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April Weather in Clarkson, United States

Last updated: June 24, 2025

In Clarkson, United States, the average temperature in April hovers around 14°C (57°F), making it a cool yet pleasant time of year. Expect temperatures to range from a chilly -3°C (28°F) to a warm 30°C (86°F). During this month, precipitation can reach 146 mm (5.8 in) over approximately 12 days, contributing to an average humidity level of 82%.

April Temperature in Clarkson

In April in Clarkson, the average temperature is 14°C (57°F). Maximums can reach 30°C (86°F), while minimums can drop as low as -3°C (28°F). This wide range makes it essential for travelers to pack layers and be prepared for varying weather conditions.

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

The chart illustrates April temperature patterns in Clarkson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarkson, April typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec374149576875797772614642
Data source: Temperature data for Clarkson 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 Clarkson

In Clarkson in April, the precipitation amount is 146 mm (5.8 in) spread over 12 days.

April Precipitation Trends in Clarkson

The chart displays monthly precipitation patterns in Clarkson, 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 Clarkson, April typically receives around 146 mm (5.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec10016113914613013312111212411494117
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Clarkson

In Clarkson in April, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

April Average Humidity in Clarkson

This chart illustrates the average monthly humidity levels in Clarkson, 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 Clarkson is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Clarkson

In Clarkson in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Clarkson.

Maximum UV Index Levels in Clarkson for April

The chart shows the monthly maximum UV Index (UVI) for Clarkson 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 Clarkson typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101110109753
Data source: Clarkson 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 Clarkson Compares to Other Months

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

This table compares monthly weather conditions in Clarkson, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)100 mm (3.9 inches)87%moderate
February Weather5°C (42°F)161 mm (6.4 inches)86%high
March Weather10°C (50°F)139 mm (5.5 inches)86%high
April Weather14°C (57°F)146 mm (5.8 inches)82%very high
May Weather20°C (69°F)130 mm (5.1 inches)82%very high
June Weather24°C (76°F)133 mm (5.2 inches)83%extreme
July Weather26°C (80°F)121 mm (4.7 inches)80%very high
August Weather25°C (77°F)111 mm (4.4 inches)74%very high
September Weather22°C (72°F)124 mm (4.9 inches)71%very high
October Weather16°C (61°F)114 mm (4.5 inches)78%high
November Weather8°C (46°F)94 mm (3.7 inches)88%moderate
December Weather6°C (42°F)117 mm (4.6 inches)88%moderate

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