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March Weather in Oregon, United States

Last updated: June 24, 2025

In Oregon, United States, the average temperature in March hovers around 7°C (45°F), but brace yourself for the extremes! Temperatures can plunge to a chilling -21°C (-5°F) or soar to a balmy 30°C (86°F). Expect precipitation of about 92 mm (3.6 in) spread over 10 days, with an average humidity level of 70%. Stay prepared for varied weather conditions!

March Temperature in Oregon

In March in Oregon, the average temperature is 7°C (45°F). The maximum can reach 30°C (86°F), while the minimum can drop as low as -21°C (-5°F). Pack accordingly, as you'll experience a wide range of temperatures perfect for both warm and cold weather activities.

March Weather in Oregon: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Oregon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oregon, March typically has an average temperature of 7°C (45°F), with highs reaching up to 30°C (86°F) and lows dropping to around -21°C (-5°F).
JanFebMarAprMayJunJulAugSepOctNovDec283045536577797671554235
Data source: Temperature data for Oregon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Oregon

In Oregon in March, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

March Precipitation Trends in Oregon

The chart displays monthly precipitation patterns in Oregon, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Oregon, March typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec41319282168133120110831234032
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Oregon

In Oregon in March, humidity is 70%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making travel feel more uncomfortable as the cool air mixes with the moisture, creating a heavy atmosphere that can leave you feeling sluggish and weary.

March Average Humidity in Oregon

This chart illustrates the average monthly humidity levels in Oregon, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Oregon is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Oregon

In Oregon in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Oregon, you can refer to this Hourly UV Index in Oregon.

Maximum UV Index Levels in Oregon for March

The chart shows the monthly maximum UV Index (UVI) for Oregon in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Oregon typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Oregon March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How March Weather in Oregon Compares to Other Months

Weather in Oregon varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Oregon, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Oregon, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)41 mm (1.6 inches)76%moderate
February Weather-1°C (30°F)31 mm (1.2 inches)77%moderate
March Weather7°C (45°F)92 mm (3.6 inches)70%high
April Weather12°C (53°F)82 mm (3.2 inches)73%very high
May Weather18°C (65°F)168 mm (6.6 inches)82%very high
June Weather25°C (77°F)132 mm (5.2 inches)82%extreme
July Weather26°C (79°F)119 mm (4.7 inches)81%extreme
August Weather24°C (76°F)110 mm (4.3 inches)78%very high
September Weather22°C (71°F)83 mm (3.2 inches)71%very high
October Weather13°C (56°F)123 mm (4.8 inches)71%high
November Weather6°C (43°F)40 mm (1.6 inches)81%moderate
December Weather2°C (36°F)32 mm (1.3 inches)84%moderate

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