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March Weather in Oregon, United States

Last updated: June 24, 2025

In March, the average temperature in Oregon, United States hovers around 2°C (36°F). Expect a minimum plunge to -24°C (-12°F), while the mercury may rise to a maximum of 23°C (73°F). This month also brings about 58 mm (2.3 in) of precipitation over approximately 9 days, coupled with a captivating average humidity of 85%.

March Temperature in Oregon

In March in Oregon, the average temperature is 2°C (36°F), with maximums reaching 23°C (73°F) and minimums dropping as low as -24°C (-12°F). This wide temperature range means travelers should be prepared for both mild and extremely cold weather when visiting.

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 2°C (36°F), with highs reaching up to 23°C (73°F) and lows dropping to around -24°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec212336465971757165513629
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 precipitation amount is 58 mm (2.3 in) spread over 9 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 58 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec52555895133121841111201174346
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 85%. With an average temperature of 2°C (36°F), this humidity feels like an icy blanket clinging to your skin, making travel challenging as the cold dampness seeps into your bones and fogs your breath.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
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-6°C (21°F)52 mm (2.1 inches)85%moderate
February Weather-5°C (23°F)54 mm (2.1 inches)85%moderate
March Weather2°C (36°F)58 mm (2.3 inches)85%moderate
April Weather8°C (46°F)95 mm (3.7 inches)85%very high
May Weather15°C (60°F)133 mm (5.2 inches)78%very high
June Weather21°C (71°F)121 mm (4.8 inches)80%very high
July Weather24°C (75°F)84 mm (3.3 inches)78%very high
August Weather22°C (71°F)111 mm (4.4 inches)76%very high
September Weather18°C (65°F)120 mm (4.7 inches)79%very high
October Weather11°C (51°F)117 mm (4.6 inches)83%moderate
November Weather2°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-2°C (29°F)46 mm (1.8 inches)81%low

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