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Weather in May in Portland, Oregon

< May >
	Normal Max/ High Temperature	20°C (67°F)
	Average Temperature	14°C (57°F)
	Min/ Low Temperature	8°C (47°F)
	Normal Precipitation	52mm (2.1in)
	Number of Wet Days (probability of rain on a day)	10 (32%)
	Average Sunlight per day	07h 05'
	Average Daylight per day	14h 53'
	Sunny (Cloudy) Daylight Hours	48% (52%)
	Sun altitude at solar noon on the 21st day.	64.7°

The average temperature in Portland, Oregon in May is mild at 13.9 °C (57.02 °F).
Afternoons can be somewhat warm with average high temperatures reaching 19.5 °C (67.1 °F).
Overnight temperatures are generally a little cool with an average low of 8.3 °C (46.9 °F).
In May the range/ variation of diurnal average temperatures is 11.2 °C (20.2 °F).
Precipitation averages for May are moderate with 52.3mm (2.1 in) recorded across 10 days.
The heavens above Portland, Oregon are a little sunny with on average a measurable 7h 05' of bright sunshine per day.
The shortest day is 14h 16' long and the longest day is 15h 24' long with an average length of 14h 53'.
There are approximately 7h 36' per day when the sun is occluded by cloud, haze, fog etc.
It is sunny approximately 48.3% of daylight hours and cloudy 51.7% of daylight hours.

Weather Trend Graph for May in Portland, Oregon, Usa

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