April Weather in Willow, United States

Last updated: June 24, 2025

In April, the average temperature in Willow, United States hovers around 2°C (36°F), offering a brisk climate for outdoor activities. Be prepared for chilly spells, as temperatures can dip to a frosty -20°C (-4°F), while occasionally peaking at a mild 18°C (64°F). Expect about 40 mm (1.6 in) of precipitation spread over 10 days, with an average humidity level of 82%, making for a damp yet invigorating atmosphere.

April Temperature in Willow

In April in Willow, the average temperature is 2°C (36°F). The maximum can reach 18°C (64°F), while the minimum can drop to as low as -20°C (-4°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates April temperature patterns in Willow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willow, April typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (64°F) and lows dropping to around -20°C (-4°F).

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

April Precipitation in Willow

In Willow in April, the precipitation amount is 40 mm (1.6 in) over a span of 10 days.

April Precipitation Trends in Willow

The chart displays monthly precipitation patterns in Willow, 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 Willow, April typically receives around 40 mm (1.6 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 Willow

In Willow in April humidity is 82%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making even brief outings feel uncomfortable and penetrating.

April Average Humidity in Willow

This chart illustrates the average monthly humidity levels in Willow, 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 Willow is approximately 82%, 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 Willow

In Willow in April, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Willow, you can check the information here.

Maximum UV Index Levels in Willow for April

The chart shows the monthly maximum UV Index (UVI) for Willow 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 Willow typically reaches 3, which falls under the moderate exposure category.

Data source: Willow 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 Willow Compares to Other Months

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

This table compares monthly weather conditions in Willow, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (10°F)	36 mm (1.4 inches)	95%	low
February Weather	-9°C (16°F)	48 mm (1.9 inches)	95%	low
March Weather	-6°C (22°F)	41 mm (1.6 inches)	90%	moderate
April Weather	2°C (36°F)	40 mm (1.6 inches)	82%	moderate
May Weather	9°C (49°F)	79 mm (3.1 inches)	85%	moderate
June Weather	14°C (57°F)	80 mm (3.2 inches)	95%	high
July Weather	16°C (62°F)	86 mm (3.4 inches)	100%	high
August Weather	14°C (58°F)	134 mm (5.3 inches)	99%	moderate
September Weather	9°C (49°F)	107 mm (4.2 inches)	97%	moderate
October Weather	3°C (37°F)	110 mm (4.3 inches)	93%	low
November Weather	-6°C (21°F)	67 mm (2.6 inches)	97%	low
December Weather	-8°C (17°F)	74 mm (2.9 inches)	98%	low