April Weather in Grantsburg, United States

Last updated: June 24, 2025

In April, the average temperature in Grantsburg, United States hovers around 6°C (42°F). Expect a range of temperatures, with a frigid minimum of -19°C (-2°F) and a surprising maximum of 28°C (83°F). Prepare for some wet days, as 89 mm (3.5 in) of precipitation falls over approximately 10 days, and remember, the average humidity is quite high at 84%.

April Temperature in Grantsburg

In April in Grantsburg, the average temperature is 6°C (42°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as -19°C (-2°F). Be prepared for variable weather conditions if you're planning to travel during this time.

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

The chart illustrates April temperature patterns in Grantsburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grantsburg, April typically has an average temperature of 6°C (42°F), with highs reaching up to 28°C (83°F) and lows dropping to around -19°C (-2°F).

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

April Precipitation in Grantsburg

In Grantsburg in April, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

April Precipitation Trends in Grantsburg

The chart displays monthly precipitation patterns in Grantsburg, 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 Grantsburg, April typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Grantsburg

In Grantsburg in April humidity is 84%. With an average temperature of 6°C (42°F), this humidity feels like an uncomfortable chill that seeps into your bones, making travel less enjoyable as you find yourself bundled up yet still damp, longing for warmth and comfort.

April Average Humidity in Grantsburg

This chart illustrates the average monthly humidity levels in Grantsburg, 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 Grantsburg is approximately 84%, 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 Grantsburg

In Grantsburg 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 Grantsburg.

Maximum UV Index Levels in Grantsburg for April

The chart shows the monthly maximum UV Index (UVI) for Grantsburg 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 Grantsburg typically reaches 7, which falls under the high exposure category.

Data source: Grantsburg 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 Grantsburg Compares to Other Months

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

This table compares monthly weather conditions in Grantsburg, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	20 mm (0.8 inches)	87%	low
February Weather	-9°C (16°F)	30 mm (1.2 inches)	90%	moderate
March Weather	0°C (32°F)	47 mm (1.8 inches)	85%	moderate
April Weather	6°C (42°F)	89 mm (3.5 inches)	84%	high
May Weather	14°C (58°F)	104 mm (4.1 inches)	78%	very high
June Weather	21°C (70°F)	80 mm (3.2 inches)	80%	very high
July Weather	23°C (73°F)	100 mm (4.0 inches)	81%	very high
August Weather	21°C (70°F)	127 mm (5.0 inches)	81%	very high
September Weather	17°C (63°F)	96 mm (3.8 inches)	81%	high
October Weather	8°C (47°F)	100 mm (3.9 inches)	84%	moderate
November Weather	0°C (32°F)	38 mm (1.5 inches)	88%	moderate
December Weather	-6°C (22°F)	54 mm (2.1 inches)	84%	low