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March Weather in Portland. Oregon, United States. Daily high temperatures increase by 5°F, from 54°F to 59°F, rarely falling below 46°F or exceeding 70°F. Daily low temperatures increase by 3°F, from 39°F to 42°F, rarely falling below 31°F or exceeding 48°F. For reference, on August 2, the hottest day of the year, temperatures in ...
Get the monthly weather forecast for Portland, OR, including daily high/low, historical averages, to help you plan ahead.
- Temperature
- Precipitation
- Sun
- Humidity
- Storms
Most days in March heat up to over 50 degrees Fahrenheit (10 degrees Celsius) in Portland. The city averages one or two days this month when the thermometer reaches into the 70s °F (over 21 °C). Temperatures above 80 °F (27 °C) are not expected here this time of year. March has frost for an average of 3 nights. But the temperature does not normally...
Half the time, Portland receives 3.3 to 5.2 inches (85 to 133 mm) of rainfall in March. One in four years has drier weather, while another one in four is wetter. In rare years, Portland gets a light snowfall in March.
The sun's rays reach the ground in Portland during 48 percent of daylight hours on average in March, for a total of 178 hours in the month. Typically on 3 days this month the sky is mainly clear, with at most 30 percent cloud cover. Sunlight in March at Portland lasts for 11 hours and 57 minutes a day on average. The shortest day of the month is th...
The relative humidity in Portland during March usually peaks at 87 percent in the morning then drops to 59 percent by mid afternoon.
In some years, a rainstorm drops an inch (25 mm) or more of water in a day on Portland during March. A March thunderstorm passes over the city in most, but not all, years.
In March, Portland generally has moderate temperatures and high rainfall. Anticipate daytime temperatures around 13°C , while night temperatures can drop to 4°C . Portland in March usually receives high rainfall, averaging around 125 mm for the month. Typically around 20 days of rainfall is expected. The city usually sees around 191 hours of ...
What Was the Hottest March Ever in Portland? 1934 was the warmest March in the history of Portland, Oregon. The average daily high temperature was 64.0 °F, and the average low was 46.4 °F.
The unfolding of March shows an average high-temperature of a cool 52.5°F (11.4°C), indicating a slight variance from February's 47.5°F (8.6°C). In Portland, the March nights cool down to an average low of 38.1°F (3.4°C). Humidity In March, the average relative humidity is 81%. Rainfall
