Monarch Butterflies in Wyoming in October
Yes, October is a good month to see monarch butterflies in Wyoming. It is the 4th busiest month of the year, with 23 of the 150 sightings logged across the year (15.3%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Good month for monarch butterflies in Wyoming
15.3%
of yearly sightings
23
records in October
#4
busiest month of 12
150
verified records a year
September 20%, October 15.3%, November 0.7%. Busiest month is August at 36%.
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 |
In Wyoming, October carries 15.3% of the year's monarch butterflies sightings, about 7 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 8 months with recorded activity.
Activity is easing off from September (20%) into October, and it heads toward November (0.7%) after. The busiest month is August (36%), so if timing is flexible, that window is the safer bet.
The monarch butterflies most often recorded in Wyoming are Monarch. Those counts are annual totals rather than a October split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in October itself.
Which monarch butterflies you are most likely to see
- Monarch150 records
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.
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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.
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Stay nearbyStay near Bighorn Canyon National Recreation Area
Compare hotels, cabins and lodges close to the best monarch butterfly viewing area in Wyoming.
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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
Can you see monarch butterflies in Wyoming in October?+
Yes. October accounts for 23 of the 150 verified monarch butterflies sightings logged in Wyoming across the year, which is 15.3% of the annual total.
Is October a good time to see monarch butterflies in Wyoming?+
October is the 4th busiest month. It is workable, though August and July is the stronger window for a reliable sighting.
What month is best for monarch butterflies in Wyoming?+
August is the single busiest month, with the broader peak running through August, July and September, based on 150 verified observations.
Which monarch butterflies are you most likely to see in Wyoming?+
The most-recorded species in Wyoming are Monarch, based on all-time iNaturalist counts.
See monarch butterflies in Wyoming in other months
More wildlife in Wyoming