Portland Weather in May: Temperature, Precipitation, Wind
In May, Portland experiences pleasant weather conditions with warm temperatures. The average temperature for the month is around 17.3°C (63.1°F), with daily highs reaching an average of 23.5°C (74.4°F) and nightly lows dropping to an average of 11.8°C (53.3°F).
What is the temperature in Portland in May?
Average air temperature in Portland is 17.3°C (63.1°F) in May. The outside temperature in Portland feels like 17.2°C (63°F) on a typical May day. The highest average temperature during sunny days is 23.5°C (74.4°F) and feels like 23.2°C (73.7°F). The lowest average temperature after dark is 11.8°C (53.3°F) which feels like 11.8°C (53.3°F).
How hot is Portland in May?
The hot temperature in May in Portland rises to 33.4°C (92.1°F) on sunny days with low cloud coverage and 59.6% humidity. During hottest days of May it feels like 31.3 °C (88.3°F). The average maximum temp in Portland is 23.5°C (88.3°F) during day time in May.
How cold is Portland in May?
The coldest temp in Portland in May drops to 7.6°C (45.7°F) during the cold nights. With 17.5km/h (10.9mph) winds and 59.6% humidity it feels like 7.6°C (45.7°F) on the coldest nights. The average minimum temperature is 11.8°C (53.3°F) during night time in May.
Does it rain in Portland in May?
Yes, it rains for 5 days in Portland, United States in May averaging 0.77 mm of precipitation. Portland has a 16.1% chance for rain throughout the entire month of May.
How much does it rain in Portland throughout May?
Portland has 0.77 mm (0.03 inch) of rain per day on average in May. It rains for an average of 5 days out of the entire month.
Is Portland windy in May?
The average speed of wind in Portland, United States during May is 17.5km/h (10.9mph) and average windgust is 26.6km/h (16.6mph). On some days in May wind can reach up to 35.4km/h (22mph).
What is the direction of the wind in Portland in May?
Most days of May the wind is blowing from West direction in Portland.
What are the humidity levels in Portland in May?
The average humidity levels in Portland in May are 59.6%. Daily humidity levels in Portland range from 35.4% to 81.3% during May.
How many hours of daylight are in Portland in May?
Portland has 14 hours 55 minutes of daylight in May on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Portland in May is at 5:40:18 and the sunset is at 20:35:22.
What is the cloud coverage in Portland in May?
Clouds cover 47.1% of the sky on average throughout May in Portland. The cloud coverage ranges from 4.1% to 99.6% depending on the day of the month.
What is the UV level in May in Portland?
The average UV index in Portland is 5.5 in May. UV levels change throughout the month and range from 1 to 8.
What is the solar radiation in Portland in May?
The average solar radiation is 93.8 W/m2 (Watts per square meter) in Portland during May. However solar radiation levels change throughout the month and range from 25.5 W/m2 to 211.9 W/m2.
What is the solar energy during May in Portland?
The average solar energy during May in Portland is 8.1 MJ/m2 (megajoules per square metre). Solar energy ranges from 2 MJ/m2, to 18.5 MJ/m2 during May.
Are there severe weather risks in Portland in May?
Yes, there is a 10.6% risk for severe weather in Portland, United States in May.
What is the air pressure in Portland in May?
On average the air pressure in Portland in May is 1016.1 mb (millibars). Throughout the month the sea level pressure ranges from 1008.2 mb to 1024.1 mb.
What is the visibility in Portland in May?
The average daylight visibility in Portland in May is 15.8 km (9.8 miles). Depending on the precipitation the visibility ranges from 14.5 km (9 miles) to 16 km (9.9 miles) throughout May.
What is the dew point in Portland in May?
The average dew point in Portland during May is 8.6°C (47.4°F).
Where is the data for Portland climate in May coming from?
The climate data for Portland, Oregon, United States in May is collected from the following weather stations.
- PORTLAND INTERNATIONAL AIRPORT, OR US
- PORTLAND TROUTDALE AIRPORT, OR US
- VANCOUVER PEARSON AIRPORT, WA US
- DW6016 Milwaukie OR US
- FW8831 Portland OR US
- KPDX
- KTTD
- KVUO