Best Time to See Dragonflies in Connecticut
July, June and August is the best time to see dragonflies in Connecticut. Based on 14,602 verified iNaturalist observations, here is exactly when dragonflies are most active across the year in Connecticut.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Familiar Bluet · Andrew Hrycyna CC BY
Fragile Forktail · Kristof Zyskowski CC BY
Great Blue Skimmer · Kristof Zyskowski CC BY
14,602 verified observations of dragonflies in Connecticut, recorded across 12 months of the year on iNaturalist.
When dragonflies are recorded in Connecticut
Peak month
July
4,297 records (29.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 3 | 0% |
| February | 7 | 0% |
| March | 6 | 0% |
| April | 91 | 0.6% |
| May | 1,812 | 12.4% |
| Junepeak | 4,170 | 28.6% |
| Julypeak | 4,297 | 29.4% |
| Augustpeak | 2,596 | 17.8% |
| September | 1,024 | 7% |
| October | 449 | 3.1% |
| November | 136 | 0.9% |
| December | 11 | 0.1% |
Dragonflies you are most likely to see
| Species | Verified observations |
|---|---|
| Blue Dasher | 1,306 |
| Ebony Jewelwing | 887 |
| Common Whitetail | 845 |
| Eastern Pondhawk | 782 |
| Autumn Meadowhawk | 715 |
| Fragile Forktail | 589 |
| Widow Skimmer | 478 |
| Eastern Forktail | 452 |
Weather to expect, source Open-Meteo
Typical weather in Connecticut
Recent typical conditions by month, so you can plan a trip around both when dragonflies are active and what the weather is doing. The best months to look for dragonflies sit around 59 to 84 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 39°F | 24°F | 4.2" |
| Feb | 41°F | 24°F | 3.6" |
| Mar | 49°F | 30°F | 4.2" |
| Apr | 58°F | 39°F | 5.5" |
| May | 68°F | 48°F | 4" |
| Junbest time | 78°F | 59°F | 3.6" |
| Julbest time | 84°F | 66°F | 5.2" |
| Augbest time | 82°F | 65°F | 4.1" |
| Sep | 74°F | 58°F | 5.9" |
| Oct | 64°F | 48°F | 5.6" |
| Nov | 51°F | 35°F | 3.1" |
| Dec | 43°F | 29°F | 5.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Connecticut. Weather varies year to year, so treat these as a guide.
More on dragonflies in Connecticut:
Sightings of dragonflies in Connecticut peak in July, when 4,297 of the year's 14,602 verified observations are logged — about 29.4% of the annual total. Activity stays high through July, June and August.
The quietest stretch is January, when dragonflies are hardest to find — January sees just 3 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The dragonflies you are most likely to encounter in Connecticut are Blue Dasher, Ebony Jewelwing and Common Whitetail — 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 dragonflies in Connecticut
- Appalachian National Scenic Trail — National Scenic Trail
- Coltsville National Historical Park — National Historical Park
- New England National Scenic Trail — National Scenic Trail
- Washington-Rochambeau Revolutionary Route National Historic Trail — National Historic Trail
- Weir Farm National Historical Park — National Historical Park
Frequently asked questions
What is the best month to see dragonflies in Connecticut?+
July is the single best month, and the broader peak window runs through July, June and August, based on 14,602 verified iNaturalist observations.
When are dragonflies hardest to see in Connecticut?+
January is the quietest month for dragonflies in Connecticut, with only 3 verified records.
Are dragonflies active year-round in Connecticut?+
Dragonflies are recorded in 12 of 12 months in Connecticut, so they can be seen year-round, with a clear peak in July.
More places to see dragonflies
More wildlife in Connecticut