December Weather in Clarktown, United States

Last updated: June 24, 2025

In December, the average temperature in Clarktown, United States hovers around 4°C (40°F). Expect chilly conditions with minimum temperatures dipping as low as -13°C (9°F) and highs reaching up to 20°C (69°F). Throughout the month, the area experiences 112 mm (4.4 in) of precipitation over approximately 11 days, and the air remains quite damp, with an average humidity of 87%.

December Temperature in Clarktown

In December in Clarktown, the average temperature is 4°C (40°F). Maximums can reach 20°C (69°F), while minimums can be as low as -13°C (9°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Clarktown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarktown, December typically has an average temperature of 4°C (40°F), with highs reaching up to 20°C (69°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec353946556673787570604540
Data source: Temperature data for Clarktown 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 Clarktown

In Clarktown in December, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.

December Precipitation Trends in Clarktown

The chart displays monthly precipitation patterns in Clarktown, 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 Clarktown, December typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8512410612812815710712011011677112
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Clarktown

In Clarktown in December humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

December Average Humidity in Clarktown

This chart illustrates the average monthly humidity levels in Clarktown, 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 Clarktown is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Clarktown

In Clarktown in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Clarktown, you can check the information here.

Maximum UV Index Levels in Clarktown for December

The chart shows the monthly maximum UV Index (UVI) for Clarktown 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 Clarktown typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098653
Data source: Clarktown 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 Clarktown Compares to Other Months

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

This table compares monthly weather conditions in Clarktown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)85 mm (3.3 inches)88%moderate
February Weather4°C (39°F)124 mm (4.9 inches)88%moderate
March Weather8°C (47°F)106 mm (4.2 inches)87%high
April Weather13°C (55°F)128 mm (5.0 inches)85%very high
May Weather19°C (66°F)128 mm (5.0 inches)81%very high
June Weather23°C (73°F)157 mm (6.2 inches)82%very high
July Weather25°C (78°F)107 mm (4.2 inches)81%very high
August Weather24°C (75°F)120 mm (4.7 inches)73%very high
September Weather21°C (71°F)109 mm (4.3 inches)73%very high
October Weather15°C (60°F)116 mm (4.5 inches)78%high
November Weather7°C (45°F)77 mm (3.0 inches)89%moderate
December Weather4°C (40°F)112 mm (4.4 inches)87%moderate

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