Monarch Butterflies in Nebraska in September
Yes, September is one of the best months to see monarch butterflies in Nebraska. It is the 2nd busiest month of the year, with 681 of the 2,465 sightings logged across the year (27.6%), 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.
Peak month for monarch butterflies in Nebraska
27.6%
of yearly sightings
681
records in September
#2
busiest month of 12
2,465
verified records a year
August 29.7%, September 27.6%, October 8.2%. Busiest month is August at 29.7%.
2,465 verified observations of monarch butterflies in Nebraska, recorded across 10 months of the year on iNaturalist.
When monarch butterflies are recorded in Nebraska
Peak month
August
731 records (29.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1 | 0% |
| February | 0 | 0% |
| March | 1 | 0% |
| April | 6 | 0.2% |
| May | 112 | 4.5% |
| June | 298 | 12.1% |
| Julypeak | 431 | 17.5% |
| Augustpeak | 731 | 29.7% |
| Septemberpeak | 681 | 27.6% |
| October | 201 | 8.2% |
| November | 3 | 0.1% |
| December | 0 | 0% |
Monarch Butterflies you are most likely to see
| Species | Verified observations |
|---|---|
| Monarch | 2,465 |
In Nebraska, September carries 27.6% of the year's monarch butterflies sightings, about 19.3 points above an even month-to-month split. That makes it the 2nd busiest of the twelve months, out of 10 months with recorded activity.
Activity is easing off from August (29.7%) into September, and it heads toward October (8.2%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.
The monarch butterflies most often recorded in Nebraska are Monarch. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.
Which monarch butterflies you are most likely to see
- Monarch2,465 records
Plan your monarch butterfly trip in Nebraska
Start with live tours near Agate Fossil Beds National Monument, 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 Agate Fossil Beds National Monument
Use the live GetYourGuide widget to compare local departures and activity styles close to the main monarch butterfly viewing area.
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Frequently asked questions
Can you see monarch butterflies in Nebraska in September?+
Yes. September accounts for 681 of the 2,465 verified monarch butterflies sightings logged in Nebraska across the year, which is 27.6% of the annual total.
Is September a good time to see monarch butterflies in Nebraska?+
September is one of the best months. It ranks 2nd of the year and sits inside the peak window of August, September and July.
What month is best for monarch butterflies in Nebraska?+
August is the single busiest month, with the broader peak running through August, September and July, based on 2,465 verified observations.
Which monarch butterflies are you most likely to see in Nebraska?+
The most-recorded species in Nebraska are Monarch, based on all-time iNaturalist counts.
See monarch butterflies in Nebraska in other months
More wildlife in Nebraska