May weather forecastCle Elum, WA
May
Weather in May
Cle Elum paints a picture of pleasantness and bloom with the arrival of May. Increased sunshine, decreased rainfall, and a more temperate climate signal the full bloom of spring. The volumes of snowfall and rainfall recorded in previous months decline substantially. Greenery envelops the city, and outdoor activities become more engaging with the warmer weather. It's an inviting time for locals and visitors alike to bask in Cle Elum's full spring charm.Temperature
May's arrival in Cle Elum brings a temperature shift, moving from a chilly 46.2°F (7.9°C) in April to a refreshing 57.7°F (14.3°C). Cle Elum throughout May, experiences an average nighttime temperature of 37.4°F (3°C).Humidity
The average relative humidity in May in Cle Elum, Washington, is 72%.Rainfall
In Cle Elum, during May, the rain falls for 16.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, in Cle Elum, there are 161.2 rainfall days, and 28.46" (723mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Cle Elum aggregates 0.04" (1mm) of snow. Throughout the year, there are 69.9 snowfall days, and 60.24" (1530mm) of snow is accumulated.Daylight
The average length of the day in May is 15h and 7min.On the first day of May, sunrise is at 5:46 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:51 pm PDT.
Sunshine
The average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May in Cle Elum is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cle Elum, WA
- Average high temperature in May: 57.7°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in May: 37.4°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (18.3°F).
Average pressure in May
Cle Elum, WA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in May
Cle Elum, WA
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in May
Cle Elum, WA
- Average humidity in May: 72%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall in May
Cle Elum, WA
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is January (4.41").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Cle Elum, WA
- Average rainfall days in May: 16.1 days
The months with the highest number of rainy days are March and April (18.3 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in May
Cle Elum, WA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (16.3").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Cle Elum, WA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Cle Elum, 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 36min).
- Average sunshine in May: 10h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Cle Elum, WA
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in May
Cle Elum, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Cle Elum, WA
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
Cle Elum, WA
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (3mi).
