Best Time to See Bold Jumping Spiders in Massachusetts
May, June and September is the best time to see bold jumping spiders in Massachusetts. Based on 2,950 verified iNaturalist observations, here is exactly when bold jumping spiders are most active across the year in Massachusetts.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
Bold Jumping Spider · Stan Rullman CC BY
Bold Jumping Spider · Teá Montagna CC BY
Bold Jumping Spider · Jack Forrester CC BY
2,950 verified observations of bold jumping spiders in Massachusetts, recorded across 12 months of the year on iNaturalist.
When bold jumping spiders are recorded in Massachusetts
Peak month
May
644 records (21.8% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 24 | 0.8% |
| February | 22 | 0.7% |
| March | 93 | 3.2% |
| April | 340 | 11.5% |
| Maypeak | 644 | 21.8% |
| Junepeak | 539 | 18.3% |
| July | 278 | 9.4% |
| August | 260 | 8.8% |
| Septemberpeak | 385 | 13.1% |
| October | 303 | 10.3% |
| November | 40 | 1.4% |
| December | 22 | 0.7% |
Bold Jumping Spiders you are most likely to see
| Species | Verified observations |
|---|---|
| Bold Jumping Spider | 2,950 |
Weather to expect, source Open-Meteo
Typical weather in Massachusetts
Recent typical conditions by month, so you can plan a trip around both when bold jumping spiders are active and what the weather is doing. The best months to look for bold jumping spiders sit around 47 to 78 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 37°F | 22°F | 3.8" |
| Feb | 39°F | 22°F | 3.4" |
| Mar | 48°F | 28°F | 3.6" |
| Apr | 57°F | 38°F | 4.6" |
| Maybest time | 68°F | 47°F | 3.4" |
| Junbest time | 78°F | 58°F | 3.6" |
| Jul | 83°F | 65°F | 5.4" |
| Aug | 82°F | 64°F | 3.5" |
| Sepbest time | 73°F | 56°F | 5.3" |
| Oct | 62°F | 47°F | 5.3" |
| Nov | 50°F | 34°F | 3.1" |
| Dec | 42°F | 27°F | 5.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Massachusetts. Weather varies year to year, so treat these as a guide.
Sightings of bold jumping spiders in Massachusetts peak in May, when 644 of the year's 2,950 verified observations are logged — about 21.8% of the annual total. Activity stays high through May, June and September.
The quietest stretch is February, December and January, when bold jumping spiders are hardest to find — February sees just 22 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The bold jumping spiders you are most likely to encounter in Massachusetts are Bold Jumping Spider — 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 bold jumping spiders in Massachusetts
- Appalachian National Scenic Trail — National Scenic Trail
- Blackstone River Valley National Historical Park — National Historical Park
- Boston Harbor Islands National Recreation Area — National Recreation Area
- Cape Cod National Seashore — National Seashore
- Adams National Historical Park — National Historical Park
- Boston African American National Historic Site — National Historic Site
Frequently asked questions
What is the best month to see bold jumping spiders in Massachusetts?+
May is the single best month, and the broader peak window runs through May, June and September, based on 2,950 verified iNaturalist observations.
When are bold jumping spiders hardest to see in Massachusetts?+
February is the quietest month for bold jumping spiders in Massachusetts, with only 22 verified records.
Are bold jumping spiders active year-round in Massachusetts?+
Bold jumping spiders are recorded in 12 of 12 months in Massachusetts, so they can be seen year-round, with a clear peak in May.