May weather forecastWhite Salmon, WA

May
Weather in May
The last month of the spring, May, is an enjoyable month in White Salmon, Washington, with an average temperature varying between 62.8°F (17.1°C) and 41.4°F (5.2°C).Temperature
Noticing a change, the average high-temperature during May moves from April's fresh 52.5°F (11.4°C) to a refreshing 62.8°F (17.1°C). In the month of May, White Salmon witnesses a consistent average low-temperature of 41.4°F (5.2°C).Humidity
The average relative humidity in May is 68%.Rainfall
In White Salmon, Washington, in May, during 12.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In White Salmon, during the entire year, the rain falls for 152.5 days and collects up to 26.93" (684mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In White Salmon, the average length of the day in May is 14h and 57min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:13 pm. On the last day of May, in White Salmon, sunrise is at 5:19 am and sunset at 8:47 pm PDT.
Sunshine
The average sunshine in May is 10.1h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
White Salmon, WA
- Average high temperature in May: 62.8°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (35.2°F).
- Average low temperature in May: 41.4°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 (26.1°F).
Average pressure in May
White Salmon, WA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in May
White Salmon, WA
- Average wind speed in May: 5.9mph
The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in May
White Salmon, WA
- Average humidity in May: 68%
The months with the highest relative humidity are January, February and December (88%).
The months with the lowest relative humidity are July and August (58%).
Average rainfall in May
White Salmon, WA
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is January (4.88").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
White Salmon, WA
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in May
White Salmon, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
White Salmon, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (6.5 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
White Salmon, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
White Salmon, WA
- Average sunshine days in May: 16.5 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
White Salmon, 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
White Salmon, WA
- Average cloud cover in May: 37
The months with the most cloud cover are January and February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
White Salmon, WA
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).





