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May Weather in Clear Lake, United States

Last updated: June 24, 2025

In Clear Lake, United States, the average temperature in May hovers around 15°C (60°F), offering a comfortable backdrop for your adventures. However, be prepared for fluctuations, as temperatures can dip to a chilly 0°C (32°F) or soar to a warm 35°C (94°F). Expect 159 mm (6.2 in) of precipitation spread over 14 days, which contributes to the 74% average humidity—ideal for lush landscapes but perfect for keeping that umbrella handy!

May Temperature in Clear Lake

In May in Clear Lake, the average temperature is 15°C (60°F). Maximums can reach 35°C (94°F), and minimums can be as low as 0°C (32°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly!

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

The chart illustrates May 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, May typically has an average temperature of 15°C (60°F), with highs reaching up to 35°C (94°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec181834456072747065493527
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.

May Precipitation in Clear Lake

In Clear Lake in May, the precipitation amount is 159 mm (6.2 in) during 14 days, indicating a fairly wet period.

May Precipitation Trends in Clear Lake

The chart displays monthly precipitation patterns in Clear Lake, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Clear Lake, May typically receives around 159 mm (6.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec364772831591331021211051104736
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Clear Lake

In Clear Lake in May humidity is 74%. With an average temperature of 15°C (60°F), this humidity feels like a warm embrace that can make outdoor activities feel slightly stifling, so travelers should be prepared to hydrate frequently and take breaks in the shade.

May Average Humidity in Clear Lake

This chart illustrates the average monthly humidity levels in Clear Lake, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Clear Lake is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Clear Lake

In Clear Lake in May, 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 Clear Lake.

Maximum UV Index Levels in Clear Lake for May

The chart shows the monthly maximum UV Index (UVI) for Clear Lake in May, 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 May, the maximum UV index in Clear Lake typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589111098533
Data source: Clear Lake May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)36 mm (1.4 inches)82%moderate
February Weather-8°C (18°F)47 mm (1.9 inches)84%moderate
March Weather1°C (35°F)72 mm (2.9 inches)80%moderate
April Weather7°C (45°F)83 mm (3.3 inches)81%very high
May Weather15°C (60°F)159 mm (6.2 inches)74%very high
June Weather22°C (72°F)133 mm (5.2 inches)80%extreme
July Weather23°C (74°F)102 mm (4.0 inches)80%very high
August Weather21°C (71°F)121 mm (4.8 inches)77%very high
September Weather18°C (65°F)105 mm (4.1 inches)75%very high
October Weather10°C (49°F)110 mm (4.3 inches)80%moderate
November Weather2°C (35°F)47 mm (1.9 inches)87%moderate
December Weather-3°C (27°F)36 mm (1.4 inches)83%moderate

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