Best Time to See Rattlesnakes in North Dakota
June, July and August is the best time to see rattlesnakes in North Dakota. Based on 98 verified iNaturalist observations, here is exactly when rattlesnakes 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 21, 2026.
Eastern Diamondback Rattlesnake · Scott Allen Davis CC BY
Panamint Rattlesnake · Matt Berger CC BY
Red Diamond Rattlesnake · Amy Huie CC BY
98 verified observations of rattlesnakes in North Dakota, recorded across 5 months of the year on iNaturalist.
When rattlesnakes are recorded in North Dakota
Peak month
June
38 records (38.8% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| May | 10 | 10.2% |
| Junepeak | 38 | 38.8% |
| Julypeak | 19 | 19.4% |
| Augustpeak | 17 | 17.3% |
| September | 14 | 14.3% |
| October | 0 | 0% |
| November | 0 | 0% |
| December | 0 | 0% |
Rattlesnakes you are most likely to see
| Species | Verified observations |
|---|---|
| Prairie Rattlesnake | 98 |
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 rattlesnakes are active and what the weather is doing. The best months to look for rattlesnakes sit around 57 to 80 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" |
| Julbest time | 80°F | 61°F | 2" |
| Augbest time | 79°F | 60°F | 2" |
| Sep | 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 rattlesnakes in North Dakota peak in June, when 38 of the year's 98 verified observations are logged — about 38.8% of the annual total. Activity stays high through June, July and August.
The quietest stretch is January, February and March, when rattlesnakes 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 rattlesnakes you are most likely to encounter in North Dakota are Prairie Rattlesnake — 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.
Frequently asked questions
What is the best month to see rattlesnakes in North Dakota?+
June is the single best month, and the broader peak window runs through June, July and August, based on 98 verified iNaturalist observations.
When are rattlesnakes hardest to see in North Dakota?+
January is the quietest month for rattlesnakes in North Dakota, with no verified records on iNaturalist.
Are rattlesnakes active year-round in North Dakota?+
Rattlesnakes are recorded in 5 of 12 months in North Dakota, concentrated around June and July.
More wildlife in North Dakota