May weather forecastEast Renton Highlands, WA
May
Weather in May
The last month of the spring, May, is a comfortable month in East Renton Highlands, Washington, with an average temperature ranging between max 64.2°F (17.9°C) and min 43°F (6.1°C).Temperature
East Renton Highlands observes a slight ascent in average high-temperatures during May, adjusting from a mild 55.9°F (13.3°C) in April to a comfortable 64.2°F (17.9°C). May in East Renton Highlands generally records an average low-temperature of 43°F (6.1°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In East Renton Highlands, Washington, in May, it is raining for 14.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in East Renton Highlands, there are 175.4 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in East Renton Highlands, Washington.Daylight
In May, the average length of the day in East Renton Highlands is 15h and 9min.On the first day of May, sunrise is at 5:49 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:57 pm PDT.
Sunshine
In East Renton Highlands, the average sunshine in May is 8.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In May, the maximum UV index of 4 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
East Renton Highlands, WA
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in May: 43°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in May
East Renton Highlands, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
East Renton Highlands, WA
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
East Renton Highlands, WA
- Average humidity in May: 75%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
East Renton Highlands, WA
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is December (5.12").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in May
East Renton Highlands, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in May
East Renton Highlands, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
East Renton Highlands, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
East Renton Highlands, 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: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in May
East Renton Highlands, WA
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
East Renton Highlands, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
East Renton Highlands, WA
- Average cloud cover in May: 46
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
East Renton Highlands, WA
- Average visibility in May: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).





