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December Weather in Bartlett, United States

Last updated: June 24, 2025

In Bartlett, United States, the average temperature in December is a cool 13°C (55°F), with minimums plunging to -2°C (28°F) and maximums reaching up to 28°C (83°F). Expect about 74 mm (2.9 in) of precipitation spread over 6 days, and be prepared for high humidity levels of 87%.

December Temperature in Bartlett

In December in Bartlett, the average temperature is 13°C (55°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -2°C (28°F). This climate makes it an ideal time for travelers to enjoy a diverse range of outdoor activities while being prepared for varying temperatures.

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

The chart illustrates December temperature patterns in Bartlett, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bartlett, December typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec515263687682868680705955
Data source: Temperature data for Bartlett 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 Bartlett

In Bartlett in December, the total precipitation amount is 74 mm (2.9 in), spread over a period of 6 days.

December Precipitation Trends in Bartlett

The chart displays monthly precipitation patterns in Bartlett, 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 Bartlett, December typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec54657495168807699109945174
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bartlett

In Bartlett in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

December Average Humidity in Bartlett

This chart illustrates the average monthly humidity levels in Bartlett, 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 Bartlett is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bartlett

In Bartlett in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Bartlett for better planning.

Maximum UV Index Levels in Bartlett for December

The chart shows the monthly maximum UV Index (UVI) for Bartlett 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 Bartlett typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121111864
Data source: Bartlett 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 Bartlett Compares to Other Months

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

This table compares monthly weather conditions in Bartlett, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)54 mm (2.1 inches)78%moderate
February Weather11°C (53°F)65 mm (2.6 inches)78%high
March Weather17°C (63°F)74 mm (2.9 inches)77%very high
April Weather20°C (68°F)94 mm (3.7 inches)78%extreme
May Weather25°C (76°F)168 mm (6.6 inches)82%extreme
June Weather28°C (82°F)79 mm (3.1 inches)78%extreme
July Weather30°C (86°F)76 mm (3.0 inches)69%extreme
August Weather30°C (87°F)99 mm (3.9 inches)63%extreme
September Weather27°C (80°F)109 mm (4.3 inches)66%extreme
October Weather21°C (71°F)94 mm (3.7 inches)73%very high
November Weather15°C (60°F)51 mm (2.0 inches)84%high
December Weather13°C (55°F)74 mm (2.9 inches)87%moderate

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