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April Weather in Harlan, United States

Last updated: June 24, 2025

In April, the average temperature in Harlan, United States hovers around 9°C (49°F). Expect a wide range, with minimums plummeting to -11°C (12°F) and maximums soaring up to 30°C (87°F). Precipitation averages 58 mm (2.3 in) over 10 days, while humidity levels remain high at 74%. Stay prepared for the varying conditions!

April Temperature in Harlan

In April in Harlan, the average temperature is 9°C (49°F). Maximums can reach 30°C (87°F), while minimums can plunge as low as -11°C (12°F). Travelers should be prepared for a wide range of weather conditions, making it essential to dress in layers.

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

The chart illustrates April temperature patterns in Harlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlan, April typically has an average temperature of 9°C (49°F), with highs reaching up to 30°C (87°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec232339486174767368513830
Data source: Temperature data for Harlan 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 Harlan

In Harlan in April, the total precipitation amount is 58 mm (2.3 in), measured over a span of 10 days.

April Precipitation Trends in Harlan

The chart displays monthly precipitation patterns in Harlan, 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 Harlan, April typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2938835816711070117971243537
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Harlan

In Harlan in April humidity is 74%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace that can make outdoor activities somewhat uncomfortable; travelers may find themselves needing to dress in layers to stay warm while also coping with the dampness in the air.

April Average Humidity in Harlan

This chart illustrates the average monthly humidity levels in Harlan, 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 Harlan is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Harlan

In Harlan in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Harlan.

Maximum UV Index Levels in Harlan for April

The chart shows the monthly maximum UV Index (UVI) for Harlan 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 Harlan typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810111098643
Data source: Harlan 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 Harlan Compares to Other Months

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

This table compares monthly weather conditions in Harlan, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)29 mm (1.1 inches)76%moderate
February Weather-5°C (24°F)38 mm (1.5 inches)80%moderate
March Weather4°C (39°F)82 mm (3.2 inches)73%high
April Weather9°C (49°F)58 mm (2.3 inches)74%very high
May Weather16°C (61°F)167 mm (6.6 inches)78%very high
June Weather23°C (74°F)110 mm (4.3 inches)82%extreme
July Weather25°C (76°F)70 mm (2.8 inches)83%very high
August Weather23°C (73°F)117 mm (4.6 inches)80%very high
September Weather20°C (68°F)97 mm (3.8 inches)75%very high
October Weather11°C (51°F)124 mm (4.9 inches)75%high
November Weather3°C (38°F)35 mm (1.4 inches)82%moderate
December Weather-1°C (30°F)37 mm (1.5 inches)83%moderate

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