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April Weather in Iron River, United States

Last updated: June 24, 2025

In April, the average temperature in Iron River, United States hovers around 4°C (39°F). Visitors can expect a minimum temperature of -16°C (3°F) and a maximum reach of 27°C (82°F). With 84 mm (3.3 in) of precipitation spread over 10 days, the weather can be quite unpredictable. Additionally, the average humidity is fairly high at 85%, making it essential to prepare for a humid experience.

April Temperature in Iron River

In April in Iron River, the average temperature is 4°C (39°F). The maximum can reach 27°C (82°F), while the minimum can drop as low as -16°C (3°F). Be prepared for a wide range of temperatures if you're traveling during this time.

April Weather in Iron River: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Iron River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iron River, April typically has an average temperature of 4°C (39°F), with highs reaching up to 27°C (82°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec141428395466706760453020
Data source: Temperature data for Iron River 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 Iron River

In Iron River in April, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

April Precipitation Trends in Iron River

The chart displays monthly precipitation patterns in Iron River, 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 Iron River, April typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec283846849892111101991024966
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Iron River

In Iron River in April, humidity is 85%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to ward off the cold and moisture.

April Average Humidity in Iron River

This chart illustrates the average monthly humidity levels in Iron River, 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 Iron River is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%89%85%76%71%70%71%73%82%88%91%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Iron River

In Iron River 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 Iron River.

Maximum UV Index Levels in Iron River for April

The chart shows the monthly maximum UV Index (UVI) for Iron River 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 Iron River typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Iron River 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 Iron River Compares to Other Months

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

This table compares monthly weather conditions in Iron River, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)28 mm (1.1 inches)93%low
February Weather-10°C (14°F)38 mm (1.5 inches)93%moderate
March Weather-2°C (29°F)46 mm (1.8 inches)89%moderate
April Weather4°C (39°F)84 mm (3.3 inches)85%high
May Weather12°C (55°F)98 mm (3.8 inches)76%very high
June Weather19°C (66°F)92 mm (3.6 inches)71%very high
July Weather21°C (70°F)111 mm (4.4 inches)70%very high
August Weather19°C (67°F)101 mm (4.0 inches)71%very high
September Weather15°C (60°F)99 mm (3.9 inches)73%high
October Weather7°C (45°F)102 mm (4.0 inches)81%moderate
November Weather-1°C (30°F)49 mm (1.9 inches)87%moderate
December Weather-6°C (21°F)66 mm (2.6 inches)91%low

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