May weather forecastLilliwaup, WA
May
Weather in May
May, the last month of the spring in Lilliwaup, is a refreshing month, with an average temperature varying between 63.9°F (17.7°C) and 41.4°F (5.2°C).Temperature
As April transitions into May, Lilliwaup sees a rise in the average high-temperature, moving from a cool 54.9°F (12.7°C) to an enjoyable 63.9°F (17.7°C). Despite the intense daytime heat, Lilliwaup sustains a steady low-temperature average of 41.4°F (5.2°C) during May.Humidity
The average relative humidity in May is 78%.Rainfall
In Lilliwaup, in May, it is raining for 14.3 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 185.4 rainfall days, and 42.87" (1089mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Lilliwaup, Washington, the average length of the day in May is 15h and 8min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:24 pm. On the last day of May, in Lilliwaup, sunrise is at 5:19 am and sunset at 9:01 pm PDT.
Sunshine
In May, the average sunshine in Lilliwaup is 8.9h.UV index
The average daily maximum UV index in May in Lilliwaup is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lilliwaup, WA
- Average high temperature in May: 63.9°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).
Average pressure in May
Lilliwaup, WA
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in May
Lilliwaup, WA
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is September (3.4mph).
Average humidity in May
Lilliwaup, WA
- Average humidity in May: 78%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Lilliwaup, WA
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Lilliwaup, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in May
Lilliwaup, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Lilliwaup, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.3 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
Lilliwaup, 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 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Lilliwaup, WA
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in May
Lilliwaup, 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
Lilliwaup, WA
- Average cloud cover in May: 47
The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in May
Lilliwaup, WA
- Average visibility in May: 4mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).





