April Weather in Rockford, United States

Last updated: June 24, 2025

In April, the average temperature in Rockford, United States hovers around 8°C (46°F). Temperatures can vary significantly, with a minimum as low as -13°C (9°F) and a maximum reaching up to 28°C (82°F). Expect about 77 mm (3.0 in) of precipitation spread over 9 days, contributing to an average humidity level of 81%.

April Temperature in Rockford

In April in Rockford, the average temperature is 8°C (46°F), with maximums reaching up to 28°C (82°F) and minimums dropping as low as -13°C (9°F). It's advisable to pack layers to comfortably navigate the range of temperatures while exploring the area.

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 (46°F), with highs reaching up to 28°C (82°F) and lows dropping to around -13°C (9°F).

Data source: Temperature data for Rockford generated using information from the Copernicus Climate Change Service.

April Precipitation in Rockford

In Rockford in April, the precipitation amount is 77 mm (3.0 in) over the course of 9 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 77 mm (3.0 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Rockford

In Rockford in April humidity is 81%. With an average temperature of 8°C (46°F), this humidity feels like walking through a damp blanket, making traveling uncomfortable and leading to a persistent chill that seeps into your bones.

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 81%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	39 mm (1.5 inches)	82%	moderate
February Weather	-7°C (19°F)	48 mm (1.9 inches)	84%	moderate
March Weather	2°C (36°F)	74 mm (2.9 inches)	80%	moderate
April Weather	8°C (46°F)	77 mm (3.0 inches)	81%	very high
May Weather	16°C (61°F)	162 mm (6.4 inches)	74%	very high
June Weather	22°C (73°F)	128 mm (5.0 inches)	80%	extreme
July Weather	24°C (75°F)	97 mm (3.8 inches)	80%	very high
August Weather	22°C (71°F)	115 mm (4.5 inches)	77%	very high
September Weather	19°C (66°F)	101 mm (4.0 inches)	75%	very high
October Weather	10°C (50°F)	125 mm (4.9 inches)	80%	moderate
November Weather	2°C (36°F)	49 mm (1.9 inches)	87%	moderate
December Weather	-2°C (28°F)	36 mm (1.4 inches)	83%	moderate