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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 pleasant 12°C (53°F). However, be prepared for some extremes: temperatures can drop to a chilling -9°C (17°F) or soar to a warm 31°C (88°F). Expect around 82 mm (3.2 in) of precipitation spread over 9 days, bringing a 73% average humidity that adds a touch of moisture to the air.

April Temperature in Oregon

In April in Oregon, the average temperature is 12°C (53°F), with maximums that can reach 31°C (88°F) and minimums that can drop as low as -9°C (17°F). Travelers should be prepared for a wide range of temperatures during this time.

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 12°C (53°F), with highs reaching up to 31°C (88°F) and lows dropping to around -9°C (17°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.

April Precipitation in Oregon

In Oregon in April, the total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 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 82 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec41319282168133120110831234032
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 73%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities somewhat uncomfortable and requiring layers to keep warm while exploring.

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 73%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Oregon

In Oregon in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
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-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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