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
A slight uplift in the average high-temperature marks May, adjusting from April's moderate 57.2°F (14°C) to a comfortable 65.3°F (18.5°C). Throughout May nights, Dallas reports a steady thermal contrast from the day, with an average low-temperature of 42.4°F (5.8°C).Humidity
In Dallas, the average relative humidity in May is 78%.Rainfall
In Dallas, Oregon, during May, the rain falls for 11.7 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Dallas, during the entire year, the rain falls for 139.9 days and collects up to 15.39" (391mm) of precipitation.Snowfall
April through October are months without snowfall in Dallas.Daylight
In May, the average length of the day is 14h and 52min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:19 pm. On the last day of May, in Dallas, sunrise is at 5:30 am and sunset at 8:52 pm PDT.
Sunshine
In May, the average sunshine in Dallas, Oregon, is 8.2h.UV index
In May, the average daily maximum UV index in Dallas is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the usual temperature for Dallas in May?
What is the average humidity in May in Dallas?
How many days does it rain in May in Dallas?
When it does not snow in Dallas?
What is the average length of the day in May in Dallas?
When are sunrise and sunset in May in Dallas?
How long on average sun shines in May in Dallas?
What is the UV index reading in May in Dallas?
Average temperature in May
Dallas, OR
- Average high temperature in May: 65.3°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in May: 42.4°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 (34°F).
Average pressure in May
Dallas, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Dallas, OR
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Dallas, OR
- Average humidity in May: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Dallas, OR
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is December (2.4").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Dallas, OR
- Average rainfall days in May: 11.7 days
The month with the highest number of rainy days is March (17.4 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in May
Dallas, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Dallas, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Dallas, OR
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in May
Dallas, OR
- Average sunshine days in May: 16.9 days
The month with the most sunshine days is July (26.1 days).
The month with the least sunshine days is March (11.6 days).
Average UV index in May
Dallas, OR
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Dallas, OR
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Dallas, OR
- Average visibility in May: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Dallas, Oregon, USA
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