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April Weather in Sunbury, United States

Last updated: June 24, 2025

In Sunbury, United States, the average temperature in April is a comfortable 11°C (51°F), with temperature swings ranging from a brisk -3°C (26°F) to a warm 29°C (84°F). You'll want to prepare for some wet days, as the region experiences about 103 mm (4.1 in) of precipitation over 12 days. Additionally, expect a high average humidity of 83%, making it feel a bit more sticky during this time.

April Temperature in Sunbury

In April in Sunbury, the average temperature is 11°C (51°F). Maximum can reach 29°C (84°F) and minimum can be as low as -3°C (26°F). Be prepared for a range of temperatures, making it wise to pack layers for your travels.

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

The chart illustrates April temperature patterns in Sunbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sunbury, April typically has an average temperature of 11°C (51°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec313441516271767468574336
Data source: Temperature data for Sunbury 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 Sunbury

In Sunbury in April, the total precipitation amount is 103 mm (4.1 in), occurring over the course of 12 days.

April Precipitation Trends in Sunbury

The chart displays monthly precipitation patterns in Sunbury, 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 Sunbury, April typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec699789103119871291191171119184
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sunbury

In Sunbury in April, humidity is 83%. With an average temperature of 11°C (51°F), this humidity feels like a chilly dampness that clings to your skin, making any outdoor adventures a bit uncomfortable and best enjoyed with layered clothing and a light raincoat.

April Average Humidity in Sunbury

This chart illustrates the average monthly humidity levels in Sunbury, 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 Sunbury is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sunbury

In Sunbury 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 Sunbury.

Maximum UV Index Levels in Sunbury for April

The chart shows the monthly maximum UV Index (UVI) for Sunbury 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 Sunbury typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Sunbury 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 Sunbury Compares to Other Months

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

This table compares monthly weather conditions in Sunbury, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)69 mm (2.7 inches)87%moderate
February Weather1°C (34°F)97 mm (3.8 inches)85%moderate
March Weather5°C (41°F)89 mm (3.5 inches)85%high
April Weather11°C (51°F)103 mm (4.1 inches)83%very high
May Weather17°C (62°F)119 mm (4.7 inches)75%very high
June Weather22°C (71°F)87 mm (3.4 inches)73%very high
July Weather25°C (77°F)129 mm (5.1 inches)65%very high
August Weather23°C (74°F)119 mm (4.7 inches)62%very high
September Weather20°C (68°F)117 mm (4.6 inches)66%very high
October Weather14°C (58°F)111 mm (4.4 inches)79%high
November Weather6°C (43°F)91 mm (3.6 inches)87%moderate
December Weather2°C (36°F)84 mm (3.3 inches)85%low

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