April Weather in Waterville, United States

Last updated: June 24, 2025

In April, the average temperature in Waterville, United States hovers around 6°C (43°F). While the minimum can dip to a chilly -6°C (22°F), temperatures can occasionally rise to a pleasant 25°C (77°F). This month sees an average precipitation of 116 mm (4.6 in) spread across 12 days, contributing to an average humidity of 81%. Prepare for a mix of cool days and occasional warmth!

April Temperature in Waterville

In April in Waterville, the average temperature is 6°C (43°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, so packing layers is essential for comfort.

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

The chart illustrates April temperature patterns in Waterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waterville, April typically has an average temperature of 6°C (43°F), with highs reaching up to 25°C (77°F) and lows dropping to around -6°C (22°F).

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

April Precipitation in Waterville

In Waterville in April, the precipitation amount is 116 mm (4.6 in) over a span of 12 days.

April Precipitation Trends in Waterville

The chart displays monthly precipitation patterns in Waterville, 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 Waterville, April typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 12 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 Waterville

In Waterville in April, humidity is 81%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill enveloping you, making every step outside seem heavier and less inviting for traveling.

April Average Humidity in Waterville

This chart illustrates the average monthly humidity levels in Waterville, 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 Waterville 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 Waterville

In Waterville 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 Waterville.

Maximum UV Index Levels in Waterville for April

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

Data source: Waterville 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 Waterville Compares to Other Months

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

This table compares monthly weather conditions in Waterville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	82 mm (3.2 inches)	88%	low
February Weather	-4°C (24°F)	82 mm (3.2 inches)	88%	moderate
March Weather	-1°C (31°F)	71 mm (2.8 inches)	85%	moderate
April Weather	6°C (43°F)	116 mm (4.6 inches)	81%	high
May Weather	13°C (55°F)	81 mm (3.2 inches)	76%	very high
June Weather	18°C (65°F)	68 mm (2.7 inches)	74%	very high
July Weather	21°C (70°F)	112 mm (4.4 inches)	74%	very high
August Weather	21°C (70°F)	74 mm (2.9 inches)	74%	very high
September Weather	17°C (62°F)	68 mm (2.7 inches)	77%	high
October Weather	11°C (51°F)	123 mm (4.8 inches)	82%	moderate
November Weather	3°C (37°F)	107 mm (4.2 inches)	85%	moderate
December Weather	-3°C (27°F)	109 mm (4.3 inches)	84%	low