April Weather in Clear Lake, United States

Last updated: June 24, 2025

In Clear Lake, United States, the average temperature in April hovers around 5°C (41°F). During this time, temperatures can fluctuate dramatically, with minimums plummeting to -16°C (3°F) and maximums soaring to 28°C (83°F). Expect about 72 mm (2.8 in) of precipitation spread over 10 days, coupled with an average humidity level of 82%.

April Temperature in Clear Lake

In April in Clear Lake, the average temperature is 5°C (41°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as -16°C (3°F). This varied climate means travelers should be prepared for both warm days and chilly nights.

April Weather in Clear Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Clear Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clear Lake, April typically has an average temperature of 5°C (41°F), with highs reaching up to 28°C (83°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec151431405670736962453223
Data source: Temperature data for Clear Lake 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 Clear Lake

In Clear Lake in April, the total precipitation amount is 72 mm (2.8 in) spread over a duration of 10 days.

April Precipitation Trends in Clear Lake

The chart displays monthly precipitation patterns in Clear Lake, 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 Clear Lake, April typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2319557298869612491802834
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Clear Lake

In Clear Lake in April, humidity is 82%. With an average temperature of 5°C (41°F), this humidity feels like a chilly, damp blanket wrapping around you, making outdoor activities less enjoyable and making it essential to dress in layers to stay warm while navigating the wet conditions.

April Average Humidity in Clear Lake

This chart illustrates the average monthly humidity levels in Clear Lake, 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 Clear Lake is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Clear Lake

In Clear Lake 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 Clear Lake.

Maximum UV Index Levels in Clear Lake for April

The chart shows the monthly maximum UV Index (UVI) for Clear Lake 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 Clear Lake typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998532
Data source: Clear Lake 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 Clear Lake Compares to Other Months

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

This table compares monthly weather conditions in Clear Lake, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)23 mm (0.9 inches)85%moderate
February Weather-10°C (15°F)19 mm (0.7 inches)89%moderate
March Weather-1°C (31°F)55 mm (2.2 inches)81%high
April Weather5°C (41°F)72 mm (2.8 inches)82%very high
May Weather13°C (56°F)98 mm (3.9 inches)76%very high
June Weather21°C (70°F)86 mm (3.4 inches)81%very high
July Weather23°C (73°F)96 mm (3.8 inches)82%very high
August Weather21°C (69°F)124 mm (4.9 inches)83%very high
September Weather17°C (63°F)91 mm (3.6 inches)82%very high
October Weather7°C (46°F)80 mm (3.1 inches)82%moderate
November Weather0°C (33°F)28 mm (1.1 inches)87%moderate
December Weather-5°C (24°F)34 mm (1.3 inches)84%low

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