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April Weather in Oregon, United States

Last updated: June 24, 2025

In April, the average temperature in Oregon, United States is a cool 8°C (46°F). Expect a temperature range that can dip as low as -8°C (17°F) or soar to a warm 27°C (80°F). Be prepared for some rain; with 95 mm (3.7 in) of precipitation, you can anticipate wet weather on about 12 days. Additionally, the air is quite humid, with an average of 85% humidity lingering throughout the month.

April Temperature in Oregon

In April in Oregon, the average temperature is 8°C (46°F). The maximum can reach 27°C (80°F), and the minimum can be as low as -8°C (17°F). It's advisable to pack layers to accommodate the wide range of temperatures you'll experience during your travels.

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

The chart illustrates April 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, April typically has an average temperature of 8°C (46°F), with highs reaching up to 27°C (80°F) and lows dropping to around -8°C (17°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.

April Precipitation in Oregon

In Oregon in April, the precipitation amount is 95 mm (3.7 in) over the course of 12 days.

April Precipitation Trends in Oregon

The chart displays monthly precipitation patterns in Oregon, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Oregon, April typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec52555895133121841111201174346
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oregon

In Oregon in April humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

April Average Humidity in Oregon

This chart illustrates the average monthly humidity levels in Oregon, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Oregon

In Oregon in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Oregon.

Maximum UV Index Levels in Oregon for April

The chart shows the monthly maximum UV Index (UVI) for Oregon in April, 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 April, the maximum UV index in Oregon typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Oregon April 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 April 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 April’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 April’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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