Best Time to See Bold Jumping Spiders in Pennsylvania
May, June and April is the best time to see bold jumping spiders in Pennsylvania. Based on 4,253 verified iNaturalist observations, here is exactly when bold jumping spiders are most active across the year in Pennsylvania.
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 · Public domain CC0
Bold Jumping Spider · Mila C. CC BY
Bold Jumping Spider · Mila C. CC BY
4,253 verified observations of bold jumping spiders in Pennsylvania, recorded across 12 months of the year on iNaturalist.
When bold jumping spiders are recorded in Pennsylvania
Peak month
May
1,018 records (23.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 39 | 0.9% |
| February | 47 | 1.1% |
| March | 181 | 4.3% |
| Aprilpeak | 601 | 14.1% |
| Maypeak | 1,018 | 23.9% |
| Junepeak | 667 | 15.7% |
| July | 338 | 7.9% |
| August | 323 | 7.6% |
| September | 488 | 11.5% |
| October | 436 | 10.3% |
| November | 68 | 1.6% |
| December | 47 | 1.1% |
Bold Jumping Spiders you are most likely to see
| Species | Verified observations |
|---|---|
| Bold Jumping Spider | 4,253 |
Weather to expect, source Open-Meteo
Typical weather in Pennsylvania
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 40 to 79 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 38°F | 23°F | 3.1" |
| Feb | 41°F | 23°F | 3.6" |
| Mar | 50°F | 31°F | 3.3" |
| Aprbest time | 60°F | 40°F | 4.1" |
| Maybest time | 70°F | 49°F | 4.1" |
| Junbest time | 79°F | 59°F | 3.9" |
| Jul | 86°F | 65°F | 3.2" |
| Aug | 84°F | 64°F | 4.3" |
| Sep | 75°F | 57°F | 3.9" |
| Oct | 64°F | 47°F | 4" |
| Nov | 51°F | 35°F | 2.4" |
| Dec | 43°F | 29°F | 4.3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Pennsylvania. Weather varies year to year, so treat these as a guide.
Sightings of bold jumping spiders in Pennsylvania peak in May, when 1,018 of the year's 4,253 verified observations are logged — about 23.9% of the annual total. Activity stays high through May, June and April.
The quietest stretch is January, February and December, when bold jumping spiders are hardest to find — January sees just 39 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 Pennsylvania 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 Pennsylvania
- Appalachian National Scenic Trail — National Scenic Trail
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake Bay
- Delaware Water Gap National Recreation Area — National Recreation Area
- Fort Necessity National Battlefield — National Battlefield
- Friendship Hill National Historic Site — National Historic Site
Frequently asked questions
What is the best month to see bold jumping spiders in Pennsylvania?+
May is the single best month, and the broader peak window runs through May, June and April, based on 4,253 verified iNaturalist observations.
When are bold jumping spiders hardest to see in Pennsylvania?+
January is the quietest month for bold jumping spiders in Pennsylvania, with only 39 verified records.
Are bold jumping spiders active year-round in Pennsylvania?+
Bold jumping spiders are recorded in 12 of 12 months in Pennsylvania, so they can be seen year-round, with a clear peak in May.
More wildlife in Pennsylvania