July is high summer in New Jersey — hot, humid days, meadows full of butterflies and dragonflies, and the markets at their iconic peak as Jersey tomatoes, sweet corn, blueberries, and peaches all come in. The breeding birds quiet, but the first southbound shorebirds already trickle back to the coast.
Week by week in July
July 2–8
- The first Jersey tomatoes and legendary sweet corn arrive alongside blueberries and ripening peaches — the foods that define summer in the Garden State.
- The dawn chorus fades as breeding winds down, but fledgling robins, cardinals, and house wrens beg from the shrubs everywhere.
- The summer Milky Way returns to full glory, streaming through the Summer Triangle down toward Sagittarius and Scorpius low in the south.
July 9–15
- Fall shorebird migration begins as failed Arctic breeders head south — dowitchers, yellowlegs, and sandpipers return to Forsythe and the back bays.
- High-summer meadows bloom with black-eyed Susan, purple coneflower, wild bergamot, and chicory's sky-blue stars.
- Pick squash, cucumbers, and beans daily, water deeply through the heat, and begin sowing the fall garden of carrots and beets.
July 16–22
- Butterfly diversity peaks in the hot meadows — swallowtails, great spangled fritillaries, buckeyes, and abundant skippers work the coneflower and milkweed.
- Pond and marsh edges glow with pickerelweed, swamp milkweed, and buttonbush, and the first Joe-Pye weed rises in the wet meadows.
- The Sagittarius teapot points into the bright star clouds at the galaxy's center, the richest stretch of summer sky for binoculars.
July 23–29
- Jersey tomatoes and sweet corn hit their stride, with peaches, the last blueberries, eggplant, peppers, and the first melons crowding the stands.
- Purple martins gather in enormous pre-migration roosts, and the back bays collect growing numbers of returning shorebirds on the dropping tides.
- The Pine Barrens pitch pines carry maturing serotinous cones, sealed shut until fire opens them in this fire-shaped forest.
Birds This Month
July is the quiet middle of the bird year in New Jersey — the dawn chorus fades as breeding winds down, and many birds molt and lie low in the heat. Family groups are everywhere, though: fledgling American robins, cardinals, house wrens, and chipping sparrows beg from the shrubs, ospreys raise large young on the coastal platforms, and chimney swifts and barn swallows hawk insects over towns and fields. Eastern whip-poor-wills still call in the Pine Barrens nights.
The first hint of fall is already on the coast: "fall" shorebird migration begins in July as failed and early-finishing Arctic breeders head south. Forsythe (Brigantine) and the back bays start collecting returning short-billed dowitchers, lesser yellowlegs, least and semipalmated sandpipers, and willets. Purple martins gather in big pre-migration roosts, and laughing gulls and terns crowd the marshes.
This month's tip: beat the heat with an early-morning visit to a coastal impoundment like Forsythe to catch the very first returning shorebirds on the dropping tide.
What's Blooming
July is high-summer bloom in the meadows, wetlands, and roadsides of New Jersey. The classic mid-summer flowers are everywhere: black-eyed Susan, purple coneflower, wild bergamot, Queen Anne's lace, chicory's sky-blue stars, common milkweed and butterfly weed, and the first Joe-Pye weed and ironweed in the wet meadows. Pond and marsh edges glow with pickerelweed, swamp milkweed, buttonbush, and the white spires of swamp loosestrife.
The Pine Barrens hold their own midsummer treasures: orange milkwort, meadow beauty, the carnivorous thread-leaved sundews and bladderworts in the wet savannas, and various bog orchids. Along the coast, seaside goldenrod greens the dunes, sea lavender hazes the salt marshes purple, and the native prickly-pear cactus finishes its yellow bloom. The flush of summer color peaks now, the meadows alive with bees and butterflies.
Garden This Month
July is harvest season in the New Jersey garden, and the work shifts to keeping plants productive through the heat. Pick daily — squash, cucumbers, beans, and tomatoes all slow down if fruit is left to over-ripen on the plant. Water deeply and consistently, ideally in the morning, especially in the sandy soils of the south and shore that dry fast, and mulch heavily to conserve moisture and moderate soil temperature. Side-dress heavy feeders to keep them going.
This is also when the fall garden begins: sow carrots, beets, bush beans, and a second round of cucumbers and summer squash, and start fall brassica seedlings (broccoli, cabbage, kale) for late-summer transplanting. Watch closely for the season's pests and diseases — Japanese beetles, squash vine borers, hornworms, and the early blight and powdery mildew that thrive in Jersey humidity — and act early. Deadhead flowers, keep up with weeds, and harvest garlic when the lower leaves brown.
Zone 6a (northwestern Highlands): the main harvest and the start of fall planting overlap — sow fall carrots, beets, and bush beans early in the month and set out fall brassica transplants. Cooler nights here favor a longer summer-crop run.
