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April Weather in Slippery Rock, United States

Last updated: June 24, 2025

In April, the average temperature in Slippery Rock, United States hovers around 10°C (49°F), with a wide range that sees minimums drop to -5°C (24°F) and maximums soar to 28°C (82°F). Expect 141 mm (5.6 in) of precipitation over approximately 16 days, accompanied by high humidity levels averaging 87%. Make sure to pack accordingly!

April Temperature in Slippery Rock

In April in Slippery Rock, the average temperature is 10°C (49°F). Maximums can reach 28°C (82°F) and minimums can be as low as -5°C (24°F). Be prepared for a mix of warm days and chilly nights when planning your trip.

April Weather in Slippery Rock: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Slippery Rock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slippery Rock, April typically has an average temperature of 10°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec293239496168737166554034
Data source: Temperature data for Slippery Rock 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 Slippery Rock

In Slippery Rock in April, the precipitation amount is 141 mm (5.6 in) over the course of 16 days.

April Precipitation Trends in Slippery Rock

The chart displays monthly precipitation patterns in Slippery Rock, 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 Slippery Rock, April typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec102117106141150140146101119129104104
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Slippery Rock

In Slippery Rock in April, humidity is 87%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions somewhat uncomfortable and requiring layered clothing to navigate the cold, clammy air effectively.

April Average Humidity in Slippery Rock

This chart illustrates the average monthly humidity levels in Slippery Rock, 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 Slippery Rock is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Slippery Rock

In Slippery Rock 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 Slippery Rock.

Maximum UV Index Levels in Slippery Rock for April

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

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

This table compares monthly weather conditions in Slippery Rock, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)102 mm (4.0 inches)88%moderate
February Weather0°C (33°F)117 mm (4.6 inches)88%moderate
March Weather4°C (39°F)106 mm (4.2 inches)87%high
April Weather10°C (49°F)141 mm (5.6 inches)87%very high
May Weather16°C (61°F)150 mm (5.9 inches)81%very high
June Weather20°C (69°F)139 mm (5.5 inches)83%very high
July Weather23°C (74°F)145 mm (5.7 inches)82%very high
August Weather22°C (71°F)101 mm (4.0 inches)76%very high
September Weather19°C (66°F)119 mm (4.7 inches)77%very high
October Weather13°C (56°F)129 mm (5.1 inches)82%high
November Weather5°C (41°F)104 mm (4.1 inches)89%moderate
December Weather1°C (35°F)104 mm (4.1 inches)86%low

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