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April Weather in Chester, United States

Last updated: June 24, 2025

In April, the average temperature in Chester, United States hovers around 5°C (41°F). Temperatures can vary dramatically, dipping as low as -19°C (-2°F) and soaring up to 29°C (84°F). During this month, expect 37 mm (1.4 in) of precipitation spread over approximately 8 days. The air remains quite humid, with an average humidity level of 75%.

April Temperature in Chester

In April in Chester, the average temperature is 5°C (41°F). Maximum can reach 29°C (84°F) and minimum can be as low as -19°C (-2°F). Visitors should come prepared for a wide range of temperatures, from chilly conditions to surprisingly warm days.

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

The chart illustrates April temperature patterns in Chester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chester, April typically has an average temperature of 5°C (41°F), with highs reaching up to 29°C (84°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec211530415464726958423224
Data source: Temperature data for Chester 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 Chester

In Chester in April, the precipitation amount is 37 mm (1.4 in) spread over 8 days.

April Precipitation Trends in Chester

The chart displays monthly precipitation patterns in Chester, 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 Chester, April typically receives around 37 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec133318375749102528202820
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Chester

In Chester in April, humidity is 75%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less inviting and requiring extra layers for comfort while traveling.

April Average Humidity in Chester

This chart illustrates the average monthly humidity levels in Chester, 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 Chester is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%83%76%73%75%75%70%67%72%82%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Chester

In Chester 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 Chester.

Maximum UV Index Levels in Chester for April

The chart shows the monthly maximum UV Index (UVI) for Chester 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 Chester typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997532
Data source: Chester 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 Chester Compares to Other Months

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

This table compares monthly weather conditions in Chester, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)13 mm (0.5 inches)86%low
February Weather-9°C (15°F)33 mm (1.3 inches)89%moderate
March Weather-1°C (30°F)18 mm (0.7 inches)83%moderate
April Weather5°C (41°F)37 mm (1.4 inches)75%high
May Weather12°C (54°F)57 mm (2.2 inches)72%very high
June Weather18°C (64°F)48 mm (1.9 inches)75%very high
July Weather22°C (72°F)10 mm (0.4 inches)75%very high
August Weather20°C (69°F)25 mm (1.0 inches)69%very high
September Weather14°C (58°F)28 mm (1.1 inches)66%high
October Weather6°C (42°F)20 mm (0.8 inches)72%moderate
November Weather0°C (32°F)28 mm (1.1 inches)82%moderate
December Weather-5°C (24°F)20 mm (0.8 inches)89%low

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