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April Weather in Sun Prairie, United States

Last updated: June 24, 2025

In April, the average temperature in Sun Prairie, United States hovers around 7°C (46°F). While the minimum dips to a chilly -11°C (13°F), the maximum can reach a warm 27°C (80°F). Expect 99 mm (3.9 in) of precipitation spread over about 12 days, contributing to a high average humidity of 85%. Get ready for a month of contrasts!

April Temperature in Sun Prairie

In April in Sun Prairie, the average temperature is 7°C (46°F), with maximums reaching 27°C (80°F) and minimums plummeting to -11°C (13°F). Be prepared for a wide range of temperatures when traveling during this time.

April Weather in Sun Prairie: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Sun Prairie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sun Prairie, April typically has an average temperature of 7°C (46°F), with highs reaching up to 27°C (80°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec212235455970747164513629
Data source: Temperature data for Sun Prairie 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 Sun Prairie

In Sun Prairie in April, the total precipitation amount is 99 mm (3.9 in) recorded over a span of 12 days.

April Precipitation Trends in Sun Prairie

The chart displays monthly precipitation patterns in Sun Prairie, 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 Sun Prairie, April typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec51535799130114991061101184346
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sun Prairie

In Sun Prairie in April humidity is 85%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much colder than it actually is.

April Average Humidity in Sun Prairie

This chart illustrates the average monthly humidity levels in Sun Prairie, 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 Sun Prairie 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 Sun Prairie

In Sun Prairie 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 Sun Prairie.

Maximum UV Index Levels in Sun Prairie for April

The chart shows the monthly maximum UV Index (UVI) for Sun Prairie 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 Sun Prairie typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Sun Prairie 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 Sun Prairie Compares to Other Months

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

This table compares monthly weather conditions in Sun Prairie, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)51 mm (2.0 inches)85%moderate
February Weather-6°C (22°F)53 mm (2.1 inches)85%moderate
March Weather2°C (35°F)57 mm (2.3 inches)85%moderate
April Weather7°C (46°F)99 mm (3.9 inches)85%very high
May Weather15°C (59°F)130 mm (5.1 inches)78%very high
June Weather21°C (70°F)114 mm (4.5 inches)80%very high
July Weather24°C (75°F)99 mm (3.9 inches)78%very high
August Weather22°C (71°F)106 mm (4.2 inches)76%very high
September Weather18°C (65°F)110 mm (4.3 inches)79%very high
October Weather11°C (51°F)118 mm (4.6 inches)83%moderate
November Weather2°C (36°F)43 mm (1.7 inches)88%moderate
December Weather-2°C (29°F)46 mm (1.8 inches)81%low

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