May weather forecastDexter, OR
May
Weather in May
The last month of the spring, May, is a refreshing month in Dexter, Oregon, with an average temperature varying between 40.6°F (4.8°C) and 65.5°F (18.6°C).Temperature
The shift from April to May sees a slight increase in the average high-temperature, transitioning from a mild 57.4°F (14.1°C) to a still refreshing 65.5°F (18.6°C). A steady average of 40.6°F (4.8°C) throughout May underscores a considerable divergence from the daytime high.Humidity
The average relative humidity in May is 78%.Rainfall
In Dexter, in May, during 13.4 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Dexter, during the entire year, the rain falls for 158.1 days and collects up to 30.12" (765mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 46min.On the first day of May in Dexter, sunrise is at 6:01 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:46 pm PDT.
Sunshine
In May, the average sunshine is 8.1h.UV index
In May, the average daily maximum UV index in Dexter is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dexter, OR
- Average high temperature in May: 65.5°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in May: 40.6°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 (33.8°F).
Average pressure in May
Dexter, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Dexter, OR
- Average wind speed in May: 3.9mph
The windiest months (with the highest average wind speed) are January and March (4.4mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in May
Dexter, OR
- Average humidity in May: 78%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Dexter, OR
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Dexter, OR
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in May
Dexter, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Dexter, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 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
Dexter, OR
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Dexter, OR
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in May
Dexter, OR
- 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, February, November and December (UV index 2).
Average cloud cover in May
Dexter, OR
- Average cloud cover in May: 50
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in May
Dexter, OR
- Average visibility in May: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
