Eastern Cottontail · L.J. Lamera CC BY
Eastern Cottontail · bg1159 CC BY
Eastern Cottontail · Tyler Bishop CC BY
8,779 verified observations of rabbits in Illinois, recorded across 12 months of the year on iNaturalist.
When rabbits are recorded in Illinois
Peak month
April
1,624 records (18.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 241 | 2.7% |
| February | 236 | 2.7% |
| March | 522 | 5.9% |
| Aprilpeak | 1,624 | 18.5% |
| Maypeak | 1,584 | 18% |
| Junepeak | 1,508 | 17.2% |
| July | 1,209 | 13.8% |
| August | 691 | 7.9% |
| September | 456 | 5.2% |
| October | 307 | 3.5% |
| November | 173 | 2% |
| December | 228 | 2.6% |
Rabbits you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Cottontail | 8,670 |
| European Rabbit | 15 |
| Swamp Rabbit | 11 |
Weather to expect, source Open-Meteo
Typical weather in Illinois
Recent typical conditions by month, so you can plan a trip around both when rabbits are active and what the weather is doing. The best months to look for rabbits 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 rabbits in Illinois:
Sightings of rabbits in Illinois peak in April, when 1,624 of the year's 8,779 verified observations are logged — about 18.5% of the annual total. Activity stays high through April, May and June.
The quietest stretch is November, December and February, when rabbits are hardest to find — November sees just 173 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The rabbits you are most likely to encounter in Illinois are Eastern Cottontail, European Rabbit and Swamp Rabbit — 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 rabbits 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 rabbits in Illinois?+
April is the single best month, and the broader peak window runs through April, May and June, based on 8,779 verified iNaturalist observations.
When are rabbits hardest to see in Illinois?+
November is the quietest month for rabbits in Illinois, with only 173 verified records.
Are rabbits active year-round in Illinois?+
Rabbits 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 rabbits
More wildlife in Illinois