Denali National Park and Preserve climate data

Best times to travel

The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.

Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.

Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.

Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.

Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.

for Denali National Park, United States
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Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
High season: June - Aug.
Shoulder season: May, Sep.
Crowdedness: 4 (Moderate tourist numbers)
Tap on a month for more info Hover over a month for more info
Most lodges, hotels and park buses operate only mid-May to mid-September, bus service ends when snow closes the road
Park Road is open to private vehicles only to mile 15, deeper travel requires a bus
Denali is often hidden by clouds, with the best chance of seeing it in summer mornings
Average climate data for Denali National Park and Preserve, United States
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average maximum temperature (°C) -15 -13 -9 -2 6 12 14 12 6 -4 -12 -14 14
Average minimum temperature (°C) -25 -23 -20 -13 -5 1 4 2 -3 -12 -21 -23 -25
Average precipitation (mm) 25 27 25 17 18 56 76 74 45 20 23 23 430
Average rainfall days (days) 9 10 10 8 10 14 16 16 15 13 12 12 145
Average daily daylight hours (h) 6 8 11 15 18 20 19 16 12 9 6 4 12
Average daily sunshine hours (h) 2 4 6 8 9 9 7 6 5 3 2 2 5
Average UV index 0 0 1 2 4 5 5 4 2 1 0 0 2

Minimum and maximum temperatures in Denali National Park and Preserve

The warmest month, with the highest average maximum temperature, is July (13.9 °C). The month with the lowest average maximum temperature is January (-15 °C). Overall, the average maximum temperature over the whole year is -1.6 °C.

The month with the highest average minimum temperature is July (4 °C). The coldest month, with the lowest average minimum temperature, is January (-25 °C). Overall, the average minimum temperature over the whole year is -11.5 °C.

Rainfall amount in Denali National Park and Preserve

The wettest month, with the highest amount of precipitation, is July (76 mm). The driest month, with the least amount of precipitation, is April (17.1 mm). Over the whole year there are 429.9 mm of rainfall on average.

Rainfall days in Denali National Park and Preserve

The month with the most days of rain is July (16.1 days). The month with the fewest days of rain is April (8 days). Over the whole year there are 144.6 days of rain on average.

Daylight hours and sunshine hours in Denali National Park and Preserve

The month with the longest days, so the most daylight, is June (Average daylight: 20 h). The month with the shortest days, so the least daylight, is December (Average daylight: 4.1 h). Over the whole year there are 12 h of daylight per day on average.

The month with the most sunshine per day is June (Average sunshine: 9.1 h). The month with the least sunshine per day is January (Average sunshine: 1.9 h). Over the whole year there are 5.2 h of sunlight per day on average.

UV index in Denali National Park and Preserve

The months with the highest average UV index are June and July (UV index: 5). The months with the lowest average UV index are January, February, November and December (UV index: 0). Over the whole year the average UV index is 2.

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