Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The onset of May brings a rise in the average high-temperature, elevating from a mild 58.6°F (14.8°C) in April to a pleasant 68.5°F (20.3°C). Throughout May nights, Roosevelt registers an average low-temperature of 47.1°F (8.4°C).Humidity
In May, the average relative humidity in Roosevelt, Washington, is 54%.Rainfall
In Roosevelt, Washington, in May, during 10.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 107.9 rainfall days, and 8.46" (215mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 14h and 57min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of May, in Roosevelt, sunrise is at 5:14 am and sunset at 8:42 pm PDT.
Sunshine
The average sunshine in May in Roosevelt is 11h.UV index
The average daily maximum UV index in May in Roosevelt is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during May translates into the following guidance:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are the temperatures in Roosevelt in May?
What is the average humidity in May in Roosevelt?
How much does it rain in Roosevelt in May?
When it does not snow in Roosevelt?
What is the average length of the day in May in Roosevelt?
When are sunrise and sunset in May in Roosevelt?
How many hours of sunshine does Roosevelt have in May?
How high is the UV index in May in Roosevelt?
Average temperature in May
Roosevelt, WA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in May: 47.1°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure in May
Roosevelt, WA
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in May
Roosevelt, WA
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is June (9.2mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in May
Roosevelt, WA
- Average humidity in May: 54%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in May
Roosevelt, WA
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is January (1.1").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Roosevelt, WA
- Average rainfall days in May: 10.9 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (4.4 days).
Average snowfall in May
Roosevelt, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Roosevelt, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Roosevelt, 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: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in May
Roosevelt, WA
- Average sunshine days in May: 18.4 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (14 days).
Average UV index in May
Roosevelt, WA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Roosevelt, WA
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Roosevelt, 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).
Roosevelt, Washington, USA
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