Best Time to See Bighorn Sheep in Wyoming
May, June and July is the best time to see bighorn sheep in Wyoming. Based on 1,362 verified iNaturalist observations, here is exactly when bighorn sheep 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.
Bighorn Sheep · Greg Holland CC BY-ND
Bighorn Sheep · Callisto CC BY
Bighorn Sheep · Andrew McKinlay CC BY
1,362 verified observations of bighorn sheep in Wyoming, recorded across 12 months of the year on iNaturalist.
When bighorn sheep are recorded in Wyoming
Peak month
May
275 records (20.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 85 | 6.2% |
| February | 84 | 6.2% |
| March | 83 | 6.1% |
| April | 84 | 6.2% |
| Maypeak | 275 | 20.2% |
| Junepeak | 213 | 15.6% |
| Julypeak | 142 | 10.4% |
| August | 113 | 8.3% |
| September | 132 | 9.7% |
| October | 54 | 4% |
| November | 38 | 2.8% |
| December | 59 | 4.3% |
Bighorn Sheep you are most likely to see
| Species | Verified observations |
|---|---|
| Bighorn Sheep | 1,362 |
Weather to expect, source Open-Meteo
Typical weather in Wyoming
Recent typical conditions by month, so you can plan a trip around both when bighorn sheep are active and what the weather is doing. The best months to look for bighorn sheep sit around 40 to 84 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27°F | 15°F | 0.9" |
| Feb | 25°F | 9°F | 0.7" |
| Mar | 35°F | 19°F | 1.6" |
| Apr | 45°F | 26°F | 1.9" |
| Maybest time | 60°F | 40°F | 2.3" |
| Junbest time | 74°F | 52°F | 1.7" |
| Julbest time | 84°F | 60°F | 0.3" |
| Aug | 82°F | 58°F | 0.9" |
| Sep | 72°F | 50°F | 0.8" |
| Oct | 51°F | 33°F | 1.9" |
| Nov | 40°F | 24°F | 0.7" |
| Dec | 30°F | 17°F | 0.5" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Wyoming. Weather varies year to year, so treat these as a guide.
More on bighorn sheep in Wyoming:
Sightings of bighorn sheep in Wyoming peak in May, when 275 of the year's 1,362 verified observations are logged — about 20.2% of the annual total. Activity stays high through May, June and July.
The quietest stretch is November and October, when bighorn sheep are hardest to find — November sees just 38 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The bighorn sheep you are most likely to encounter in Wyoming are Bighorn Sheep — 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 bighorn sheep 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
Frequently asked questions
What is the best month to see bighorn sheep in Wyoming?+
May is the single best month, and the broader peak window runs through May, June and July, based on 1,362 verified iNaturalist observations.
When are bighorn sheep hardest to see in Wyoming?+
November is the quietest month for bighorn sheep in Wyoming, with only 38 verified records.
Are bighorn sheep active year-round in Wyoming?+
Bighorn sheep are recorded in 12 of 12 months in Wyoming, so they can be seen year-round, with a clear peak in May.
More places to see bighorn sheep
More wildlife in Wyoming