Mount Rainier National Park Weather in May
May in Mount Rainier National Park averages 3°C (37°F) during the day and -8°C (18°F) at night. Quite a bit of snow/rainfall is typical this month, with around 152 mm (6 in) on average. An umbrella is a good idea.
Rainfall in Mount Rainier National Park in May
Typically, about 18 days will experience snow/rainfall, with an average of 152 mm (6 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Mount Rainier National Park in May
Expect highs of 3°C (37°F) in Mount Rainier National Park in May, with nights dropping to around -8°C (18°F). Expect a distinctly cold feel throughout the day, not just overnight. With lows of -8°C (18°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. This month is extremely cold, so be sure to dress in layers to keep warm. Proper preparation can help you stay comfortable.
Sunshine in Mount Rainier National Park in May
There are approximately 247 hours of sunshine this month, resulting in mostly clear days. Despite the cool temperatures, the sunshine makes it an enjoyable time to be outside.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Mount Rainier National Park.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mount Rainier National Park's climate page.
Mount Rainier National Park Temperature in May
Min Temperature
-8°C (18°F)
Max Temperature
3°C (37°F)
Chance of Rain
60%
Precipitation
152 mm (6 in)
Rainy days
18 days
Sunshine
247 hours *
Percentage Sunshine
52% *
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
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What to Wear in Mount Rainier National Park in May
We recommend to layer up for chilly conditions in Mount Rainier National Park in May. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Also bring a poncho, it will rain a lot! Waterproof everything you can. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Mount Rainier National Park in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mount Rainier National Park's climate page.
See the full Mount Rainier National Park climate overview or explore weather in the United States of America.
