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April Weather in Rockford, United States

Last updated: June 24, 2025

In Rockford, United States, the average temperature in April hovers around 8°C (47°F), with a notable range that can plummet to a chilly -7°C (20°F) or rise to a warm 28°C (83°F). Expect 87 mm (3.4 in) of precipitation spread over approximately 13 days, and prepare for a consistently high average humidity of 87%.

April Temperature in Rockford

In April in Rockford, the average temperature is 8°C (47°F). Maximums can reach 28°C (83°F), while minimums can drop as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures, making layered clothing a wise choice for their visit.

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

The chart illustrates April temperature patterns in Rockford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockford, April typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (83°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec262736465970757265533832
Data source: Temperature data for Rockford 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 Rockford

In Rockford in April, the precipitation amount is 87 mm (3.4 in) spread over 13 days.

April Precipitation Trends in Rockford

The chart displays monthly precipitation patterns in Rockford, 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 Rockford, April typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6469688713912470781151326367
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Rockford

In Rockford in April, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

April Average Humidity in Rockford

This chart illustrates the average monthly humidity levels in Rockford, 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 Rockford is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Rockford

In Rockford 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 Rockford.

Maximum UV Index Levels in Rockford for April

The chart shows the monthly maximum UV Index (UVI) for Rockford 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 Rockford typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Rockford 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 Rockford Compares to Other Months

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

This table compares monthly weather conditions in Rockford, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)64 mm (2.5 inches)87%low
February Weather-3°C (27°F)69 mm (2.7 inches)87%moderate
March Weather2°C (37°F)67 mm (2.7 inches)86%moderate
April Weather8°C (47°F)87 mm (3.4 inches)87%very high
May Weather15°C (60°F)139 mm (5.5 inches)82%very high
June Weather21°C (70°F)124 mm (4.9 inches)81%very high
July Weather24°C (75°F)70 mm (2.7 inches)78%very high
August Weather22°C (72°F)78 mm (3.1 inches)79%very high
September Weather18°C (65°F)115 mm (4.5 inches)79%high
October Weather11°C (53°F)132 mm (5.2 inches)82%moderate
November Weather3°C (38°F)63 mm (2.5 inches)87%moderate
December Weather0°C (32°F)67 mm (2.7 inches)86%low

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