Best Time to See Wolf Spiders in Colorado
July, June and September is the best time to see wolf spiders in Colorado. Based on 7,417 verified iNaturalist observations, here is exactly when wolf spiders are most active across the year in Colorado.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Wetland Giant Wolf Spider · Matthew Lindsey CC BY
Trochosa sepulchralis · Timothy Lindsey CC BY
Trabeops aurantiacus · Public domain CC0
7,417 verified observations of wolf spiders in Colorado, recorded across 12 months of the year on iNaturalist.
When wolf spiders are recorded in Colorado
Peak month
July
1,316 records (17.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 27 | 0.4% |
| February | 130 | 1.8% |
| March | 435 | 5.9% |
| April | 889 | 12% |
| May | 873 | 11.8% |
| Junepeak | 1,221 | 16.5% |
| Julypeak | 1,316 | 17.7% |
| August | 886 | 11.9% |
| Septemberpeak | 894 | 12.1% |
| October | 501 | 6.8% |
| November | 190 | 2.6% |
| December | 55 | 0.7% |
Wolf Spiders you are most likely to see
| Species | Verified observations |
|---|---|
| Carolina Wolf Spider | 627 |
| McCook's Split Wolf Spider | 296 |
| Tigrosa grandis | 178 |
| Koch's Wolf Spider | 171 |
| Missouri Burrowing Wolf Spider | 142 |
| Rustic Wolf Spider | 121 |
| Forest Wolf Spider | 114 |
| Wetland Giant Wolf Spider | 109 |
Weather to expect, source Open-Meteo
Typical weather in Colorado
Recent typical conditions by month, so you can plan a trip around both when wolf spiders are active and what the weather is doing. The best months to look for wolf spiders sit around 41 to 76 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27°F | 5°F | 0.5" |
| Feb | 27°F | 3°F | 0.9" |
| Mar | 34°F | 9°F | 1.3" |
| Apr | 46°F | 20°F | 1.1" |
| May | 57°F | 31°F | 2.5" |
| Junbest time | 69°F | 42°F | 2.1" |
| Julbest time | 76°F | 49°F | 2.5" |
| Aug | 75°F | 48°F | 1.7" |
| Sepbest time | 69°F | 41°F | 1.1" |
| Oct | 54°F | 27°F | 0.8" |
| Nov | 40°F | 18°F | 0.6" |
| Dec | 30°F | 10°F | 0.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Colorado. Weather varies year to year, so treat these as a guide.
Sightings of wolf spiders in Colorado peak in July, when 1,316 of the year's 7,417 verified observations are logged — about 17.7% of the annual total. Activity stays high through July, June and September.
The quietest stretch is January, when wolf spiders are hardest to find — January sees just 27 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The wolf spiders you are most likely to encounter in Colorado are Carolina Wolf Spider, McCook's Split Wolf Spider and Tigrosa grandis — 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 wolf spiders in Colorado
- Bent's Old Fort National Historic Site — National Historic Site
- Black Canyon Of The Gunnison National Park — National Park
- Colorado National Monument — National Monument
- Curecanti National Recreation Area — National Recreation Area
- Dinosaur National Monument — National Monument
- Great Sand Dunes National Park & Preserve — National Park & Preserve
Frequently asked questions
What is the best month to see wolf spiders in Colorado?+
July is the single best month, and the broader peak window runs through July, June and September, based on 7,417 verified iNaturalist observations.
When are wolf spiders hardest to see in Colorado?+
January is the quietest month for wolf spiders in Colorado, with only 27 verified records.
Are wolf spiders active year-round in Colorado?+
Wolf spiders are recorded in 12 of 12 months in Colorado, so they can be seen year-round, with a clear peak in July.
More wildlife in Colorado