July is the brief, brilliant peak of the Wyoming high country — the alpine meadows of the Tetons, Wind Rivers, and Beartooths in full bloom, the longest stretch of warmth, and butterflies and birds at the height of mountain summer. The basins turn hot and dry, but the mountains hold the year's most spectacular wildflower show.
Week by week in July
July 2–8
- The alpine show peaks in the Tetons, Wind Rivers, and Beartooths — paintbrush, lupine, columbine, gentian, and blue alpine forget-me-not.
- Hike the alpine at dawn for American pipits, white-crowned sparrows, and gray-crowned rosy-finches nesting near the last snowfields.
- Alpine fritillaries, high-country blues, and tundra satyrs fly over the flowering meadows as the season climbs into the high country.
July 9–15
- The summer Milky Way blazes from Scorpius and Sagittarius over the brightest part of the galaxy, with M13 in Hercules high overhead.
- Markets are in full summer swing with summer squash, cucumbers, beans, new potatoes, and the first raspberries kept sweet by cool nights.
- American dippers work the mountain streams while broad-tailed and rufous hummingbirds fuel up on the high-meadow paintbrush and gilia.
July 16–22
- Puddling clubs of swallowtails, sulphurs, and blues gather on damp gravel along mountain trails at the season's butterfly peak.
- Water deeply against the high-altitude sun and wind, harvest steadily, and sow a fall succession of fast greens, lettuce, and bush beans.
- Fireweed blazes pink up open and burned slopes as the late paintbrush, gentian, and elephant's head hold the high meadows.
July 23–29
- Clark's nutcrackers begin caching the new crop of whitebark and limber pine seed as early shorebird migration starts on the drying flats.
- At treeline whitebark and limber pines set fat, seed-rich cones that the nutcrackers harvest, a keystone interaction of the high Rockies.
- The building Perseids begin to flick across the late nights as the Summer Triangle rides high over the dark high valleys.
Birds This Month
July shifts Wyoming's best birding into the mountains as the basins quiet in the heat. The subalpine forests and meadows of Yellowstone, the Tetons, and the Wind River and Bighorn ranges are at their breeding peak: mountain chickadees, ruby-crowned kinglets, hermit and Swainson's thrushes, Cassin's finches, pine grosbeaks, Clark's nutcrackers, gray jays (Canada jays), and red crossbills. Broad-tailed and rufous hummingbirds work the paintbrush and gilia, and on the highest tundra American pipits, white-crowned sparrows, and gray-crowned rosy-finches nest near the lingering snowfields.
In the lowlands the breeding season winds toward fledging — young western tanagers, bullock's orioles, lazuli buntings, and yellow warblers in the cottonwoods, and second broods in the sage. Mountain streams have American dippers and spotted sandpipers, and the high lakes hold Barrow's goldeneye and common mergansers with broods. Ospreys and Bald Eagles fish the rivers and reservoirs, and Golden Eagles hunt the open ridges. Early shorebird migration begins late in the month on the drying mudflats.
This month's tip: hike into the alpine in the cool of morning for the high specialties and the wildflowers together, and listen for the thin calls of rosy-finches and pipits around the snowfields — the high country is the place to bird in July's heat.
What's Blooming
July is the second of Wyoming's two best wildflower months and the absolute peak of the alpine show. As the last snow melts off the high meadows of the Tetons, Wind Rivers, and Beartooths, the subalpine and alpine slopes erupt: Indian paintbrush in scarlet and pink, silvery and subalpine lupine, scarlet gilia, columbine, elephant's head, fringed gentian, mountain bluebells, arnica, sticky geranium, and the intense blue cushions of alpine forget-me-not and moss campion on the highest tundra. The famous Teton and Beartooth meadows reach their crescendo of color now. Lower down, the sagebrush flats and benches still hold blanketflower, wild blue flax, penstemon, buckwheat, and the late paintbrush. It is the lush, flowering, full-bloom heart of the Wyoming mountain year, well worth the climb to the high country.
Garden This Month
July is peak production in Wyoming's gardens, and water is everything. The combination of high-altitude sun, hot dry basin air, and relentless wind pulls moisture from soil and plants fast, so water deeply and consistently — ideally in the early morning — and keep beds heavily mulched to hold what you give them. Harvest steadily to keep plants producing: pick beans, summer squash, and cucumbers young, cut lettuce and greens before they bolt in the heat, and pull the first roots and early potatoes.
Even in midsummer, the short season frames the work. In the high valleys frost can still appear on a clear July night, so keep cover handy for tomatoes and squash. This is the moment to sow a fall succession — fast greens, radishes, lettuce, and bush beans — that will mature in the cool of late summer before the early frosts return. Stay ahead of weeds while they're small, watch for spider mites and grasshoppers in the dry heat, and feed heavy producers to carry them through the short, intense season.
Zone 3b (Jackson Hole, high valleys): the brief growing season is in full swing — keep tomatoes and squash protected on cold nights (frost can still strike here even in July), water deeply against the dry air, and harvest the cool-season crops that thrive in the mountain summer. Start a fall succession of fast greens now.
