May weather forecastLeavenworth, WA

May
Weather in May
May witnesses a significant improvement in weather conditions as Leavenworth steps into the full swing of spring with a surge of warmth highlighting its days. A notable minimizing of rainfall to 1.65" (42mm) and clearer skies denotes the transition to drier and more pleasant weather. Those hoping to experience outdoor festivals or indulge in hiking will find May particularly conducive. The weather almost certainly calls for lighter layers and sunscreen. Defender of its title as the town's springtime, May presents an invitation to embrace the outdoors.Temperature
As May begins, there is an increase in the average high-temperature, moving from a chilly 47.8°F (8.8°C) in April to a refreshing 59.9°F (15.5°C). Leavenworth observes a dramatic plunge from daytime highs in May, settling at an average low-temperature of 37.9°F (3.3°C).Humidity
In Leavenworth, Washington, the average relative humidity in May is 70%.Rainfall
In May, the rain falls for 15.3 days. Throughout May, 1.65" (42mm) of precipitation is accumulated. In Leavenworth, during the entire year, the rain falls for 159.9 days and collects up to 25.63" (651mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Leavenworth aggregates 0.04" (1mm) of snow. In Leavenworth, during the entire year, snow falls for 73.4 days and aggregates up to 57.99" (1473mm) of snow.Daylight
In May, the average length of the day in Leavenworth is 15h and 10min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:08 am and sunset at 8:51 pm PDT.
Sunshine
In May, the average sunshine is 10.7h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Leavenworth, WA
- Average high temperature in May: 59.9°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (30.6°F).
- Average low temperature in May: 37.9°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure in May
Leavenworth, WA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in May
Leavenworth, WA
- Average wind speed in May: 5mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in May
Leavenworth, WA
- Average humidity in May: 70%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall in May
Leavenworth, WA
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is January (4.33").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Leavenworth, WA
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in May
Leavenworth, WA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Leavenworth, WA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (17 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Leavenworth, WA
- Average daylight in May: 15h and 12min
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: 10h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Leavenworth, WA
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in May
Leavenworth, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Leavenworth, WA
- Average cloud cover in May: 33
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Leavenworth, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).





