Olympic National Park 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 Olympic 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: July - Sep.
Shoulder season: May - June, Oct.
Crowdedness: 6 (Many tourists)
Tap on a month for more info Hover over a month for more info
Hurricane Ridge road often closed in winter due to snow, open daily only mid-summer
High alpine trails usually snow-free only July to September
Rainforest (Hoh, Quinault) wettest November to March, with some road and trail washouts
Average climate data for Olympic National Park, United States
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average maximum temperature (°C) 5 7 10 14 18 20 23 24 20 14 8 6 24
Average minimum temperature (°C) -1 0 1 3 6 8 10 10 9 5 2 1 -1
Average precipitation (mm) 227 176 155 82 47 30 19 30 44 132 232 251 1,427
Average rainfall days (days) 17 15 16 13 11 9 5 6 8 14 18 17 149
Average snowfall (mm) 179 50 31 0 0 0 0 0 0 0 28 80 367
Average daily daylight hours (h) 8 10 11 13 15 16 15 14 12 10 9 8 12

Minimum and maximum temperatures in Olympic National Park

The warmest month, with the highest average maximum temperature, is August (23.5 °C). The month with the lowest average maximum temperature is January (4.8 °C). Overall, the average maximum temperature over the whole year is 14 °C.

The month with the highest average minimum temperature is August (10.4 °C). The coldest month, with the lowest average minimum temperature, is January (-0.5 °C). Overall, the average minimum temperature over the whole year is 4.5 °C.

Rainfall amount in Olympic National Park

The wettest month, with the highest amount of precipitation, is December (251 mm). The driest month, with the least amount of precipitation, is July (19.1 mm). Over the whole year there are 1,426.7 mm of rainfall on average.

Rainfall days in Olympic National Park

The month with the most days of rain is November (18 days). The month with the fewest days of rain is July (5 days). Over the whole year there are 149.3 days of rain on average.

Snowfall amount in Olympic National Park

The month with the most snowfall is January (178.9 mm). The months with the least snowfall are April, May, June, July, August, September and October (0 mm). Over the whole year there are 367.2 mm of snowfall on average.

Daylight hours and sunshine hours in Olympic National Park

The month with the longest days, so the most daylight, is June (Average daylight: 16 h). The month with the shortest days, so the least daylight, is December (Average daylight: 8 h). Over the whole year there are 11.8 h of daylight per day on average.

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