Best Time to See Black Widows in Maryland
June, May and July is the best time to see black widows in Maryland. Based on 962 verified iNaturalist observations, here is exactly when black widows are most active across the year in Maryland.
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
962 verified observations of black widows in Maryland, recorded across 12 months of the year on iNaturalist.
When black widows are recorded in Maryland
Peak month
June
187 records (19.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 6 | 0.6% |
| February | 4 | 0.4% |
| March | 27 | 2.8% |
| April | 63 | 6.5% |
| Maypeak | 157 | 16.3% |
| Junepeak | 187 | 19.4% |
| Julypeak | 124 | 12.9% |
| August | 104 | 10.8% |
| September | 123 | 12.8% |
| October | 116 | 12.1% |
| November | 36 | 3.7% |
| December | 15 | 1.6% |
Black Widows you are most likely to see
| Species | Verified observations |
|---|---|
| Northern Black Widow | 482 |
| Southern Black Widow | 369 |
| Brown Widow | 2 |
| Western Black Widow | 1 |
Weather to expect, source Open-Meteo
Typical weather in Maryland
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 54 to 89 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 44°F | 30°F | 3.3" |
| Feb | 48°F | 31°F | 3.9" |
| Mar | 56°F | 37°F | 3.9" |
| Apr | 66°F | 45°F | 4.7" |
| Maybest time | 73°F | 54°F | 4.7" |
| Junbest time | 83°F | 64°F | 5.4" |
| Julbest time | 89°F | 70°F | 7.3" |
| Aug | 85°F | 69°F | 7.6" |
| Sep | 79°F | 62°F | 4.9" |
| Oct | 69°F | 52°F | 4.9" |
| Nov | 56°F | 40°F | 3.2" |
| Dec | 49°F | 34°F | 4.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Maryland. Weather varies year to year, so treat these as a guide.
Sightings of black widows in Maryland peak in June, when 187 of the year's 962 verified observations are logged — about 19.4% of the annual total. Activity stays high through June, May and July.
The quietest stretch is February and January, when black widows are hardest to find — February sees just 4 records. 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 Maryland are Northern Black Widow, Southern Black Widow and Brown 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 Maryland
- Antietam National Battlefield — National Battlefield
- Appalachian National Scenic Trail — National Scenic Trail
- Assateague Island National Seashore — National Seashore
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake & Ohio Canal National Historical Park — National Historical Park
- Chesapeake Bay
Frequently asked questions
What is the best month to see black widows in Maryland?+
June is the single best month, and the broader peak window runs through June, May and July, based on 962 verified iNaturalist observations.
When are black widows hardest to see in Maryland?+
February is the quietest month for black widows in Maryland, with only 4 verified records.
Are black widows active year-round in Maryland?+
Black widows are recorded in 12 of 12 months in Maryland, so they can be seen year-round, with a clear peak in June.
More wildlife in Maryland