Zone 4a (high basins, Lander, Cody): the garden is in peak production; keep up deep watering and mulching against the heat and wind, harvest summer crops, and sow a late succession of bush beans, lettuce, and roots for fall before the window closes.
What's at the Farmers Market
Wyoming's farmers markets are in full summer swing in July across Jackson, Cheyenne, Laramie, Sheridan, Cody, and the valleys. The tables fill with high-summer abundance: summer squash and zucchini, cucumbers, green and snap beans, the first new potatoes, beets, carrots, kohlrabi, cabbage, broccoli, and a deep supply of lettuce, kale, chard, and salad greens, all kept sweet and crisp by the cool mountain nights. The first raspberries appear, and strawberries finish in the warmer towns. The state's grass-fed beef, lamb, and bison hold their place.
Look also for fresh Wyoming honey beginning to flow from the alfalfa and clover bloom, cut flowers, fresh herbs, and eggs. Eat the berries within a day or two and refrigerate them unwashed, keep greens and beans cold and use them quickly, and store new potatoes and roots in a cool, dark spot rather than the counter.
Night Sky This Month
July's warm nights and the rising summer Milky Way make for some of the year's most rewarding stargazing under Wyoming's dark skies, even though full darkness arrives late. The Red Desert and southwest basins, and the high backcountry of Yellowstone and Grand Teton, remain premier dark-sky destinations, and summer star parties gather in the cool high valleys. Once true night falls the contrast is stunning.
The summer sky is at its glory: the Summer Triangle of Vega, Deneb, and Altair rides high overhead, Scorpius and Sagittarius sit low in the south over the brightest, richest part of the Milky Way — its star clouds, dark rifts, and the glowing nebulae and clusters of the galactic center blazing from a dark basin floor. Hercules and its globular M13 stand high, and the Lagoon and other Sagittarius nebulae reward binoculars. No major shower peaks in July, but the building Perseids begin to flick across the late nights toward month's end.
Exact planet positions shift year to year — the printable Wyoming night-sky guide lists this season's planet visibility and the darkest viewing sites near you.
Butterflies & Pollinators
July is the peak butterfly month in Wyoming, and the high country is where the action concentrates. As the alpine meadows of the Tetons, Wind Rivers, and Beartooths bloom, the high-elevation specialties fly: the translucent white-and-red Rocky Mountain parnassian drifting low over talus and stonecrop, a suite of alpine fritillaries (including the mormon and bog fritillaries), high-country blues and coppers, the dark alpine and arctic-relict satyrs of the tundra, and checkerspots over the paintbrush. Lower down the diversity is enormous — western tiger, two-tailed, and pale swallowtails, Weidemeyer's admirals, great spangled and other large fritillaries on the meadow violets, painted ladies and West Coast ladies, dozens of skippers, and monarchs breeding on valley milkweed. Watch flowery seeps and damp gravel along mountain trails for puddling clubs of swallowtails, sulphurs, and blues. To ride the season's peak, climb — the butterflies follow the bloom up the mountains through the month.
What to plant for them is in the Wyoming native plants guide
Trees This Month
July finds Wyoming's trees in deep summer green, the forests fully out from the basins to the high ridges. In the irrigated valleys and along the rivers the great plains cottonwoods cast dense shade over the Green, Snake, and North Platte, and the quaking aspens are at their fullest, their leaves trembling silver-green across the mountain slopes — the heart of the state's lushest woodland. The willows and alders line every mountain stream.
The conifers hold the high country: lodgepole pine across the Yellowstone and Medicine Bow plateaus, Douglas-fir on the montane slopes, and the subalpine zone of Engelmann spruce and subalpine fir giving way at treeline to wind-twisted whitebark and limber pines, their cones swelling toward fall. Clark's nutcrackers and pine grosbeaks work the high pines, and the streamside cottonwoods and aspens shelter fledgling warbling vireos, house wrens, and sapsuckers. The dry foothill Rocky Mountain junipers and limber pines stand against the heat-shimmering basins below.
Weather & Daylight
Across Wyoming, a typical July day averages a high near 82°F and a low near 51°F, with about 1.2 inches of precipitation — statewide averages from the 1991–2020 U.S. climate normals.
Peak summer heat settles in with afternoons near 82 degrees, warm nights, and drier air compared to spring's soggy stretch.
| Average high | 82°F |
|---|---|
| Average low | 51°F |
| Precipitation | 1.2 in |
| Sunrise (mid-month) | 5:44 MT |
| Sunset (mid-month) | 20:47 MT |
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 (MT).
Next month's version of this page, by email
One short note when Wyoming's next month turns — what's arriving, blooming, and worth a night outside.
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The complete Wyoming birding, native-plant, and night-sky references — or the whole year, week by week, in one book.
Same month elsewhere: July in Alabama · July in Arizona · July in Arkansas