Best Time to See Monarch Butterflies in Wyoming
August, July and September is the best time to see monarch butterflies in Wyoming. Based on 150 verified iNaturalist observations, here is exactly when monarch butterflies are most active across the year in Wyoming.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
150 verified observations of monarch butterflies in Wyoming, recorded across 8 months of the year on iNaturalist.
When monarch butterflies are recorded in Wyoming
Peak month
August
54 records (36% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 1 | 0.7% |
| May | 1 | 0.7% |
| June | 7 | 4.7% |
| Julypeak | 33 | 22% |
| Augustpeak | 54 | 36% |
| Septemberpeak | 30 | 20% |
| October | 23 | 15.3% |
| November | 1 | 0.7% |
| December | 0 | 0% |
Monarch Butterflies you are most likely to see
| Species | Verified observations |
|---|---|
| Monarch | 150 |
Sightings of monarch butterflies in Wyoming peak in August, when 54 of the year's 150 verified observations are logged — about 36% of the annual total. Activity stays high through August, July and September.
The quietest stretch is January, February and March, when monarch butterflies are hardest to find — no verified records exist for January. If a reliable sighting matters, plan around the peak window rather than the off-season.
The monarch butterflies you are most likely to encounter in Wyoming are Monarch — 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 monarch butterflies in Wyoming
- Bighorn Canyon National Recreation Area — National Recreation Area
- Devils Tower National Monument — National Monument
- Fossil Butte National Monument — National Monument
- Grand Teton National Park — National Park
- Yellowstone National Park — National Park
- California National Historic Trail — National Historic Trail
Plan your monarch butterfly trip in Wyoming
Start with live tours near Bighorn Canyon National Recreation Area, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Bighorn Canyon National Recreation Area
Use the live GetYourGuide widget to compare local departures and activity styles close to the main monarch butterfly viewing area.
Booking.com
Stay nearbyStay near Bighorn Canyon National Recreation Area
Compare hotels, cabins and lodges close to the best monarch butterfly viewing area in Wyoming.
Viator
Broader backupBook a monarch butterfly tour in Wyoming
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
What is the best month to see monarch butterflies in Wyoming?+
August is the single best month, and the broader peak window runs through August, July and September, based on 150 verified iNaturalist observations.
When are monarch butterflies hardest to see in Wyoming?+
January is the quietest month for monarch butterflies in Wyoming, with no verified records on iNaturalist.
Are monarch butterflies active year-round in Wyoming?+
Monarch butterflies are recorded in 8 of 12 months in Wyoming, concentrated around August and July.
More wildlife in Wyoming