Best Time to See Great Blue Herons in North Dakota
September, June and August is the best time to see great blue herons in North Dakota. Based on 126 verified iNaturalist observations, here is exactly when great blue herons are most active across the year in North Dakota.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
Great Blue Heron · Esben Kjaer CC BY
Great Blue Heron · Marilynn Miller CC BY
Great Blue Heron · Public domain CC0
126 verified observations of great blue herons in North Dakota, recorded across 7 months of the year on iNaturalist.
When great blue herons are recorded in North Dakota
Peak month
September
32 records (25.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 19 | 15.1% |
| May | 14 | 11.1% |
| Junepeak | 21 | 16.7% |
| July | 15 | 11.9% |
| Augustpeak | 21 | 16.7% |
| Septemberpeak | 32 | 25.4% |
| October | 4 | 3.2% |
| November | 0 | 0% |
| December | 0 | 0% |
Great Blue Herons you are most likely to see
| Species | Verified observations |
|---|---|
| Great Blue Heron | 126 |
Weather to expect, source Open-Meteo
Typical weather in North Dakota
Recent typical conditions by month, so you can plan a trip around both when great blue herons are active and what the weather is doing. The best months to look for great blue herons sit around 52 to 79 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 21°F | 6°F | 0.7" |
| Feb | 18°F | 1°F | 0.7" |
| Mar | 34°F | 17°F | 0.7" |
| Apr | 46°F | 28°F | 2.1" |
| May | 64°F | 43°F | 2.3" |
| Junbest time | 77°F | 57°F | 2.8" |
| Jul | 80°F | 61°F | 2" |
| Augbest time | 79°F | 60°F | 2" |
| Sepbest time | 71°F | 52°F | 2.3" |
| Oct | 51°F | 36°F | 2.4" |
| Nov | 37°F | 23°F | 1" |
| Dec | 25°F | 11°F | 1.2" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for North Dakota. Weather varies year to year, so treat these as a guide.
Sightings of great blue herons in North Dakota peak in September, when 32 of the year's 126 verified observations are logged — about 25.4% of the annual total. Activity stays high through September, June and August.
The quietest stretch is January, February and March, when great blue herons 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 great blue herons you are most likely to encounter in North Dakota are Great Blue Heron — 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 great blue herons in North Dakota
- Knife River Indian Villages National Historic Site — National Historic Site
- Lewis & Clark National Historic Trail — National Historic Trail
- North Country National Scenic Trail — National Scenic Trail
- Theodore Roosevelt National Park — National Park
- Fort Union Trading Post National Historic Site — National Historic Site
- Arrowwood NWR (general)
Frequently asked questions
What is the best month to see great blue herons in North Dakota?+
September is the single best month, and the broader peak window runs through September, June and August, based on 126 verified iNaturalist observations.
When are great blue herons hardest to see in North Dakota?+
January is the quietest month for great blue herons in North Dakota, with no verified records on iNaturalist.
Are great blue herons active year-round in North Dakota?+
Great blue herons are recorded in 7 of 12 months in North Dakota, concentrated around September and June.
More wildlife in North Dakota