May weather forecastLynnwood, WA
May
Weather in May
May marks the advent of warm weather in Lynnwood, with increasing daylight hours and less frequent showers. Pleasant weather dominates the month, indicating the proximity of summer. An annual low in rainfall, 1.57" (40mm), comes to pass in May, contributing to the delightful weather. These marked changes make May stand out with a mesmerizing blend of warmth, brightness, and minimal precipitation.Temperature
The commencement of May sees a minor shift in the average high-temperature, moving from a cool 55.2°F (12.9°C) in April to a refreshing 62.8°F (17.1°C). In May, the nighttime temperature lowers to an average of 45.5°F (7.5°C).Humidity
In Lynnwood, the average relative humidity in May is 76%.Rainfall
In Lynnwood, in May, during 13.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, in Lynnwood, there are 173 rainfall days, and 25" (635mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Lynnwood, Washington, the average length of the day in May is 15h and 11min.On the first day of May, sunrise is at 5:49 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:59 pm PDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lynnwood, WA
- Average high temperature in May: 62.8°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (35.8°F).
Average pressure in May
Lynnwood, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in May
Lynnwood, WA
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is November (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Lynnwood, WA
- Average humidity in May: 76%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Lynnwood, WA
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Lynnwood, WA
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in May
Lynnwood, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Lynnwood, 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, September and October (0 days).
Average daylight in May /
Average sunshine in May
Lynnwood, 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).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Lynnwood, WA
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in May
Lynnwood, 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
Lynnwood, WA
- Average cloud cover in May: 40
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Lynnwood, WA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
