Best Time to See Mallards in Wyoming
September, June and August is the best time to see mallards in Wyoming. Based on 1,080 verified iNaturalist observations, here is exactly when mallards 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 July 20, 2026.
1,080 verified observations of mallards in Wyoming, recorded across 12 months of the year on iNaturalist.
When mallards are recorded in Wyoming
Peak month
September
179 records (16.6% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 25 | 2.3% |
| February | 47 | 4.4% |
| March | 40 | 3.7% |
| April | 59 | 5.5% |
| May | 142 | 13.1% |
| Junepeak | 167 | 15.5% |
| July | 153 | 14.2% |
| Augustpeak | 163 | 15.1% |
| Septemberpeak | 179 | 16.6% |
| October | 58 | 5.4% |
| November | 37 | 3.4% |
| December | 10 | 0.9% |
Mallards you are most likely to see
| Species | Verified observations |
|---|---|
| Mallard | 1,080 |
Weather to expect, source Open-Meteo
Typical weather in Wyoming
Recent typical conditions by month, so you can plan a trip around both when mallards are active and what the weather is doing. The best months to look for mallards sit around 50 to 82 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" |
| May | 60°F | 40°F | 2.3" |
| Junbest time | 74°F | 52°F | 1.7" |
| Jul | 84°F | 60°F | 0.3" |
| Augbest time | 82°F | 58°F | 0.9" |
| Sepbest time | 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.
Sightings of mallards in Wyoming peak in September, when 179 of the year's 1,080 verified observations are logged — about 16.6% of the annual total. Activity stays high through September, June and August.
The quietest stretch is December, when mallards are hardest to find — December sees just 10 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The mallards you are most likely to encounter in Wyoming are Mallard — 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 mallards 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 mallards in Wyoming?+
September is the single best month, and the broader peak window runs through September, June and August, based on 1,080 verified iNaturalist observations.
When are mallards hardest to see in Wyoming?+
December is the quietest month for mallards in Wyoming, with only 10 verified records.
Are mallards active year-round in Wyoming?+
Mallards are recorded in 12 of 12 months in Wyoming, so they can be seen year-round, with a clear peak in September.
More wildlife in Wyoming