May weather forecastOlympic National Park, WA
May
Weather in May
May in Olympic National Park highlights the transitioning weather from spring to early summer. The park witnesses a significant dip in rainfall, now only averaging 1.8" (46mm), indicating drier days when compared to the previously more humid April. Stepping into May, the increase in temperatures and daylight hours, reaching more than 15 hours a day, underlines the strong presence of warmer seasons. The month, offering warmer days and cool nights, provides the perfect balance between the two extremes. It sets the groundwork for the arrival of the hot summer days.Temperature
The onset of May introduces a subtle rise in the average high-temperature, nudging from a refreshing 56.8°F (13.8°C) in April to a comfortable 63.5°F (17.5°C). Throughout May, the temperature in Olympic National Park tends to fall to a consistent average low of 42.1°F (5.6°C).Rainfall
In Olympic National Park, Washington, during May, the rain falls for 11 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Olympic National Park, during the entire year, the rain falls for 149 days and collects up to 56.3" (1430mm) of precipitation.Snowfall
In Olympic National Park, snow does not fall in April through October.Daylight
The average length of the day in May is 15h and 12min.On the first day of May, sunrise is at 5:54 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 9:04 pm PDT.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Olympic National Park, WA
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (40.7°F).
- Average low temperature in May: 42°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average rainfall in May
Olympic National Park, WA
- Average rainfall in May: 1.8"
The wettest month (with the highest rainfall) is December (9.9").
The driest month (with the least rainfall) is July (0.8").
Average rainfall days in May
Olympic National Park, WA
- Average rainfall days in May: 11 days
The month with the highest number of rainy days is November (18 days).
The month with the least rainy days is July (5 days).
Average snowfall in May
Olympic National Park, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (7.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average daylight in May
Olympic National Park, WA
- Average daylight in May: 15h and 12min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
