Gresham Weather in May

Thinking of visiting Gresham in May? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 8°C (46°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Gresham in May

Historically, the month has about 17 days of rain, averaging 89 mm (3.5 in) in total. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Gresham in May

Gresham in May has perfect weather. Days reach 20°C (68°F) and nights cool to 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Gresham in May

Expect sunny days throughout the month, with an estimated 276 hours of sunshine. This makes it a pleasant time to visit Gresham.

Wind Speed in Gresham in May

Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Gresham.

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• January
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For a detailed overview over the year and the best time to visit the United States of America, check out our Gresham's climate page.

Gresham Temperature in May

Min Temperature 8°C (46°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 57%  

Precipitation 89 mm (3.5 in)  

Rainy days 17 days  

Humidity 69% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 276 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (16 KM, 10 Miles).

What to Wear in Gresham in May

For Gresham in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Gresham in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Gresham's climate page.

More climate data for Gresham

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Gresham climate overview or explore weather in the United States of America.