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April Weather in Derry, United States

Last updated: June 24, 2025

In Derry, United States, the average temperature in April hovers around 10°C (50°F). Temperatures can range from a chilly -6°C (21°F) to a balmy 28°C (83°F). Expect about 137 mm (5.4 in) of precipitation over 17 days, contributing to a notably high average humidity of 88%.

April Temperature in Derry

In April in Derry, the average temperature is 10°C (50°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as -6°C (21°F). Pack accordingly to enjoy a range of weather conditions during your travels.

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

The chart illustrates April temperature patterns in Derry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Derry, April typically has an average temperature of 10°C (50°F), with highs reaching up to 28°C (83°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec293440506168737165554035
Data source: Temperature data for Derry 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 Derry

In Derry in April, the total precipitation amount is 137 mm (5.4 in), occurring over a span of 17 days.

April Precipitation Trends in Derry

The chart displays monthly precipitation patterns in Derry, 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 Derry, April typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec961351181381591541219212311796118
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Derry

In Derry in April, humidity is 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.

April Average Humidity in Derry

This chart illustrates the average monthly humidity levels in Derry, 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 Derry is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Derry

In Derry 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 Derry.

Maximum UV Index Levels in Derry for April

The chart shows the monthly maximum UV Index (UVI) for Derry 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 Derry typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Derry 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 Derry Compares to Other Months

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

This table compares monthly weather conditions in Derry, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)96 mm (3.8 inches)89%moderate
February Weather1°C (34°F)135 mm (5.3 inches)90%moderate
March Weather4°C (40°F)117 mm (4.6 inches)89%high
April Weather10°C (50°F)137 mm (5.4 inches)88%very high
May Weather16°C (61°F)158 mm (6.2 inches)80%very high
June Weather20°C (68°F)154 mm (6.1 inches)79%very high
July Weather23°C (73°F)121 mm (4.8 inches)74%very high
August Weather22°C (71°F)92 mm (3.6 inches)64%very high
September Weather19°C (66°F)123 mm (4.8 inches)67%very high
October Weather13°C (56°F)116 mm (4.6 inches)81%high
November Weather5°C (41°F)96 mm (3.8 inches)89%moderate
December Weather1°C (35°F)118 mm (4.6 inches)88%low

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