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April Weather in Superior, United States

Last updated: June 24, 2025

In April, the average temperature in Superior, United States hovers around 4°C (39°F). Expect a wide range, with minimum temperatures plummeting to -12°C (11°F) and maximums reaching a pleasant 25°C (77°F). Be prepared for some rain, as precipitation totals about 87 mm (3.4 in) spread over 17 days, while the average humidity sits at a high 84%.

April Temperature in Superior

In April in Superior, the average temperature is 4°C (39°F), with maximums reaching up to 25°C (77°F) and minimums dropping as low as -12°C (11°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates April temperature patterns in Superior, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Superior, April typically has an average temperature of 4°C (39°F), with highs reaching up to 25°C (77°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec252332394958676655413327
Data source: Temperature data for Superior 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 Superior

In Superior in April, the precipitation amount is 87 mm (3.4 in) over the course of 17 days.

April Precipitation Trends in Superior

The chart displays monthly precipitation patterns in Superior, 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 Superior, April typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec7111775888465202941859592
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Superior

In Superior in April, humidity is 84%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions uncomfortable and demanding more layers than you anticipate while traveling.

April Average Humidity in Superior

This chart illustrates the average monthly humidity levels in Superior, 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 Superior is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Superior

In Superior 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 Superior.

Maximum UV Index Levels in Superior for April

The chart shows the monthly maximum UV Index (UVI) for Superior 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 Superior typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246710101097532
Data source: Superior 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 Superior Compares to Other Months

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

This table compares monthly weather conditions in Superior, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)71 mm (2.8 inches)89%low
February Weather-5°C (23°F)117 mm (4.6 inches)89%moderate
March Weather0°C (33°F)75 mm (2.9 inches)87%high
April Weather4°C (39°F)87 mm (3.4 inches)84%high
May Weather10°C (50°F)84 mm (3.3 inches)77%very high
June Weather14°C (58°F)65 mm (2.6 inches)78%very high
July Weather19°C (67°F)20 mm (0.8 inches)77%very high
August Weather19°C (66°F)29 mm (1.1 inches)64%very high
September Weather13°C (55°F)41 mm (1.6 inches)62%high
October Weather5°C (41°F)85 mm (3.4 inches)79%moderate
November Weather1°C (33°F)95 mm (3.7 inches)87%moderate
December Weather-3°C (27°F)92 mm (3.6 inches)90%low

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