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April Weather in Appleton, United States

Last updated: June 24, 2025

In April, the average temperature in Appleton, United States hovers around 5°C (42°F). Expect a range where temperatures can dip to a chilly -18°C (1°F) or rise to a warm 29°C (85°F). This month also brings 66 mm (2.6 in) of precipitation, typically spread over 9 days, and the air remains quite humid with an average of 82%.

April Temperature in Appleton

In April in Appleton, the average temperature is 5°C (42°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as -18°C (1°F). Travelers should be prepared for a wide range of temperatures, from chilly to quite warm, so layering clothing is advisable.

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

The chart illustrates April temperature patterns in Appleton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Appleton, April typically has an average temperature of 5°C (42°F), with highs reaching up to 29°C (85°F) and lows dropping to around -18°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec141431425871747063473323
Data source: Temperature data for Appleton 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 Appleton

In Appleton in April, the precipitation amount is 66 mm (2.6 in) over the course of 9 days.

April Precipitation Trends in Appleton

The chart displays monthly precipitation patterns in Appleton, 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 Appleton, April typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec20184766928410113582822536
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Appleton

In Appleton in April humidity is 82%. With an average temperature of 5°C (42°F), this humidity feels like a wet chill that seeps into your bones, making outdoor exploration uncomfortable and dampening the joy of traveling.

April Average Humidity in Appleton

This chart illustrates the average monthly humidity levels in Appleton, 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 Appleton is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Appleton

In Appleton in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Appleton.

Maximum UV Index Levels in Appleton for April

The chart shows the monthly maximum UV Index (UVI) for Appleton 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 Appleton typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Appleton 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 Appleton Compares to Other Months

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

This table compares monthly weather conditions in Appleton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)20 mm (0.8 inches)85%moderate
February Weather-10°C (15°F)18 mm (0.7 inches)89%moderate
March Weather0°C (31°F)47 mm (1.9 inches)81%moderate
April Weather5°C (42°F)66 mm (2.6 inches)82%high
May Weather15°C (58°F)92 mm (3.6 inches)76%very high
June Weather22°C (72°F)84 mm (3.3 inches)81%very high
July Weather23°C (74°F)101 mm (4.0 inches)82%very high
August Weather21°C (70°F)135 mm (5.3 inches)83%very high
September Weather17°C (64°F)82 mm (3.2 inches)82%high
October Weather8°C (48°F)82 mm (3.2 inches)82%moderate
November Weather1°C (33°F)25 mm (1.0 inches)87%moderate
December Weather-5°C (23°F)36 mm (1.4 inches)84%low

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