Best Time to See Black Widows in Michigan
June, July and August is the best time to see black widows in Michigan. Based on 131 verified iNaturalist observations, here is exactly when black widows are most active across the year in Michigan.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Northern Black Widow · Joseph McPhail CC BY
Western Black Widow · Rebecca Ray CC BY
Western Black Widow · Michael Eisen CC BY
131 verified observations of black widows in Michigan, recorded across 8 months of the year on iNaturalist.
When black widows are recorded in Michigan
Peak month
June
54 records (41.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| May | 15 | 11.5% |
| Junepeak | 54 | 41.2% |
| Julypeak | 16 | 12.2% |
| Augustpeak | 16 | 12.2% |
| September | 15 | 11.5% |
| October | 12 | 9.2% |
| November | 2 | 1.5% |
| December | 1 | 0.8% |
Black Widows you are most likely to see
| Species | Verified observations |
|---|---|
| Northern Black Widow | 117 |
| Western Black Widow | 4 |
| Southern Black Widow | 2 |
| Brown Widow | 2 |
Weather to expect, source Open-Meteo
Typical weather in Michigan
Recent typical conditions by month, so you can plan a trip around both when black widows are active and what the weather is doing. The best months to look for black widows sit around 55 to 80 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27°F | 16°F | 2.3" |
| Feb | 28°F | 13°F | 2.4" |
| Mar | 40°F | 23°F | 3" |
| Apr | 51°F | 33°F | 2.8" |
| May | 65°F | 45°F | 3.7" |
| Junbest time | 76°F | 55°F | 2.8" |
| Julbest time | 80°F | 61°F | 3.6" |
| Augbest time | 77°F | 59°F | 3.3" |
| Sep | 69°F | 53°F | 3.4" |
| Oct | 55°F | 42°F | 4.7" |
| Nov | 42°F | 30°F | 2.5" |
| Dec | 34°F | 23°F | 2.7" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Michigan. Weather varies year to year, so treat these as a guide.
Sightings of black widows in Michigan peak in June, when 54 of the year's 131 verified observations are logged — about 41.2% of the annual total. Activity stays high through June, July and August.
The quietest stretch is January, February and March, when black widows are hardest to find — no verified records exist for January. If a reliable sighting matters, plan around the peak window rather than the off-season.
The black widows you are most likely to encounter in Michigan are Northern Black Widow, Western Black Widow and Southern Black Widow — 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 black widows in Michigan
- Isle Royale National Park — National Park
- North Country National Scenic Trail — National Scenic Trail
- Pictured Rocks National Lakeshore — National Lakeshore
- River Raisin National Battlefield Park — National Battlefield Park
- Sleeping Bear Dunes National Lakeshore — National Lakeshore
- Keweenaw National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see black widows in Michigan?+
June is the single best month, and the broader peak window runs through June, July and August, based on 131 verified iNaturalist observations.
When are black widows hardest to see in Michigan?+
January is the quietest month for black widows in Michigan, with no verified records on iNaturalist.
Are black widows active year-round in Michigan?+
Black widows are recorded in 8 of 12 months in Michigan, concentrated around June and July.
More wildlife in Michigan