Best Time to See Snakes in Oregon
May, June and April is the best time to see snakes in Oregon. Based on 20,750 verified iNaturalist observations, here is exactly when snakes 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 June 30, 2026.
California Mountain Kingsnake · Ken-ichi Ueda CC BY
Red-spotted Garter Snake · Matt D'Agrosa CC BY
Northwestern Ringneck Snake · Matt D'Agrosa CC BY
20,750 verified observations of snakes in Oregon, recorded across 12 months of the year on iNaturalist.
When snakes are recorded in Oregon
Peak month
May
4,410 records (21.3% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 230 | 1.1% |
| February | 381 | 1.8% |
| March | 1,533 | 7.4% |
| Aprilpeak | 2,815 | 13.6% |
| Maypeak | 4,410 | 21.3% |
| Junepeak | 3,765 | 18.1% |
| July | 2,453 | 11.8% |
| August | 1,814 | 8.7% |
| September | 1,683 | 8.1% |
| October | 1,242 | 6% |
| November | 305 | 1.5% |
| December | 119 | 0.6% |
Snakes you are most likely to see
| Species | Verified observations |
|---|---|
| Northwestern Garter Snake | 6,130 |
| Common Garter Snake | 5,595 |
| Gopher Snake | 3,499 |
| Western Rattlesnake | 1,178 |
| Northern Rubber Boa | 1,114 |
| North American Racer | 1,029 |
| Western Terrestrial Garter Snake | 733 |
| Ring-necked Snake | 452 |
Weather to expect, source Open-Meteo
Typical weather in Oregon
Recent typical conditions by month, so you can plan a trip around both when snakes are active and what the weather is doing. The best months to look for snakes sit around 32 to 71 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" |
| Aprbest time | 52°F | 32°F | 2.2" |
| Maybest time | 61°F | 40°F | 2" |
| Junbest time | 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.
More on snakes in Oregon:
Sightings of snakes in Oregon peak in May, when 4,410 of the year's 20,750 verified observations are logged — about 21.3% of the annual total. Activity stays high through May, June and April.
The quietest stretch is December, when snakes are hardest to find — December sees just 119 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The snakes you are most likely to encounter in Oregon are Northwestern Garter Snake, Common Garter Snake and Gopher Snake — 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 snakes 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
Gear to see them
Frequently asked questions
What is the best month to see snakes in Oregon?+
May is the single best month, and the broader peak window runs through May, June and April, based on 20,750 verified iNaturalist observations.
When are snakes hardest to see in Oregon?+
December is the quietest month for snakes in Oregon, with only 119 verified records.
Are snakes active year-round in Oregon?+
Snakes are recorded in 12 of 12 months in Oregon, so they can be seen year-round, with a clear peak in May.