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
In May, the average high-temperature increases from a refreshing 59.5°F (15.3°C) in April to an agreeable 69.6°F (20.9°C). The average low-temperature of 48.2°F (9°C) is witnessed during May.Humidity
In Donald, the average relative humidity in May is 49%.Rainfall
In Donald, Washington, in May, it is raining for 8.1 days, with typically 0.71" (18mm) of accumulated precipitation. In Donald, during the entire year, the rain falls for 78.5 days and collects up to 5.16" (131mm) of precipitation.Snowfall
April through August and October are months without snowfall in Donald, Washington.Daylight
In Donald, Washington, the average length of the day in May is 15h and 2min.On the first day of May, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:46 pm PDT.
Sunshine
In Donald, the average sunshine in May is 11.4h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
How many hours of daylight does Donald have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Donald, WA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in May: 48.2°F
The month with the highest average low temperature is August (61.2°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in May
Donald, WA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in May
Donald, WA
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are April and June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).
Average humidity in May
Donald, WA
- Average humidity in May: 49%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (38%).
Average rainfall in May
Donald, WA
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is January (0.83").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Donald, WA
- Average rainfall days in May: 8.1 days
The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is July (2.1 days).
Average snowfall in May
Donald, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in May
Donald, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.9 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
Donald, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 11h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in May
Donald, WA
- Average sunshine days in May: 20.8 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is February (17.9 days).
Average UV index in May
Donald, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Donald, WA
- Average cloud cover in May: 22
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in May
Donald, 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).
Donald, Washington, USA
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