Best Time to See Ladybugs in Oregon
May, June and July is the best time to see ladybugs in Oregon. Based on 16,021 verified iNaturalist observations, here is exactly when ladybugs 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 2, 2026.
Twenty-spotted Lady Beetle · Casey H. Richart CC BY
Variegated Lady Beetle · David Anderson CC BY
Oregon Lady Beetle · David Anderson CC BY
16,021 verified observations of ladybugs in Oregon, recorded across 12 months of the year on iNaturalist.
When ladybugs are recorded in Oregon
Peak month
May
3,657 records (22.8% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 313 | 2% |
| February | 259 | 1.6% |
| March | 805 | 5% |
| April | 1,815 | 11.3% |
| Maypeak | 3,657 | 22.8% |
| Junepeak | 3,545 | 22.1% |
| Julypeak | 2,178 | 13.6% |
| August | 1,239 | 7.7% |
| September | 651 | 4.1% |
| October | 838 | 5.2% |
| November | 506 | 3.2% |
| December | 215 | 1.3% |
Ladybugs you are most likely to see
| Species | Verified observations |
|---|---|
| Seven-spotted Lady Beetle | 4,277 |
| Asian Lady Beetle | 4,269 |
| Western Polished Lady Beetle | 1,634 |
| Convergent Lady Beetle | 1,460 |
| Twenty-spotted Lady Beetle | 696 |
| Painted Lady Beetle | 356 |
| Flying Saucer Lady Beetle | 350 |
| Two-spotted Lady Beetle | 234 |
Weather to expect, source Open-Meteo
Typical weather in Oregon
Recent typical conditions by month, so you can plan a trip around both when ladybugs are active and what the weather is doing. The best months to look for ladybugs sit around 40 to 83 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" |
| Mar | 43°F | 25°F | 1.9" |
| Apr | 52°F | 32°F | 2.2" |
| Maybest time | 61°F | 40°F | 2" |
| Junbest time | 71°F | 48°F | 1.1" |
| Julbest time | 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.
More on ladybugs in Oregon:
Sightings of ladybugs in Oregon peak in May, when 3,657 of the year's 16,021 verified observations are logged — about 22.8% of the annual total. Activity stays high through May, June and July.
The quietest stretch is December, February and January, when ladybugs are hardest to find — December sees just 215 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The ladybugs you are most likely to encounter in Oregon are Seven-spotted Lady Beetle, Asian Lady Beetle and Western Polished Lady Beetle — 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 ladybugs 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 ladybugs in Oregon?+
May is the single best month, and the broader peak window runs through May, June and July, based on 16,021 verified iNaturalist observations.
When are ladybugs hardest to see in Oregon?+
December is the quietest month for ladybugs in Oregon, with only 215 verified records.
Are ladybugs active year-round in Oregon?+
Ladybugs are recorded in 12 of 12 months in Oregon, so they can be seen year-round, with a clear peak in May.
More places to see ladybugs
More wildlife in Oregon