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April Weather in Waterville, United States

Last updated: June 24, 2025

In Waterville, United States, the average temperature in April hovers around 12°C (53°F). During this time, temperatures can range from a brisk -9°C (16°F) to a sweltering 33°C (92°F). Expect about 69 mm (2.7 in) of precipitation over 8 days, and enjoy an average humidity of 73%.

April Temperature in Waterville

In April in Waterville, the average temperature is 12°C (53°F). Maximum temperatures can reach up to 33°C (92°F), while minimum temperatures can drop as low as -9°C (16°F). Be prepared for a wide range of temperatures, so pack layers when traveling to Waterville.

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 12°C (53°F), with highs reaching up to 33°C (92°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec303045536577807672554335
Data source: Temperature data for Waterville 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 Waterville

In Waterville in April, the precipitation amount is 69 mm (2.7 in) that falls over a period of 8 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 69 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec282887692011029198631233326
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Waterville

In Waterville in April humidity is 73%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities somewhat uncomfortable and requiring layers to keep warm while exploring.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
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 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
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.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)28 mm (1.1 inches)76%moderate
February Weather-1°C (30°F)28 mm (1.1 inches)77%moderate
March Weather7°C (45°F)87 mm (3.4 inches)70%high
April Weather12°C (53°F)69 mm (2.7 inches)73%very high
May Weather18°C (65°F)201 mm (7.9 inches)82%very high
June Weather25°C (78°F)102 mm (4.0 inches)82%extreme
July Weather27°C (81°F)91 mm (3.6 inches)81%extreme
August Weather25°C (77°F)98 mm (3.9 inches)78%very high
September Weather22°C (72°F)63 mm (2.5 inches)71%very high
October Weather13°C (55°F)123 mm (4.9 inches)71%high
November Weather6°C (43°F)33 mm (1.3 inches)81%moderate
December Weather2°C (36°F)26 mm (1.0 inches)84%moderate

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