What’s Happening in Yellowstone May 2025

Spring’s Wild Awakening in Yellowstone: May in the Lamar Valley

May breathes new life into Yellowstone, especially across the sweeping grasslands of Lamar Valley. As snow retreats and the land greens up, the rhythms of spring take over, birds call across thawed meadows, wildflowers begin to bloom, and the wildlife activity reaches a vibrant peak.

By May, daytime temperatures range from the mid-50s to the low 70s°F, while nighttime lows still dip into the 30s. Although most snow has vanished in the valleys, occasional spring storms roll through, keeping the skies dramatic and the light ever-changing, a gift for landscape and wildlife photographers alike.

The trails and pullouts in Lamar Valley become more accessible, making it ideal for exploring the park’s reawakening wilderness.

Bison herds dominate the valley floor, and their cinnamon-colored calves, affectionately known as “red dogs,” are a telltale sign that spring has truly arrived. These energetic calves add a lively contrast to the stoic presence of the adult bison, and their playful antics make for unforgettable encounters.

Meanwhile, a grizzly sow with her cub may be spotted navigating the slopes or foraging in open meadows. Watching a mother bear guide her young through the world is one of the most moving sights Yellowstone offers this time of year.

Moose are also becoming more visible, often browsing along waterways and willow-lined corridors. Their slow, deliberate movements and striking silhouettes offer a different kind of majesty, quiet but just as powerful.

Overhead and in the meadows, the resonant calls of sandhill cranes echo across the landscape. These elegant birds perform their seasonal dances in marshy areas, a behavior that speaks to ancient courtship rituals and the park’s thriving ecosystem.

Red foxes are active and on the prowl this time of year. With kits to feed and longer daylight hours, they can be seen trotting across open fields or pausing to listen for the faint rustle of prey. Their vibrant coats against the green backdrop are a photographer’s dream and a reminder of the smaller, equally captivating stories unfolding in Yellowstone’s wild theater.

Visiting Tips for May: Immerse Yourself in Nature

Visitors to Yellowstone in May should be prepared for warm days and cool nights. Dressing in layers is still advisable, as temperatures can fluctuate. Bringing binoculars for wildlife viewing and a camera for capturing the stunning scenery is highly recommended.

Many roads and trails open during this month, allowing for more access to the park’s incredible landscapes. Guided tours can enhance the experience by providing expert insights into the changing wildlife behaviors and the thriving ecosystem.

May in Lamar and Hayden Valleys is a time of abundant life and beauty. With the peak of calving season, active wildlife, and blooming landscapes, visitors are treated to a spectacular display of nature’s resilience. This month offers an unforgettable experience for those seeking to connect with the wildlife and environment of Yellowstone.

To experience the wonders of Yellowstone’s wildlife and landscapes firsthand, join one of our Wildlife Photography Tours in Yellowstone National Park. Our expert-led tours offer unparalleled opportunities to photograph the park’s iconic animals and breathtaking scenery while providing professional guidance to elevate your photography skills. Whether you’re a beginner or a seasoned photographer, we tailor our experiences to ensure unforgettable moments in the heart of Yellowstone. Visit our website at WildscapeAdventure.com for more information and to book your next adventure with us. Let’s capture the wild together!