nomadseason

December Weather in Bartlett, United States

Last updated: June 24, 2025

In December, the average temperature in Bartlett, United States hovers around -2°C (29°F). While temperatures can plunge to a chilling -24°C (-11°F), they can also climb as high as 19°C (67°F). Rainfall is modest, with an average precipitation of 43 mm (1.7 in) spread over 4 days. Expect a relatively damp atmosphere with an average humidity of 79%.

December Temperature in Bartlett

In December in Bartlett, the average temperature is -2°C (29°F). Maximums can reach 19°C (67°F), while minimums can drop as low as -24°C (-11°F). Be prepared for a wide range of temperatures when traveling during this time.

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 -2°C (29°F), with highs reaching up to 19°C (67°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec242338465973767367493829
Data source: Temperature data for Bartlett generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Bartlett

In Bartlett in December, the precipitation amount is 43 mm (1.7 in) over the course of 4 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 43 mm (1.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec23238065135861008864762443
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Bartlett

In Bartlett in December, humidity is 79%. With an average temperature of -2°C (29°F), this humidity feels like a heavy, bone-chilling dampness that can make traveling quite uncomfortable and intensifies the cold.

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 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%81%69%71%80%83%84%84%77%72%80%79%
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 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 Bartlett, you can visit Hourly UV Index in Bartlett.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356991110108642
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 Weather-5°C (24°F)23 mm (0.9 inches)73%moderate
February Weather-5°C (23°F)23 mm (0.9 inches)81%moderate
March Weather3°C (38°F)80 mm (3.1 inches)69%high
April Weather8°C (46°F)65 mm (2.6 inches)71%very high
May Weather15°C (59°F)135 mm (5.3 inches)80%very high
June Weather23°C (73°F)86 mm (3.4 inches)83%extreme
July Weather24°C (76°F)100 mm (3.9 inches)84%very high
August Weather23°C (73°F)87 mm (3.4 inches)84%very high
September Weather19°C (67°F)64 mm (2.5 inches)77%very high
October Weather9°C (49°F)76 mm (3.0 inches)72%high
November Weather3°C (38°F)24 mm (1.0 inches)80%moderate
December Weather-2°C (29°F)43 mm (1.7 inches)79%low

Compare Bartlett's Climate with Cities Worldwide