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April Weather in Oconomowoc, United States

Last updated: June 24, 2025

In Oconomowoc, United States, the average temperature in April hovers around 8°C (46°F). Be prepared for a wide range of temperatures, with minimums dipping to -9°C (17°F) and maximums reaching 28°C (82°F). This month sees an average precipitation of 108 mm (4.3 in) spread over 13 days, contributing to a high average humidity of 85%.

April Temperature in Oconomowoc

In April in Oconomowoc, the average temperature is 8°C (46°F). Maximum temperatures can reach as high as 28°C (82°F), while minimums can drop to a chilly -9°C (17°F). This wide range of temperatures makes it essential for travelers to pack accordingly for varying weather conditions.

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

The chart illustrates April temperature patterns in Oconomowoc, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oconomowoc, April typically has an average temperature of 8°C (46°F), with highs reaching up to 28°C (82°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec222336465970757265523730
Data source: Temperature data for Oconomowoc 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 Oconomowoc

In Oconomowoc in April, the precipitation amount is 108 mm (4.3 in), occurring over a span of 13 days.

April Precipitation Trends in Oconomowoc

The chart displays monthly precipitation patterns in Oconomowoc, 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 Oconomowoc, April typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec5651601081291119986971134646
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oconomowoc

In Oconomowoc 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 Oconomowoc

This chart illustrates the average monthly humidity levels in Oconomowoc, 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 Oconomowoc 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 Oconomowoc

In Oconomowoc 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 Oconomowoc.

Maximum UV Index Levels in Oconomowoc for April

The chart shows the monthly maximum UV Index (UVI) for Oconomowoc 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 Oconomowoc typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Oconomowoc 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 Oconomowoc Compares to Other Months

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

This table compares monthly weather conditions in Oconomowoc, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)56 mm (2.2 inches)85%moderate
February Weather-5°C (24°F)51 mm (2.0 inches)85%moderate
March Weather2°C (36°F)60 mm (2.4 inches)85%moderate
April Weather8°C (46°F)108 mm (4.3 inches)85%very high
May Weather15°C (59°F)129 mm (5.1 inches)78%very high
June Weather21°C (70°F)111 mm (4.4 inches)80%very high
July Weather24°C (75°F)99 mm (3.9 inches)78%very high
August Weather22°C (72°F)86 mm (3.4 inches)76%very high
September Weather18°C (66°F)97 mm (3.8 inches)79%high
October Weather11°C (52°F)113 mm (4.5 inches)83%moderate
November Weather3°C (37°F)46 mm (1.8 inches)88%moderate
December Weather-1°C (30°F)46 mm (1.8 inches)81%low

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