April Weather in John Day, United States

Last updated: June 24, 2025

In April, the average temperature in John Day, United States hovers around 5°C (41°F). You can expect chilly days, with temperatures dipping as low as -14°C (8°F) and peaking at a mild 25°C (77°F). Rainfall is frequent, with an average precipitation of 80 mm (3.1 in) spread over 13 days. The atmosphere is quite damp, boasting an average humidity of 83%.

April Temperature in John Day

In April in John Day, the average temperature is 5°C (41°F). Maximum temperatures can reach 25°C (77°F), while minimums can drop as low as -14°C (8°F). It’s advisable to pack layers and be prepared for a wide range of weather conditions when traveling during this time.

April Weather in John Day: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in John Day, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In John Day, April typically has an average temperature of 5°C (41°F), with highs reaching up to 25°C (77°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec272835415058696757443428
Data source: Temperature data for John Day generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in John Day

In John Day in April, the precipitation amount is 80 mm (3.1 in) spread over the course of 13 days.

April Precipitation Trends in John Day

The chart displays monthly precipitation patterns in John Day, 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 John Day, April typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec701017880734131431566267
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in John Day

In John Day in April humidity is 83%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm and dry.

April Average Humidity in John Day

This chart illustrates the average monthly humidity levels in John Day, 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 John Day is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%85%83%77%81%77%60%58%75%85%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in John Day

In John Day 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 John Day.

Maximum UV Index Levels in John Day for April

The chart shows the monthly maximum UV Index (UVI) for John Day 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 John Day typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101110108642
Data source: John Day 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 John Day Compares to Other Months

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

This table compares monthly weather conditions in John Day, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)70 mm (2.7 inches)86%moderate
February Weather-2°C (29°F)101 mm (4.0 inches)86%moderate
March Weather2°C (35°F)78 mm (3.1 inches)85%high
April Weather5°C (41°F)80 mm (3.1 inches)83%very high
May Weather10°C (50°F)73 mm (2.9 inches)77%very high
June Weather15°C (59°F)41 mm (1.6 inches)81%extreme
July Weather20°C (69°F)3 mm (0.1 inches)76%very high
August Weather20°C (68°F)14 mm (0.6 inches)60%very high
September Weather14°C (58°F)31 mm (1.2 inches)58%very high
October Weather6°C (44°F)56 mm (2.2 inches)75%high
November Weather1°C (35°F)62 mm (2.4 inches)85%moderate
December Weather-2°C (28°F)67 mm (2.6 inches)87%low

Compare John Day's Climate with Cities Worldwide