Weather in Yellowstone: When's a Good Time to Visit? |
AUTUMN |
WINTER |
SPRING |
SUMMER |
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Months: Sept. - early Oct. Daytime: 40s - 60s °F (5-20°C) Nighttime: freezing and below |
Months: mid-Oct. - April Daytime: around freezing to well below Nighttime: usually freezing, often below 0°F |
Months: May, June Daytime: 50s & 60s °F (teens °C) Nighttime: 30s °F (0-10°C) |
Months: July, Aug. Daytime: 70s - low 80s °F (20s °C) Nighttime: 40s & below °F (below 8°C) |
PROS: Fewer visitors Elk gathering in herds and bugling Aspen turn golden |
PROS: Cross-country skiing Ice-encrusted "ghost" trees Animals gather near roads Snowmobiling |
PROS: Baby animals numerous Wildflowers at lower elevations Waterfalls at their peak |
PROS: Wildflowers everywhere Drier trails Ripening berries Clear, starlit nights Great fishing |
CONS: Cold nights Greater chance of rain & snow |
CONS: Extreme cold Heavy snows and severe storms Most roads are closed to cars Too many snowmobiles |
CONS: Some mountain passes closed Biting insects common Meadows flooded, streams very high |
CONS: Peak numbers of visitors Late afternoon thunderstorms Hordes of grasshoppers in dry years |