March is Utah's great unlocking, when the West Desert sage-grouse leks roar to life at dawn, the first tundra swans and waterfowl surge through the Great Salt Lake wetlands, and the St. George desert bursts into early wildflower bloom while the Wasatch is still deep in snow. Spring climbs the state from the red-rock south toward the high north.
Week by week in March
February 26 – March 4
- The first turkey vultures, mountain bluebirds, and say's phoebes return, the bluebirds flashing blue over the thawing foothills.
- Start tomatoes and peppers indoors under lights; in warm St. George, direct-sow peas, carrots, and lettuce in the open ground.
- A small run of mountain maple syrup may appear from Wasatch and Bear River boxelder and bigtooth maples if the freeze-thaw cooperates.
March 5–11
- Sage-Grouse leks reach their peak at dawn on the West Desert, and the first American avocets and cinnamon teal arrive at Bear River Refuge.
- The St. George desert bursts into bloom with desert marigold, globemallow, and the first claret cup cactus on the red-rock benches.
- Wasatch Front apricots move toward their early pink bloom, the first orchard trees to risk the late frost.
March 12–18
- Tundra swans stage and depart from the Great Salt Lake wetlands, and sandhill cranes return to stage in the valleys.
- As the bench soil dries enough to crumble, direct-sow peas, spinach, radishes, and onion sets on the Wasatch Front.
- The spring equinox nears as Leo climbs high and the Big Dipper swings overhead, its handle arcing toward rising Arcturus.
March 19–25
- Sagebrush buttercup and the first spring beauty open on south-facing Wasatch foothills, with crocus and daffodils filling city gardens.
- In the St. George country, Sara orangetips, spring whites, and the first anise swallowtails patrol the blooming desert washes.
- Canyon wrens cascade their songs off the slickrock in the Mighty Five parks, and the first tree swallows hawk over the marshes.
March 26 – April 1
- Fremont cottonwoods and bigtooth maples leaf out on the Wasatch Front, and Gambel oak drops last year's bronze leaves as new growth swells.
- White-faced ibis flock back to the Great Salt Lake marshes, and the first broad-tailed hummingbirds trill into the foothills.
- Outdoor markets begin reopening in the south, with high-tunnel spinach, salad mix, and the first cut asparagus appearing.
Birds This Month
March turns Utah birding from winter to migration. On the sagebrush steppe, the Greater Sage-Grouse leks reach their peak — males inflate their yellow air sacs and strut at dawn on the West Desert, in Rich County, and on the high sage flats, one of the West's great wildlife spectacles. The Great Salt Lake wetlands fill fast: huge flocks of tundra swans stage and depart, and the first American avocets, cinnamon teal, northern pintail, and sandhill cranes pour into Bear River Migratory Bird Refuge and Farmington Bay.
The first turkey vultures, tree swallows, say's phoebes, and mountain bluebirds arrive, the bluebirds flashing blue over the thawing foothills. Raptor migration builds, with red-tailed hawks and golden eagles on the move. In the canyon parks, resident canyon wrens cascade their songs off the slickrock, and great horned owls are feeding owlets. Rosy-finches thin out as the snow recedes, while feeders still draw Cassin's finches and juncos on the verge of departure.
What's Blooming
March splits Utah dramatically. In the warm St. George and Zion country, the desert spring is in full swing: desert marigold, globemallow, desert primrose, and the first claret cup cactus begin to color the red-rock benches and washes, and flowering almond, apricot, and redbud brighten Dixie towns. Snowmelt washes and slickrock potholes green with new growth weeks ahead of the north.
On the Wasatch Front, the bench foothills wake more slowly. Sagebrush buttercup and the earliest spring beauty open on south-facing slopes, pussy willows bloom along the creeks, and city gardens fill with crocus, daffodils, forsythia, and the first tulips. Gambel oak and bigtooth maple push reddish leaf buds, and the foothills begin to flush green from below. The high mountains and Uinta Basin stay locked in snow, their bloom still two months off.
Garden This Month
March is when most of Utah's vegetable garden truly begins. On the Wasatch Front, as soon as the soil dries enough to crumble in the hand rather than ball up, direct-sow the cool-season crops: peas, spinach, radishes, lettuce, carrots, and onion sets, and set out hardy broccoli, cabbage, and kale transplants. Indoors under lights, start tomatoes, peppers, and eggplant now to be ready after the frost-free date, which on the benches typically falls in early to mid-May.
Finish dormant pruning before bud-break, plant bare-root fruit trees, cane fruit, and roses, and top-dress beds with compost. Utah's late frosts are the constant hazard — keep frost cloth ready, and resist setting out tender plants too early despite warm spells. In St. George the warm-season garden is already going in; in the high Uinta Basin and mountain valleys the ground may only now be thawing, and seed-starting indoors is still the main task. Watch for emerging weeds and get ahead of them while the soil is soft.
