Weather in May
Temperature
May marks a minor ascent in the average high-temperature, adjusting from April's cold 42.1°F (5.6°C) to a chilly 49.3°F (9.6°C). Mount Rainier National Park's nights in May experience an average temperature drop to a subzero cold 31.8°F (-0.1°C).Rainfall
In May, in Mount Rainier National Park, the rain falls for 15.4 days. Throughout May, 5.91" (150mm) of precipitation is accumulated. Throughout the year, in Mount Rainier National Park, there are 188.7 rainfall days, and 118.31" (3005mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall. In May, it is snowing for 7.9 days. Throughout May, 26.1" (663mm) of snow is accumulated. In Mount Rainier National Park, during the entire year, snow falls for 121.5 days and aggregates up to 670.91" (17041mm) of snow.Daylight
The average length of the day in May is 15h and 5min.On the first day of May in Mount Rainier National Park, sunrise is at 5:50 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:53 pm PDT.
Frequently asked questions
What is the usual temperature for Mount Rainier National Park in May?
How many days does it rain in May in Mount Rainier National Park?
How many days does it snow in May in Mount Rainier National Park?
How many hours of daylight does Mount Rainier National Park have in May?
When are sunrise and sunset in May in Mount Rainier National Park?
Average temperature in May
Mount Rainier National Park, WA
- Average high temperature in May: 49.3°F
The warmest month (with the highest average high temperature) is August (64.5°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in May: 31.8°F
The month with the highest average low temperature is August (43.9°F).
The coldest month (with the lowest average low temperature) is December (21.1°F).
Average rainfall in May
Mount Rainier National Park, WA
- Average rainfall in May: 5.9"
The wettest month (with the highest rainfall) is November (20.3").
The driest months (with the least rainfall) are July and August (2").
Average rainfall days in May
Mount Rainier National Park, WA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is August (6.6 days).
Average snowfall in May
Mount Rainier National Park, WA
- Average snowfall in May: 26.1"
The months with the highest snowfall are January, November and December (99.9").
The month with the least snowfall is August (0.1").
Average snowfall days in May
Mount Rainier National Park, WA
- Average snowfall days in May: 7.9 days
The month with the highest number of snowfall days is March (19.5 days).
The month with the least snowfall days is August (0.1 days).
Average daylight in May
Mount Rainier National Park, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
Mount Rainier National Park, Washington, USA
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