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April Weather in Superior, United States

Last updated: June 24, 2025

In April, the average temperature in Superior, United States is a brisk 5°C (42°F). Expect a wide range in temperature, with minimums plummeting to -17°C (2°F) and maximums reaching a pleasant 24°C (75°F). Be prepared for wet weather, as precipitation averages 68 mm (2.7 in) over 12 days, alongside an average humidity of 76%.

April Temperature in Superior

In April, in Superior, the average temperature is 5°C (42°F). The maximum can reach 24°C (75°F), while the minimum can drop as low as -17°C (2°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to ensure comfort during their visit.

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 5°C (42°F), with highs reaching up to 24°C (75°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec262535425063686661443629
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 68 mm (2.7 in) over the course of 12 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 68 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec2536636813474716842483020
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 76%. With an average temperature of 5°C (42°F), this humidity feels like a chilling blanket enveloping you, making travel quite uncomfortable as the dampness seeps into your clothes and lingers on your skin.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112121110754
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-3°C (26°F)25 mm (1.0 inches)88%moderate
February Weather-4°C (26°F)36 mm (1.4 inches)87%high
March Weather2°C (35°F)62 mm (2.5 inches)81%very high
April Weather5°C (42°F)68 mm (2.7 inches)76%extreme
May Weather10°C (50°F)134 mm (5.3 inches)66%extreme
June Weather17°C (63°F)74 mm (2.9 inches)58%extreme
July Weather20°C (68°F)71 mm (2.8 inches)52%extreme
August Weather19°C (67°F)67 mm (2.7 inches)56%extreme
September Weather16°C (61°F)42 mm (1.6 inches)65%very high
October Weather7°C (45°F)48 mm (1.9 inches)76%high
November Weather2°C (36°F)30 mm (1.2 inches)82%moderate
December Weather-2°C (29°F)19 mm (0.8 inches)89%moderate

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