Zone 5b (Wasatch Front benches): as the soil dries enough to work, direct-sow peas, spinach, radishes, lettuce, and onion sets, and set out hardy brassica transplants. Start tomatoes and peppers indoors; finish pruning before bud-break.
Zone 6b (warmer valley floors): plant potatoes, peas, carrots, beets, and cool-season greens outdoors, and transplant onions and cabbage. Keep frost cloth handy for the cold nights that still come.
Zone 8a (St. George): the spring window is closing fast — finish cool-season plantings, set out tomato and pepper transplants late in the month, and direct-sow warm crops like beans and squash as soil warms before the desert heat arrives.
What's at the Farmers Market
March markets in Utah begin their slow turn from pantry to fresh. The winter markets still feature storage onions, potatoes, carrots, beets, and winter squash from the valleys, but the first greenhouse and high-tunnel crops appear: spinach, arugula, salad mix, radishes, and microgreens from Wasatch Front growers extending the season under glass and plastic.
Local honey remains a staple, and the year's first farm eggs hit their stride as hens respond to lengthening days. In the Wasatch and Bear River foothills, the boxelder and bigtooth maple sap run gives a small batch of local mountain syrup if the freeze-thaw weather cooperates. Look also for cold-stored apples still holding from fall, dried beans and grains, and overwintered storage garlic. Outdoor markets are still weeks away across most of the state, with the south the first to reopen.
Night Sky This Month
March brings the spring equinox and milder nights to Utah's dark skies, with the canyon country now warm enough for comfortable late viewing. Bryce Canyon runs its famous astronomy programs as the season opens, and Capitol Reef, Canyonlands, Arches, and Dead Horse Point offer pristine red-rock darkness. Near the Wasatch Front, Antelope Island State Park and the Stansbury Park Observatory Complex west of Salt Lake give accessible dark-sky and telescope views as the valley inversions finally break up.
The sky pivots from winter to spring: Orion and the Pleiades sink toward the western horizon after dark while Leo the Lion climbs high in the east and the Big Dipper swings overhead, its handle arcing to Arcturus rising. No major meteor shower peaks in March, so it is a fine month for galaxy hunting in Leo and the Virgo cluster under the dry desert air. The printable Utah night-sky guide gives this year's planet positions and the best dark-sky viewing dates.
Butterflies & Pollinators
March wakes Utah's butterflies in earnest in the warm south. In the St. George and Zion country, Sara orangetips, spring whites, painted ladies, orange sulphurs, and the first anise swallowtails patrol the desert washes and blooming benches, and juniper hairstreaks emerge in the pinyon-juniper. The desert's early bloom fuels a real early-season butterfly show weeks ahead of the rest of the state.
On the Wasatch Front, the mourning cloak leads — these overwintered adults patrol foothill and canyon edges on warm afternoons — soon joined by the first cabbage whites in gardens and the small blue spring azure in the foothills. The high mountains and northern valleys remain snowbound and quiet. Now is the time to set out nectar plants and confirm native host plants — biscuitroot for anise swallowtails, willow and cottonwood for mourning cloaks and admirals — so emerging adults find food and egg-laying sites as spring climbs the state.
Trees This Month
March breaks Utah's trees from dormancy, south to north and low to high. In the warm Dixie corner, cottonwoods and desert willows leaf out and flowering almond, apricot, and redbud bloom around St. George. On the Wasatch Front, Fremont cottonwood, boxelder, and bigtooth maple push reddish buds and dangle their early catkins and flowers, and Gambel oak thickets begin to drop last year's leaves as new growth swells.
The orchard country wakes: apricots, peaches, cherries, and apples on the Wasatch Front and Box Elder benches move toward bloom, the earliest apricots opening pink late in the month and risking the frost. The state tree, quaking aspen, stays bare on the still-snowy mountains, its bud-break weeks away. Across the plateau country, Utah juniper and Colorado pinyon shed clouds of pollen on warm days, and the high spruce-fir forest holds dark green as the snowpack slowly settles.
Weather & Daylight
Across Utah, a typical March day averages a high near 53°F and a low near 28°F, with about 1.2 inches of precipitation — statewide averages from the 1991–2020 U.S. climate normals.
Milder afternoons near 53F hint at thaw, though mornings near 28F keep frost on the grass and a chill in the air.
| Average high | 53°F |
|---|---|
| Average low | 28°F |
| Precipitation | 1.2 in |
| Sunrise (mid-month) | 7:40 MT |
| Sunset (mid-month) | 19:34 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).
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Same month elsewhere: March in Vermont · March in Virginia · March in Washington