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April Weather in Winona, United States

Last updated: June 24, 2025

In April, the average temperature in Winona, United States is a pleasant 17°C (63°F). However, temperatures can range from a chilly 0°C (33°F) to a warm 31°C (88°F). Be prepared for 151 mm (5.9 in) of precipitation over approximately 9 days, and don't forget that the average humidity can reach a cozy 82%!

April Temperature in Winona

In April in Winona, the average temperature is 17°C (63°F). Maximums can reach 31°C (88°F), while minimums can drop as low as 0°C (33°F). It’s advisable to pack layers to accommodate the varying temperatures and enjoy your trip comfortably.

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

The chart illustrates April temperature patterns in Winona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winona, April typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec465159637379828177675350
Data source: Temperature data for Winona 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 Winona

In Winona in April, the total precipitation amount is 151 mm (5.9 in) distributed over 9 days.

April Precipitation Trends in Winona

The chart displays monthly precipitation patterns in Winona, 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 Winona, April typically receives around 151 mm (5.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec119183162151114127951209312680125
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Winona

In Winona in April, humidity is 82%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you—comfortable yet heavy, making outdoor activities more taxing and requiring frequent breaks for hydration.

April Average Humidity in Winona

This chart illustrates the average monthly humidity levels in Winona, 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 Winona is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Winona

In Winona in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Winona.

Maximum UV Index Levels in Winona for April

The chart shows the monthly maximum UV Index (UVI) for Winona 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 Winona typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Winona 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 Winona Compares to Other Months

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

This table compares monthly weather conditions in Winona, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)119 mm (4.7 inches)85%moderate
February Weather10°C (51°F)183 mm (7.2 inches)84%high
March Weather15°C (59°F)162 mm (6.4 inches)82%very high
April Weather17°C (63°F)151 mm (5.9 inches)82%very high
May Weather23°C (73°F)114 mm (4.5 inches)82%extreme
June Weather26°C (79°F)127 mm (5.0 inches)79%extreme
July Weather28°C (82°F)94 mm (3.7 inches)82%extreme
August Weather27°C (81°F)120 mm (4.7 inches)77%extreme
September Weather25°C (78°F)93 mm (3.7 inches)74%very high
October Weather19°C (67°F)126 mm (5.0 inches)73%very high
November Weather12°C (53°F)80 mm (3.1 inches)85%high
December Weather10°C (50°F)125 mm (4.9 inches)88%moderate

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