In terms of precipitation, rainfall in Portland ranges from 20.0 - 100.0 mm per month. June is typically the wettest month, when rainfall can reach 100.0 mm. February is typically the driest time to visit Portland when rainfall is around 20.0 mm.
If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 9.0 C).
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