Best Time to See Black Widows in New Hampshire
June, August and October is the best time to see black widows in New Hampshire. Based on 9 verified iNaturalist observations, here is exactly when black widows are most active across the year in New Hampshire.
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
9 verified observations of black widows in New Hampshire, recorded across 5 months of the year on iNaturalist.
When black widows are recorded in New Hampshire
Peak month
June
3 records (33.3% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 1 | 11.1% |
| May | 0 | 0% |
| Junepeak | 3 | 33.3% |
| July | 0 | 0% |
| Augustpeak | 2 | 22.2% |
| September | 0 | 0% |
| Octoberpeak | 2 | 22.2% |
| November | 1 | 11.1% |
| December | 0 | 0% |
Black Widows you are most likely to see
| Species | Verified observations |
|---|---|
| Northern Black Widow | 2 |
| Western Black Widow | 1 |
| Brown Widow | 1 |
Weather to expect, source Open-Meteo
Typical weather in New Hampshire
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 39 to 70 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 24°F | 8°F | 4.1" |
| Feb | 25°F | 8°F | 3.6" |
| Mar | 34°F | 18°F | 3.3" |
| Apr | 45°F | 29°F | 5.2" |
| May | 58°F | 40°F | 4.1" |
| Junbest time | 67°F | 50°F | 4.8" |
| Jul | 72°F | 57°F | 7.1" |
| Augbest time | 70°F | 56°F | 4.5" |
| Sep | 63°F | 48°F | 4.5" |
| Octbest time | 53°F | 39°F | 5.6" |
| Nov | 38°F | 24°F | 4.2" |
| Dec | 30°F | 17°F | 6" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for New Hampshire. Weather varies year to year, so treat these as a guide.
Sightings of black widows in New Hampshire peak in June, when 3 of the year's 9 verified observations are logged — about 33.3% of the annual total. Activity stays high through June, August and October.
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 New Hampshire are Northern Black Widow, Western 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 New Hampshire
- Appalachian National Scenic Trail — National Scenic Trail
- Saint-Gaudens National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see black widows in New Hampshire?+
June is the single best month, and the broader peak window runs through June, August and October, based on 9 verified iNaturalist observations.
When are black widows hardest to see in New Hampshire?+
January is the quietest month for black widows in New Hampshire, with no verified records on iNaturalist.
Are black widows active year-round in New Hampshire?+
Black widows are recorded in 5 of 12 months in New Hampshire, concentrated around June and August.
More places to see black widows
More wildlife in New Hampshire