GRANITE PEAK PUBLICATIONS: Accompanying travelers to the national park since 2002

Seasons

When’s a good time to visit Yellowstone? The answer depends on the activities you like and the weather you are prepared to experience.

Spring

Summer

Autumn

Winter

Mystic Fallswildflower meadowaspens in autumnbison in snow
Months: May, June
Daytime:
50s & 60s °F
(teens °C)
Nighttime:
30s °F (0-4°C)
Months: July, August
Daytime:
70s – low 80s °F
(20s °C)
Nighttime:
40s °F or below
(below 9°C)
Months:
September to early October
Daytime:
40s – 60s °F (5-20°C)
Nighttime:
freezing and below
Months:
mid-October to April
Daytime:
around freezing to
well below
Nighttime:
usually freezing, often below 0°F (-18°C)

Pros

Baby animals numerous
Wildflowers at lower elevations
Waterfalls at their peak

Pros

Wildflowers everywhere
Drier trails
Berries ripening in August
Clear, starlit nights
Great fishing

Pros

Cool but pleasant
Fewer visitors
Great light for photography
Elk gathering in herds and bugling
Aspen turn golden

Pros

Cross-country skiing
Ice-encrusted “ghost” trees
Animals gather near roads
Snowmobiling

Cons

Some mountain passes closed
Biting insects common
Meadows flooded, streams very high

Cons

Peak numbers of visitors
Late afternoon thunderstorms
Potential fires or hordes of grasshoppers in dry years

Cons

Cold nights
Greater chance of rain & snow
All campgrounds but Mammoth Campground close

Cons

Extreme cold
Heavy snows and severe storms
Most roads are closed to cars

Updated August 23, 2017. Copyright Janet Chapple. All rights reserved.

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