Zone 7a (central & southern New Jersey): peak harvest of tomatoes, squash, beans, and cucumbers — water deeply through heat, and begin sowing the fall garden of carrots, beets, and brassicas mid-to-late month.
Zone 7b (southern shore & Cape May): the garden is at peak production in heat and humidity — water heavily in the fast-draining sandy soil, watch for fungal disease in the humidity, and start fall crops late in the month.
What's at the Farmers Market
July is the Garden State's signature market month, the peak of everything Jersey is famous for. Blueberries are at their height — Hammonton, the self-styled Blueberry Capital of the World, anchors the crop — and peaches ripen from the orchards, fragrant and juicy. The first Jersey tomatoes and the legendary sweet corn arrive mid-to-late month, the foods that define summer here.
The stands overflow with summer squash, zucchini, cucumbers, green beans, beets, carrots, new potatoes, onions, garlic, eggplant, and peppers, plus cherries and the first melons. Choose blueberries that are plump and dusty-blue, peaches that are fragrant and give slightly at the stem, corn with tight green husks and plump kernels, and tomatoes that are heavy and fragrant. Store tomatoes at room temperature, never the fridge, ripen firm peaches on the counter, and use the corn fast before its sugars fade. This is the market at its absolute best.
Night Sky This Month
July nights are warm and the summer Milky Way returns to full glory in New Jersey. After dark the Summer Triangle — Vega in Lyra, Deneb in Cygnus, and Altair in Aquila — rides high in the east, with the Milky Way streaming through it down toward the south. Low in the south, Scorpius curls around red Antares, and the "teapot" of Sagittarius points into the bright star clouds at the center of our galaxy — the richest stretch of summer sky for binoculars.
This is prime deep-sky season: the Lagoon and Trifid nebulae and dense globular and open clusters fill the Sagittarius and Scorpius region. No major meteor shower peaks this month, though the Delta Aquariids begin in late July, building toward August's Perseids and adding a few meteors low in the south.
The warm nights make this the easiest dark-sky season — head to the Pine Barrens interior or the southern shore for the best view of the Milky Way arching overhead. Exact planet positions vary year to year — the printable New Jersey night-sky guide carries this year's details for your region.
Butterflies & Pollinators
July is a peak butterfly month in New Jersey, the summer broods at full strength in the hot meadows. Eastern tiger swallowtails and spicebush swallowtails nectar at coneflower and bergamot, the big great spangled fritillary works the milkweed, and the meadows fill with common buckeyes, pearl crescents, red admirals, American and painted ladies, eastern tailed-blues, and a great diversity of skippers. Red-spotted purples and viceroys patrol wood edges and wetlands. Monarch numbers build through the summer brood, their caterpillars conspicuous on milkweed, and the Pine Barrens hold specialties of the pitch-pine and cedar habitats. This is the season the garden and meadow nectar plants pay off — coneflower, milkweed, bergamot, joe-pye weed, and butterfly bush draw the most species. Watch milkweed for monarch eggs and caterpillars, and parsley and dill for black swallowtail larvae.
What to plant for them is in the New Jersey native plants guide
Trees This Month
July's trees are in full, mature summer leaf across New Jersey, and the focus shifts from flower to fruit. The black cherry ripens its small dark fruit that feeds dozens of bird species, mulberries drop their staining fruit, and the highbush blueberry of the Pine Barrens bogs — the wild ancestor of the cultivated crop — ripens alongside the famous Hammonton harvest. Sweetbay magnolia continues its scattered lemony bloom in the coastal-plain swamps.
In the Pine Barrens the pitch pines carry maturing cones, many serotinous and sealed shut until fire opens them, a hallmark of this fire-shaped forest. The oaks — red, white, black, and scarlet — are sizing their acorns, and hickories their nuts, the mast that will feed wildlife through fall and winter. The deep shade beneath the closed canopy, the steady drone of cicadas, and the slow ripening of fruit and nut define the high-summer woods.
The New Jersey native plants guide covers what grows with them
Weather & Daylight
Across New Jersey, a typical July day averages a high near 86°F and a low near 65°F, with about 4.7 inches of precipitation — statewide averages from the 1991–2020 U.S. climate normals.
Hot and humid at its peak, mid-80s highs press down with thick, sultry air and the year's heaviest downpours.
| Average high | 86°F |
|---|---|
| Average low | 65°F |
| Precipitation | 4.7 in |
| Sunrise (mid-month) | 5:40 ET |
| Sunset (mid-month) | 20:28 ET |
Figures are statewide averages over the 1991–2020 U.S. climate normals; local conditions vary with elevation and distance from the coast. Sunrise and sunset are computed for a midstate point on the 15th (ET).
Next month's version of this page, by email
One short note when New Jersey's next month turns — what's arriving, blooming, and worth a night outside.
Go deeper with the New Jersey guides
The complete New Jersey birding, native-plant, and night-sky references — or the whole year, week by week, in one book.
Same month elsewhere: July in New Mexico · July in New York · July in North Carolina