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December Weather in Clearwater, United States

Last updated: June 24, 2025

In Clearwater, United States, the average temperature in December hovers around -6°C (22°F), with a minimum dipping to -27°C (-17°F) and a maximum reaching up to 10°C (50°F). Expect some moisture, with precipitation totaling 45 mm (1.8 in) over the course of 6 days. The air will feel quite humid, with an average humidity level of 84%.

December Temperature in Clearwater

In December in Clearwater, the average temperature is -6°C (22°F), with maximums reaching 10°C (50°F) and minimums dropping as low as -27°C (-17°F). Travelers should be prepared for cold weather conditions and dress accordingly for a comfortable visit.

December Weather in Clearwater: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Clearwater, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clearwater, December typically has an average temperature of -6°C (22°F), with highs reaching up to 10°C (50°F) and lows dropping to around -27°C (-17°F).
JanFebMarAprMayJunJulAugSepOctNovDec141531415871737063473121
Data source: Temperature data for Clearwater 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.

December Precipitation in Clearwater

In Clearwater in December, the precipitation amount is 45 mm (1.8 in) over the course of 6 days.

December Precipitation Trends in Clearwater

The chart displays monthly precipitation patterns in Clearwater, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Clearwater, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec192651849672961461181053145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Clearwater

In Clearwater in December humidity is 84%. With an average temperature of -6°C (22°F), this humidity feels like an unpleasant chill that seeps into your bones, making travel feel much more uncomfortable and harsh than the temperature alone suggests.

December Average Humidity in Clearwater

This chart illustrates the average monthly humidity levels in Clearwater, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Clearwater is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Clearwater

In Clearwater in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Clearwater, you can visit Hourly UV Index in Clearwater.

Maximum UV Index Levels in Clearwater for December

The chart shows the monthly maximum UV Index (UVI) for Clearwater in December, 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 December, the maximum UV index in Clearwater typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Clearwater December 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 December Weather in Clearwater Compares to Other Months

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

This table compares monthly weather conditions in Clearwater, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)19 mm (0.7 inches)87%low
February Weather-10°C (15°F)26 mm (1.0 inches)90%moderate
March Weather0°C (32°F)51 mm (2.0 inches)85%moderate
April Weather5°C (42°F)84 mm (3.3 inches)84%high
May Weather14°C (58°F)96 mm (3.8 inches)78%very high
June Weather21°C (71°F)72 mm (2.8 inches)80%very high
July Weather23°C (74°F)96 mm (3.8 inches)81%very high
August Weather21°C (70°F)146 mm (5.8 inches)81%very high
September Weather17°C (63°F)118 mm (4.6 inches)81%high
October Weather8°C (47°F)105 mm (4.2 inches)84%moderate
November Weather0°C (32°F)30 mm (1.2 inches)88%moderate
December Weather-6°C (22°F)45 mm (1.8 inches)84%low

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