nomadseason

December Weather in Ellisville, United States

Last updated: June 24, 2025

In December, the average temperature in Ellisville, United States hovers around 12°C (53°F). Expect a chilly minimum of -4°C (25°F) and a balmy maximum of 27°C (81°F). During this time, the region experiences 140 mm (5.5 in) of precipitation over approximately 12 days, bringing an average humidity of 87%. Be prepared for a mix of cool days and damp conditions!

December Temperature in Ellisville

In December in Ellisville, the average temperature is 12°C (53°F). Maximums can reach 27°C (81°F) and minimums can be as low as -4°C (25°F). Pack accordingly to enjoy a range of temperatures during your travels!

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

The chart illustrates December temperature patterns in Ellisville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ellisville, December typically has an average temperature of 12°C (53°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec505662667579818179715753
Data source: Temperature data for Ellisville 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 Ellisville

In Ellisville in December, the total precipitation amount is 140 mm (5.5 in) over the course of 12 days.

December Precipitation Trends in Ellisville

The chart displays monthly precipitation patterns in Ellisville, 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 Ellisville, December typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1171201091301391741331611009779140
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Ellisville

In Ellisville in December, humidity is 87%. With an average temperature of 12°C (53°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and stifling, as the air thickens and clings to your skin, sapping your energy as you navigate the sights.

December Average Humidity in Ellisville

This chart illustrates the average monthly humidity levels in Ellisville, 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 Ellisville is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ellisville

In Ellisville 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 Ellisville for better planning.

Maximum UV Index Levels in Ellisville for December

The chart shows the monthly maximum UV Index (UVI) for Ellisville 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 Ellisville typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111111110864
Data source: Ellisville 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 Ellisville Compares to Other Months

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

This table compares monthly weather conditions in Ellisville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)117 mm (4.6 inches)82%moderate
February Weather13°C (56°F)120 mm (4.7 inches)80%high
March Weather17°C (62°F)109 mm (4.3 inches)80%very high
April Weather19°C (66°F)130 mm (5.1 inches)78%extreme
May Weather24°C (75°F)139 mm (5.5 inches)73%extreme
June Weather26°C (80°F)174 mm (6.9 inches)71%extreme
July Weather27°C (82°F)133 mm (5.2 inches)79%extreme
August Weather27°C (81°F)161 mm (6.3 inches)78%extreme
September Weather26°C (79°F)100 mm (3.9 inches)80%very high
October Weather22°C (71°F)97 mm (3.8 inches)76%very high
November Weather14°C (57°F)79 mm (3.1 inches)83%high
December Weather12°C (53°F)140 mm (5.5 inches)87%moderate

Compare Ellisville's Climate with Cities Worldwide