May weather forecastBurien, WA
May
Weather in May
The last month of the spring, May, is an enjoyable month in Burien, Washington, with an average temperature ranging between max 65.3°F (18.5°C) and min 44.4°F (6.9°C).Temperature
A subtle rise in the average high-temperature is observed during May, adjusting from a mild 56.7°F (13.7°C) in April to an enjoyable 65.3°F (18.5°C). Burien, in May, observes a steady average low-temperature of 44.4°F (6.9°C).Humidity
In May, the average relative humidity is 74%.Rainfall
In Burien, Washington, in May, it is raining for 12.3 days, with typically 1.06" (27mm) of accumulated precipitation. In Burien, Washington, during the entire year, the rain falls for 138.2 days and collects up to 14.09" (358mm) of precipitation.Snowfall
In Burien, snow does not fall in April through October.Daylight
The average length of the day in May is 15h and 8min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:21 pm. On the last day of May, in Burien, sunrise is at 5:16 am and sunset at 8:58 pm PDT.
Sunshine
The average sunshine in May is 9h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in May leads to these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Burien, WA
- Average high temperature in May: 65.3°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in May: 44.4°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in May
Burien, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in May
Burien, WA
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.6mph).
Average humidity in May
Burien, WA
- Average humidity in May: 74%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).
Average rainfall in May
Burien, WA
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is December (2.2").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Burien, WA
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in May
Burien, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Burien, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Burien, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in May
Burien, WA
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (13 days).
Average UV index in May
Burien, WA
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Burien, WA
- Average cloud cover in May: 44
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
Burien, WA
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
