Weather in Уэст-Йеллоустон by month: what to expect

The weather in Уэст-Йеллоустон shifts dramatically with the seasons, offering a mix of snowy winters and warm summers. From December to February, the town is blanketed in snow, with temperatures often dropping below -10 °C, making it ideal for winter activities. By May, the landscape transforms as temperatures rise, and June through August bring the warmest and driest conditions, perfect for exploring the nearby national park.

Autumn arrives early in Уэст-Йеллоустон, with September and October bringing cooler days and a chance of rain. November marks the transition back to winter, while March and April remain unpredictable, with lingering snow and occasional thaws. The town’s high elevation ensures crisp air year-round, so layers are always useful.

Winters in Уэст-Йеллоустон are cold, with average temperatures in January hovering around -10.7 °C and nighttime lows dipping to -16.5 °C. The coldest months, December and January, see little relief, though sunny days can make the chill more bearable. By March, temperatures begin to climb, but nights remain frosty, often below -10 °C.

June through August bring the warmest weather, with daytime highs reaching +19.7 °C to +25.3 °C. Evenings cool off quickly, though, dropping to +3.7 °C in June and +7.4 °C in July. September and October see a sharp decline, with October averaging just +3.7 °C and the first frosts returning by late in the month.

Snow dominates the winter months in Уэст-Йеллоустон, with December and February seeing the highest precipitation, around 60–70 mm. While January is slightly drier, the snowpack remains deep, creating a winter wonderland. March and April bring a mix of snow and rain, though totals decrease as spring progresses.

Summer is the driest season, with July averaging just 13 mm of precipitation. June and August are also relatively dry, making them ideal for outdoor adventures. September and October see a gradual increase in rain, while November marks the start of the wetter season, with snow returning by late in the month.

For a winter trip to Уэст-Йеллоустон, pack warm layers, including a heavy coat, insulated boots, gloves, and a hat. Temperatures in December and January can drop below -15 °C, so thermal underwear and waterproof gear are essential. If you plan to explore the park, bring traction devices for icy trails.

In summer, lightweight clothing works well for daytime, but evenings can be cool, so a jacket or sweater is useful. July and August are the warmest months, but nights still dip to +7 °C, so layers are key. For spring and autumn, pack a mix of warm and cool-weather gear, as temperatures can swing from +10 °C to near freezing in a single day.