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April Weather in Olean, United States

Last updated: June 24, 2025

In April, the average temperature in Olean, United States hovers around 7°C (45°F), with extremes ranging from a chilly -6°C (21°F) to a pleasant 26°C (80°F). Expect 117 mm (4.6 in) of precipitation spread over 16 days, resulting in an average humidity of 88%. Be prepared for a mix of weather as you explore this vibrant destination!

April Temperature in Olean

In April in Olean, the average temperature is 7°C (45°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as -6°C (21°F). Pack accordingly to enjoy a diverse range of weather during your travels!

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

The chart illustrates April temperature patterns in Olean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olean, April typically has an average temperature of 7°C (45°F), with highs reaching up to 26°C (80°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734455765706862523730
Data source: Temperature data for Olean 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 Olean

In Olean in April, the precipitation amount is 117 mm (4.6 in), which falls over a span of 16 days.

April Precipitation Trends in Olean

The chart displays monthly precipitation patterns in Olean, 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 Olean, April typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec861019111713011711790931239492
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Olean

In Olean in April humidity is 88%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through a heavy, thick atmosphere that clings to your skin.

April Average Humidity in Olean

This chart illustrates the average monthly humidity levels in Olean, 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 Olean 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 Olean

In Olean 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 Olean.

Maximum UV Index Levels in Olean for April

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

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

This table compares monthly weather conditions in Olean, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)86 mm (3.4 inches)89%moderate
February Weather-3°C (28°F)101 mm (4.0 inches)90%moderate
March Weather1°C (34°F)91 mm (3.6 inches)89%high
April Weather7°C (45°F)117 mm (4.6 inches)88%very high
May Weather14°C (57°F)130 mm (5.1 inches)80%very high
June Weather18°C (65°F)117 mm (4.6 inches)79%very high
July Weather21°C (70°F)116 mm (4.6 inches)74%very high
August Weather20°C (68°F)90 mm (3.6 inches)64%very high
September Weather17°C (62°F)93 mm (3.7 inches)67%very high
October Weather11°C (52°F)123 mm (4.8 inches)81%high
November Weather3°C (37°F)94 mm (3.7 inches)89%moderate
December Weather-1°C (31°F)92 mm (3.6 inches)88%low

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