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December Weather in Twain Harte, United States

Last updated: June 24, 2025

In December, the average temperature in Twain Harte, United States hovers around 6°C (43°F), with a minimum of -5°C (23°F) and a maximum reaching 23°C (73°F). Expect 167 mm (6.6 in) of precipitation spread over 9 days, contributing to an average humidity level of 80%. Stay prepared for a mix of chilly and warmer days in this dynamic climate!

December Temperature in Twain Harte

In December in Twain Harte, the average temperature is 6°C (43°F). Maximum temperatures can reach 23°C (73°F), while minimums can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures when traveling during this month.

December Weather in Twain Harte: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Twain Harte, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Twain Harte, December typically has an average temperature of 6°C (43°F), with highs reaching up to 23°C (73°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec434447546070777670595043
Data source: Temperature data for Twain Harte 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 Twain Harte

In Twain Harte in December, the total precipitation amount is 167 mm (6.6 in), occurring over a span of 9 days.

December Precipitation Trends in Twain Harte

The chart displays monthly precipitation patterns in Twain Harte, 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 Twain Harte, December typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec22322324610262601650105167
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Twain Harte

In Twain Harte in December humidity is 80%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor exploration quite uncomfortable, often leaving travelers feeling clammy and cold despite the relatively mild temperature.

December Average Humidity in Twain Harte

This chart illustrates the average monthly humidity levels in Twain Harte, 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 Twain Harte is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Twain Harte

In Twain Harte 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 Twain Harte, you can check the information here.

Maximum UV Index Levels in Twain Harte for December

The chart shows the monthly maximum UV Index (UVI) for Twain Harte 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 Twain Harte typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589111111109743
Data source: Twain Harte 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 Twain Harte Compares to Other Months

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

This table compares monthly weather conditions in Twain Harte, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)222 mm (8.8 inches)82%moderate
February Weather7°C (44°F)223 mm (8.8 inches)84%moderate
March Weather8°C (47°F)246 mm (9.7 inches)82%very high
April Weather12°C (54°F)102 mm (4.0 inches)78%very high
May Weather15°C (60°F)62 mm (2.5 inches)71%extreme
June Weather21°C (70°F)6 mm (0.2 inches)64%extreme
July Weather25°C (78°F)0 mm (0.0 inches)58%extreme
August Weather25°C (77°F)1 mm (0.0 inches)54%very high
September Weather21°C (70°F)6 mm (0.2 inches)55%very high
October Weather15°C (59°F)50 mm (2.0 inches)62%high
November Weather10°C (50°F)105 mm (4.1 inches)78%moderate
December Weather6°C (43°F)167 mm (6.6 inches)80%moderate

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