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December Weather in Tyler, United States

Last updated: June 24, 2025

In Tyler, United States, the average temperature in December hovers around -4°C (24°F), with extremes ranging from a chilly -25°C (-13°F) to a mild 13°C (56°F). Expect about 39 mm (1.5 in) of precipitation spread over 5 days, while humidity levels remain high at 84%. Prepare accordingly for a brisk and moist month!

December Temperature in Tyler

In December in Tyler, the average temperature is -4°C (24°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -25°C (-13°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Tyler, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tyler, December typically has an average temperature of -4°C (24°F), with highs reaching up to 13°C (56°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec161632425771736963463324
Data source: Temperature data for Tyler 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 Tyler

In Tyler in December, the precipitation amount is 39 mm (1.5 in) spread over a duration of 5 days.

December Precipitation Trends in Tyler

The chart displays monthly precipitation patterns in Tyler, 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 Tyler, December typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec24235978117112111121111842939
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tyler

In Tyler in December humidity is 84%. With an average temperature of -4°C (24°F), this humidity feels like an uninviting chill that seeps into your bones, making outdoor activities uncomfortable and travel quite challenging.

December Average Humidity in Tyler

This chart illustrates the average monthly humidity levels in Tyler, 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 Tyler is approximately 84%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Tyler

In Tyler 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 Tyler, you can visit Hourly UV Index in Tyler.

Maximum UV Index Levels in Tyler for December

The chart shows the monthly maximum UV Index (UVI) for Tyler 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 Tyler typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098532
Data source: Tyler 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 Tyler Compares to Other Months

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

This table compares monthly weather conditions in Tyler, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)24 mm (0.9 inches)85%moderate
February Weather-9°C (16°F)23 mm (0.9 inches)89%moderate
March Weather0°C (32°F)59 mm (2.3 inches)81%high
April Weather5°C (42°F)78 mm (3.1 inches)82%very high
May Weather14°C (57°F)117 mm (4.6 inches)76%very high
June Weather21°C (71°F)112 mm (4.4 inches)81%very high
July Weather23°C (73°F)111 mm (4.4 inches)82%very high
August Weather21°C (70°F)121 mm (4.8 inches)83%very high
September Weather17°C (63°F)111 mm (4.4 inches)82%very high
October Weather8°C (46°F)84 mm (3.3 inches)82%moderate
November Weather0°C (33°F)29 mm (1.2 inches)87%moderate
December Weather-4°C (24°F)39 mm (1.5 inches)84%low

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