Best Time to See Mallards in Oregon
April, May and March is the best time to see mallards in Oregon. Based on 13,146 verified iNaturalist observations, here is exactly when mallards are most active across the year in Oregon.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
13,146 verified observations of mallards in Oregon, recorded across 12 months of the year on iNaturalist.
When mallards are recorded in Oregon
Peak month
April
1,775 records (13.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 791 | 6% |
| February | 1,090 | 8.3% |
| Marchpeak | 1,575 | 12% |
| Aprilpeak | 1,775 | 13.5% |
| Maypeak | 1,674 | 12.7% |
| June | 1,174 | 8.9% |
| July | 946 | 7.2% |
| August | 711 | 5.4% |
| September | 866 | 6.6% |
| October | 868 | 6.6% |
| November | 737 | 5.6% |
| December | 939 | 7.1% |
Mallards you are most likely to see
| Species | Verified observations |
|---|---|
| Mallard | 13,146 |
Weather to expect, source Open-Meteo
Typical weather in Oregon
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 25 to 61 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 39°F | 26°F | 2" |
| Feb | 38°F | 22°F | 2.4" |
| Marbest time | 43°F | 25°F | 1.9" |
| Aprbest time | 52°F | 32°F | 2.2" |
| Maybest time | 61°F | 40°F | 2" |
| Jun | 71°F | 48°F | 1.1" |
| Jul | 83°F | 56°F | 0.1" |
| Aug | 81°F | 56°F | 0.4" |
| Sep | 71°F | 47°F | 1.2" |
| Oct | 58°F | 37°F | 1.2" |
| Nov | 45°F | 28°F | 2.3" |
| Dec | 37°F | 25°F | 2.4" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Oregon. Weather varies year to year, so treat these as a guide.
Sightings of mallards in Oregon peak in April, when 1,775 of the year's 13,146 verified observations are logged — about 13.5% of the annual total. Activity stays high through April, May and March.
The quietest stretch is August, November and January, when mallards are hardest to find — August sees just 711 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 Oregon 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 Oregon
- Crater Lake National Park — National Park
- Fort Vancouver National Historic Site — National Historic Site
- Lewis & Clark National Historic Trail — National Historic Trail
- Lewis and Clark National Historical Park — National Historical Park
- Nez Perce National Historical Park — National Historical Park
- Oregon Caves National Monument & Preserve — National Monument & Preserve
Frequently asked questions
What is the best month to see mallards in Oregon?+
April is the single best month, and the broader peak window runs through April, May and March, based on 13,146 verified iNaturalist observations.
When are mallards hardest to see in Oregon?+
August is the quietest month for mallards in Oregon, with only 711 verified records.
Are mallards active year-round in Oregon?+
Mallards are recorded in 12 of 12 months in Oregon, so they can be seen year-round, with a clear peak in April.
More wildlife in Oregon